动态第20页 - 绿手指 - 养花技巧、花生病了怎么办、花园打理和设计

2021年06月08日

Distribution and habitat: Aloe arborescens is a species of flowering succulent perennial plant endemic to the south eastern part of Southern Africa. Aloe arborescens has adapted to many different habitats, its natural habitat usually consists of mountainous areas including rocky outcrops and exposed ridges. Its habitat can vary and is one of only a few species of aloe that is found growing from sea level up to the tops of mountains. Description: Aloe arborescens can grow to 2m (6.5 feet) tall; only young plants are suitable for use indoors. The narrow, tooth-edged leaves which are 15-22cm (6-7 inch) long and 2cm (0.8 inch) wide, form a loose rosette on the end of a bare woody stem. Offsets normally appear around the base when plants are two or three years old. Red flowers may be produced at the top of a long branched stem. Houseplant care: Aloe arborescens is an easy to grow houseplant as long as the light requirements are met. [图片]Light: Bright light suits Aloe arborescens. They do well in full sunlight. No Aloe will thrive if permanently placed at a distance from a window. Temperature: Aloe arborescens grow well in normal room temperatures and are tolerant of dry air. To encourage flowering, however, it is best to give the plants a short winter rest at a temperature of no more that 10°C (50°F). Water: During the active growth period water plentifully as often as necessary to keep the potting mixture thoroughly moist. During the rest period water only enough to prevent the mixture from drying out. Feeding: Apply standard liquid fertiliser every two weeks during the active growth period. Potting and repotting: Use a soil based potting mixture. Aloe arborescens should be moved into one size larger pot every spring. When maximum convenient pot size has been reached, plants should be top-dressed with fresh potting mixture once a year. Propagation: Offsets can be taken from the base of the plant in early summer. These small new rosettes are often attached to the parent by a short underground stolon and may already have little roots, which should be retained for propagation purposes. Because very tiny offsets are hard to root, they should not be removed for planting until their leaves have begun to open into the characteristic rosette shape. Plants that have a rosette of leaves on a long stem are likely to produce additional small rosettes low down on the stem and these root more easily than the rosettes which are higher up. Offsets will root in two or three weeks in the standard potting mixture is some coarse sand is sprinkled at the base of the rosette to prevent rotting. Until offsets are well established, they should have bright light without direct sunlight and they should be watered sparingly, only enough to moisten the potting mixture, allowing the top two-thirds of the mixture to drying out between waterings. Problems: Melly bugs and root mealy bugs can be troublesome. The former hide deep in the crevices of the rosette foliage and the latter generally bury themselves in the roots, just below the surface of the potting mixture. Treatment: Use an insecticide soap or make one from dish detergent (free of perfumes and additives if it is possible) mixed in a week concentration with water and spay the plants. After treatment washing the plant is recommended. Alternatively, use an adequate pesticide. Repeat the treatment if necessary. Uses: Grown in containers, Aloe arborescens make a remarkable houseplant or installed on porches, patios, decks, etc. [图片]SUMMARY: CHARACTERISTICS: Foliage – green Features – flowers Shape – rosette Height: 1.8-2.4m (6-8 feet) Wide: 1.2m (4 feet) PROPER CARE: Watering in rest period – sparingly Watering in active growth period – plentifully Light – direct Temperature in rest period – min 7°C max 10°C (45-50°F) Temperature in active growth period – min 16°C max 24°C (61-75°F) Humidity – Low Hardiness zones: 9b-11

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Miss Chen

2021年06月07日

Distribution and habitat: Crassula ovata is native to South Africa where it grows on rocky hillsides under the blazing sun. Rain there is infrequent and usually occurs during the winter months. Consequently, Crassula ovata plants flower during the late winter. In addition with its adaptation of reducing the water loss, having succulent water-storing stems, leaves and swollen roots that give it the ability to survive droughts, Crassula ovata can also survive being grazed, trodden on or knocked over, as it is able to root from any piece of stem or even from a single leaf. [图片]Description: Crassula ovata is a large well-branched, compact, rounded, evergreen shrub 1-3m (3-10 feet) tall with glossy, dark grey-green, oval, succulent leaves and rounded heads of pink flowers in winter-spring. The stem is stout and gnarled and gives the impression of great age and its branches are also short and stubby, but well-proportioned. Branches are succulent, grey-green in colour and in older specimens the bark peels in horizontal brownish strips. Trunks to 15cm (6 inch) in diameter can develop on older plants. The leaves are 3-9cm (1-3.5 inch) long and 2-4cm (0.8-1.5 inch) wide, egg-shaped to elliptic, often with a red margin and a somewhat pointed end. They are in opposite pairs, the one pair arranged at right angles to the next, and they are clustered towards the ends of the branches, but they may grow for many years without blooming. When flowers appear, the bush is covered in masses of sweetly scented, pretty pale-pink, star-shaped flowers in tight rounded bunches during the cool winter months. The flowers develop into small capsules, each holding many tiny seeds. Houseplant care: Crassula ovata plants make an ideal house plant as they can cope with dry conditions and can survive being neglected. Cleanliness is important for the health and good appearance of the plant. All dead leaves and stems should be removed. Clean the leaves of the plant monthly using room temperature water. Do not use leaf shiners or oils to clean the leaves of Crassula ovata. Light: Crassula ovata plants need bright light with some direct sun light. A sunny windowsill will be an ideal position for these plants. They will not flower without sunlight and inadequate light will cause developing spindly growth. Temperature: Crassula ovata plants grow well in warm position during the active growing period, but they need cool temperatures during winter rest period when they should not be subjected to temperatures above 12°C (54°F) and they can tolerate temperatures down to 7°C (45°F). Give ventilation in summer and stand outside when conditions are favourable for Crassula ovata plants – enough hot and sunny. Watering: Water regularly and thoroughly during the spring and summer, but avoid overwatering; allow two-thirds of the potting mixture to dry out in between waterings. Little and often is the watering rule for these plants. Keep on the dry side in winter, particularly when conditions are cool; the leaves will have stored a good deal of the previous summer moisture and will be in little danger of suffering from dehydration. Feeding: Give very week liquid fertiliser once a fortnight during the spring and summer. Do not fertilise during the rest period. Potting and repotting: Use a mixture of three parts of soil based potting mixture to one part coarse sand or perlite. Crassula ovata should be moved into pots one size larger only once every two years. It will require a maximum pot or small tub size of 20 or 25cm (8-10 inch). At this point, top-dress the plant each spring with fresh potting mixture. Shallow pots are best for these plants. These plants tend to have shallow root systems and often become top heavy. In such cases, use heavy clay pots. To maintain a plant at about the same size, treat in a similar way to a bonsai tree. Prune the roots when re-potting into the same size pot and cut back the stems to maintain a pleasing shape. This will help to develop a thick main trunk. Prune back to just above the rings on the stems where the old leaves were located. New leaves will grow from these locations. Gardening: Crassula ovata is easy plant to grow. It comes from a frost-free environment, but it should tolerate a winter minimum of -1° C (30°F) when it is planted in ground. However, it is best protected from frost to prevent the flowers from being damaged. Location: Crassula ovata thrives in full sun or semi-shade, but will flower best in a sunny position. To induce a potted specimen to flower, move it into a sunny or brightly lit position during summer and autumn – but if it has been in a cool low-light spot remember to introduce it to stronger light gradually or the leaves will be scorched. Soil: While growth is very slow, Crassula ovata is extremely tolerant of poor, dry soil. It grows in normal loam soil with good drainage. Fast draining soil is necessary to avoid root rot of these plants. Irrigation: Crassula ovata plants should be well watered and allowed to dry thoroughly before watering again. Do not to overwater these plants. They are tolerant of drought, wind and coastal conditions. Crassula ovata will tolerate periods of drought effortlessly, but will soon rot if left to stand in wet soil. During the winter months, plants are watered only enough to prevent the leaves from shriveling. Fertilise: Mild liquid fertiliser used at monthly intervals during the active growing period will be provide adequate fertility. Do not fertilise during the winter. Propagation: Individual leaves of Crassula ovata will root readily in the recommended sandy potting mixture if kept in warm room in a position where they can get bright filtered light, but more satisfactory way to propagate in by 5-8cm (2-3 inch) long stem cuttings or basal offsets. The cuttings or offsets should be taken in spring. Plant it in a 5-8cm (2-3 inch) pot of equal parts mixture of peat moss and sand and keep it at normal room temperature in bright filtered light. Water the cuttings or the offsets moderately, just enough to make the potting mixture thoroughly moist and allow the top couple of centimetres of the potting mixture to dry out between waterings. Give it some standard liquid fertiliser about once a month. When the cuttings are well rooted – in about three months – move the young plant into a one size larger pot of recommended potting mixture and treat it as a mature plant. Problems: Rotting at the base together with wilting of the plant top is probably due to overwatering or to poor drainage. Brown shriveled patches on leaves indicate inadequate watering. Crassula ovata is sometimes attacked by mealybugs. Treatment: Use a suitable pesticide for Crassula ovata as these succulents are sensitive to certain insecticides. Before using a spray insecticides make sure that the product used is labeled for jade plants. Notes: The genus Crassula is one of the most diverse succulent genera, varying from tiny moss-like annual plants to 3m (10 feet) tall succulent ‘trees’ like Crassula ovata. There are more than 300 Crassula species of which approximate 150 are found in southern Africa where they are widespread, but concentrated in the semi-arid winter-rainfall areas. The centre of distribution of this genus is in southern Africa, but they extend beyond Africa into Europe, America, Australia, New Zealand and the southern islands. Recommended varieties: Crassula ovata ‘Convoluta Gollum’ (= Crassula ovata ‘Gollum’) (Gollum Jade, Trumpet Jade, ET’s Fingers) has tubular leaves, trumpet shaped, each of them tipped with a suction cup, 4-ranked (decussate), smooth, deep glossy green in color with very light spotting usually with bright red leaf margins; the new growth is reddish. It is a small sparingly branched, shrubby, erect, succulent, that can slowly grow up to 50-80cm tall by 30-60cm (12-24 inch) wide. Crassula ovata ‘Convoluta Hobbit’ (= Crassula ovata ‘Hobbit’) (Hobbit’s Pipe Jade, Hobbit Jade) has leaves that are nearly tubular and curled back around. Crassula ovata ‘Minor’ (Crassula ovata ‘Minima’) is a dwarf has glossy green thick fleshy leaves with reddish edges. The trunk and branches on this plant are thick.It will grow to maximum height of 50 to 75cm (20-30 inch) with a with of 25 to 50cm (10-20 inch). Uses and display: Crassula ovata is a wonderful sculptural plant for pots, tubs, rockeries, retaining walls and gravel gardens and is the ideal plant for a water-wise garden. It can also be grown in pots indoors. It have long been used in containers where they will live for years in root-bound conditions but can also be used as specimen or hedge plantings outdoors in full sun, part sun or deep shade. In the Far East, Germany and the USA it is traditionally grown in square porcelain tubs with ‘lion feet’ to bring good financial luck and has attracted more common names including the Money Tree, Penny Plant, Dollar Plant and Tree of Happiness. [图片]SUMMARY: CHARACTERISTICS: Foliage – green Shape – uprighth Height: 1-3m (3-10 feet) PROPER CARE: Watering in rest period – sparingly Watering in active growth period – plentifully Light – bright Temperature in rest period – min 7C max 13C Temperature in active growth period – min 16C max 24C Humidity – low Hardiness zone: 9a-11

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Miss Chen

2021年06月07日

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Miss Chen

2021年06月04日

Distribution and habitat: Crassula ovata is native to South Africa where it grows on rocky hillsides under the blazing sun. Rain there is infrequent and usually occurs during the winter months. Consequently, Crassula ovata plants flower during the late winter. In addition with its adaptation of reducing the water loss, having succulent water-storing stems, leaves and swollen roots that give it the ability to survive droughts, Crassula ovata can also survive being grazed, trodden on or knocked over, as it is able to root from any piece of stem or even from a single leaf. [图片]Description: Crassula ovata is a large well-branched, compact, rounded, evergreen shrub 1-3m (3-10 feet) tall with glossy, dark grey-green, oval, succulent leaves and rounded heads of pink flowers in winter-spring. The stem is stout and gnarled and gives the impression of great age and its branches are also short and stubby, but well-proportioned. Branches are succulent, grey-green in colour and in older specimens the bark peels in horizontal brownish strips. Trunks to 15cm (6 inch) in diameter can develop on older plants. The leaves are 3-9cm (1-3.5 inch) long and 2-4cm (0.8-1.5 inch) wide, egg-shaped to elliptic, often with a red margin and a somewhat pointed end. They are in opposite pairs, the one pair arranged at right angles to the next, and they are clustered towards the ends of the branches, but they may grow for many years without blooming. When flowers appear, the bush is covered in masses of sweetly scented, pretty pale-pink, star-shaped flowers in tight rounded bunches during the cool winter months. The flowers develop into small capsules, each holding many tiny seeds. Houseplant care: Crassula ovata plants make an ideal house plant as they can cope with dry conditions and can survive being neglected. Cleanliness is important for the health and good appearance of the plant. All dead leaves and stems should be removed. Clean the leaves of the plant monthly using room temperature water. Do not use leaf shiners or oils to clean the leaves of Crassula ovata. Light: Crassula ovata plants need bright light with some direct sun light. A sunny windowsill will be an ideal position for these plants. They will not flower without sunlight and inadequate light will cause developing spindly growth. Temperature: Crassula ovata plants grow well in warm position during the active growing period, but they need cool temperatures during winter rest period when they should not be subjected to temperatures above 12°C (54°F) and they can tolerate temperatures down to 7°C (45°F). Give ventilation in summer and stand outside when conditions are favourable for Crassula ovata plants – enough hot and sunny. Watering: Water regularly and thoroughly during the spring and summer, but avoid overwatering; allow two-thirds of the potting mixture to dry out in between waterings. Little and often is the watering rule for these plants. Keep on the dry side in winter, particularly when conditions are cool; the leaves will have stored a good deal of the previous summer moisture and will be in little danger of suffering from dehydration. Feeding: Give very week liquid fertiliser once a fortnight during the spring and summer. Do not fertilise during the rest period. Potting and repotting: Use a mixture of three parts of soil based potting mixture to one part coarse sand or perlite. Crassula ovata should be moved into pots one size larger only once every two years. It will require a maximum pot or small tub size of 20 or 25cm (8-10 inch). At this point, top-dress the plant each spring with fresh potting mixture. Shallow pots are best for these plants. These plants tend to have shallow root systems and often become top heavy. In such cases, use heavy clay pots. To maintain a plant at about the same size, treat in a similar way to a bonsai tree. Prune the roots when re-potting into the same size pot and cut back the stems to maintain a pleasing shape. This will help to develop a thick main trunk. Prune back to just above the rings on the stems where the old leaves were located. New leaves will grow from these locations. Gardening: Crassula ovata is easy plant to grow. It comes from a frost-free environment, but it should tolerate a winter minimum of -1° C (30°F) when it is planted in ground. However, it is best protected from frost to prevent the flowers from being damaged. Location: Crassula ovata thrives in full sun or semi-shade, but will flower best in a sunny position. To induce a potted specimen to flower, move it into a sunny or brightly lit position during summer and autumn – but if it has been in a cool low-light spot remember to introduce it to stronger light gradually or the leaves will be scorched. Soil: While growth is very slow, Crassula ovata is extremely tolerant of poor, dry soil. It grows in normal loam soil with good drainage. Fast draining soil is necessary to avoid root rot of these plants. Irrigation: Crassula ovata plants should be well watered and allowed to dry thoroughly before watering again. Do not to overwater these plants. They are tolerant of drought, wind and coastal conditions. Crassula ovata will tolerate periods of drought effortlessly, but will soon rot if left to stand in wet soil. During the winter months, plants are watered only enough to prevent the leaves from shriveling. Fertilise: Mild liquid fertiliser used at monthly intervals during the active growing period will be provide adequate fertility. Do not fertilise during the winter. Propagation: Individual leaves of Crassula ovata will root readily in the recommended sandy potting mixture if kept in warm room in a position where they can get bright filtered light, but more satisfactory way to propagate in by 5-8cm (2-3 inch) long stem cuttings or basal offsets. The cuttings or offsets should be taken in spring. Plant it in a 5-8cm (2-3 inch) pot of equal parts mixture of peat moss and sand and keep it at normal room temperature in bright filtered light. Water the cuttings or the offsets moderately, just enough to make the potting mixture thoroughly moist and allow the top couple of centimetres of the potting mixture to dry out between waterings. Give it some standard liquid fertiliser about once a month. When the cuttings are well rooted – in about three months – move the young plant into a one size larger pot of recommended potting mixture and treat it as a mature plant. Problems: Rotting at the base together with wilting of the plant top is probably due to overwatering or to poor drainage. Brown shriveled patches on leaves indicate inadequate watering. Crassula ovata is sometimes attacked by mealybugs. Treatment: Use a suitable pesticide for Crassula ovata as these succulents are sensitive to certain insecticides. Before using a spray insecticides make sure that the product used is labeled for jade plants. Notes: The genus Crassula is one of the most diverse succulent genera, varying from tiny moss-like annual plants to 3m (10 feet) tall succulent ‘trees’ like Crassula ovata. There are more than 300 Crassula species of which approximate 150 are found in southern Africa where they are widespread, but concentrated in the semi-arid winter-rainfall areas. The centre of distribution of this genus is in southern Africa, but they extend beyond Africa into Europe, America, Australia, New Zealand and the southern islands. Recommended varieties: Crassula ovata ‘Convoluta Gollum’ (= Crassula ovata ‘Gollum’) (Gollum Jade, Trumpet Jade, ET’s Fingers) has tubular leaves, trumpet shaped, each of them tipped with a suction cup, 4-ranked (decussate), smooth, deep glossy green in color with very light spotting usually with bright red leaf margins; the new growth is reddish. It is a small sparingly branched, shrubby, erect, succulent, that can slowly grow up to 50-80cm tall by 30-60cm (12-24 inch) wide. Crassula ovata ‘Convoluta Hobbit’ (= Crassula ovata ‘Hobbit’) (Hobbit’s Pipe Jade, Hobbit Jade) has leaves that are nearly tubular and curled back around. Crassula ovata ‘Minor’ (Crassula ovata ‘Minima’) is a dwarf has glossy green thick fleshy leaves with reddish edges. The trunk and branches on this plant are thick.It will grow to maximum height of 50 to 75cm (20-30 inch) with a with of 25 to 50cm (10-20 inch). Uses and display: Crassula ovata is a wonderful sculptural plant for pots, tubs, rockeries, retaining walls and gravel gardens and is the ideal plant for a water-wise garden. It can also be grown in pots indoors. It have long been used in containers where they will live for years in root-bound conditions but can also be used as specimen or hedge plantings outdoors in full sun, part sun or deep shade. In the Far East, Germany and the USA it is traditionally grown in square porcelain tubs with ‘lion feet’ to bring good financial luck and has attracted more common names including the Money Tree, Penny Plant, Dollar Plant and Tree of Happiness. [图片]SUMMARY: CHARACTERISTICS: Foliage – green Shape – uprighth Height: 1-3m (3-10 feet) PROPER CARE: Watering in rest period – sparingly Watering in active growth period – plentifully Light – bright Temperature in rest period – min 7C max 13C Temperature in active growth period – min 16C max 24C Humidity – low Hardiness zone: 9a-11

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Miss Chen

2021年06月02日

Distribution and habitat: Aloe aristata is a species of evergreen flowering perennial plant in the subfamily Asphodelaceae. It is native to mountains grassland of South Africa and is therefore best suited to warm, dry conditions. These plants can be found growing up to 2300m (7500 feet) above sea level in their natural habitat and is one of the hardest species within its genus. They have become increasingly rare in the wild through harvesting. Description: Aloe aristata is a dwarf version of the Aloe genus. It is stemless with dark grey-green leaves densely packed in a rosette. Each leaf is about 15cm (6 inch) long and 2cm (0.8 inch) wide, spotted with tubercles. The margins of the leaves are lined with white horny materials and both the margins and the surfaces of the leaves are minutely toothed with short, soft white spines. and has hard white edges and a bristle like growth from the leaf tip. Orange flowers, which appear on a 30cm (12 inch) stalk in early summer, lasting for several days. Mature plants produce many offsets. Its fleshy leaves retain water allowing the plant to get through periods of drought without trouble. It is a small plant, usually growing to about 15 to 20cm (6-8 inch) in a tight rosette formation. Its nectar-rich, tubular orange flowers attract birds and bees. [图片]Houseplant care: Aloe aristata is a small hardy succulent plant popular as an indoor plant. Light: Bright light suits Aloe aristata. It will not thrive if permanently placed at a distance from a window. Temperature: Aloe aristata plants grow well in normal room temperatures and are tolerant of dry air. To encourage flowering, however, it is best to give the plants a short winter rest at a temperature of no more that 10°C (50°F). Watering: During the active growth period water plentifully as often as necessary to keep the potting mixture thoroughly moist. During the rest period water only enough to prevent the potting mixture from drying out. Do not permit water to collect in the tight rosette. Feeding: Apply standard liquid fertiliser every two weeks during the active growth period. Potting and repotting: Use a soil based potting mixture. Most Aloe aristata should be moved into pots one size larger every spring. Keep these plants in shallow pots. When maximum convenient pot size has been reached, plants should be top dressed with fresh potting mixture once a year. To prevent rot, make sure that these plants which have tick basal leaves are never buried deeper than they were before. A sprinkling of coarse sand over the surface of the potting mixture helps to prevent rot points where fleshy leaves of these stemless plants touch the soil. Gardening: In order to grow Aloe aristata in temperate climates they will need to be taken inside during the coldest weather and keep them in bright sunlight during the summer. This species is hardier than many other species within its genus, but will still appreciate the warmth. It requires very little maintenance, making it an ideal choice for novice gardeners.They flower freely in the summer and the soft-orange flowers are a wonderful addition to the arid garden. Location: Aloe aristata can be place in full sun or semi-shade in hot climates. Soil: Dry and well drained gritty soils are suitable for these plants. Sandy free draining soil will keep the Aloe aristata healthy. Use cactus compost or add sand to improve the garden soil drainage. Irrigation: This genus is well known for its ease of cultivation, but they are sensitive to excessive irrigation. Provide regular watering in spring and summer to make the soil thoroughly moist then allow the soil to dry before watering again. In winter (during the dormant season) water sparingly or not at all, as it is prone to rotting; a thin layer of gravel on top of the soil will help to prevent this. Fertilising: Feed Aloe aristata very little now and then during the active growth period. Propagation: Aloe aristata produces offsets that can be taken from the base of a plant early in summer. These small new rosettes are often attached to the parent by a short underground stolon and may already have little roots, which should be retained for propagation propose. Because very tiny offsets are hard to root, they should not be removed for planting until their leaves have begun to open into the characteristic rosette shape. Offsets will root in two to three weeks in the standard potting mixture if some coarse sand is sprinkled at the base of the rosette to prevent rotting. Until offsets are well established, they should be provided with bright light without direct sunlight and they should be watered only enough to moisten the potting mixture, allowing the top two-thirds of the potting mixture to dry out between waterings. Also, Aloe aristata can be propagated by seed sown in warm environment as soon as ripe. Problems: Most likely to be caused by incorrect watering. A properly watered Aloe aristata plant can resist most pests and diseases. Wilting is the result of inadequate water in summer. Yellowing leaves accompanied by rotting at the base is the result of overwatering plants kept in cool winter conditions. Mealy bugs and root mealy bugs ca be troublesome. The former hide deep in the crevices of rosette foliage and the latter generally bury themselves in the roots, just below the surface of the potting mixture. Treatment: Remove visible bugs with a toothpick or a damp cloth or swab them off foliage with a small, stiff paintbrush dipped in methylated spirit or an insecticide solution. Then spray all top growth with an appropriate pesticide. Alternatively, place granules of a systemic pesticide in the potting mixture. During the next month examine plants weekly for traces of reinfestation. [图片]Scale insects can also infest this plant. Treatment: Scale can be easily controlled by physical removal, wash off with high pressure jet of water or scrape off with cotton wool buds or by chemical control with appropriate pesticide. Note: When not in bloom, Aloe aristata is similar to and often confused with Haworthia fasciata. Uses: Aloe aristata is cultivated as a garden plant, but as it requires winter protection is grown under glass in temperate regions. Left to grow by themselves, they quickly form a large clump and are very effective in a large xeriphytic landscape if planted en masse about 0.5m (2 feet) apart, so that as the clumps grow and spread they form an expansive globular carpet. Also, Aloe aristata is often grown indoors as a window-ledge succulent plant. SUMMARY: CHARACTERISTICS: Foliage – variegated Features – flowers Shape – rosette Height: 15 to 20cm (6-8 inch) PROPER CARE: Watering in rest period – sparingly Watering in active growth period – plentifully Light – bright filtered Temperature in rest period – min 7°C max 10°C (45-50°F) Temperature in active growth period – min 16°C max 24°C (61-75°F) Humidity – low Hardiness zone: 7b-11

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Miss Chen

2021年06月01日

Use of plant rooting hormones with other growing agents To save time, sometimes growers want to apply the rooting solution with a water based fungicide, or other growing agents, together. Selected rates for each product is used. Hortus USA does not recommend mixing Hortus IBA Water Soluble Salts solutions with other plant growth agents. There are many compatibility variables. The grower assumes all responsibility for mixing; evaluation trials must be made on small lots before any production lots are treated. The method of application determines where the solution acts on the plant cuttings. Basal applications only are to the basal area; the cutting basal end is then stuck below the soil level. Foliar spray drip down application is done after the cuttings have been stuck in media; the solution only reaches the portion of the cutting above the media. Foliar total immerse application has the solution reach all parts of the cutting. Consideration should be made which parts of the cutting are intended to be treated. [图片]Media When propagating plants from cuttings consideration of individual plant needs relative to the media selected. Some requirements for media selection are pH, the need for water retention, and the absolute necessity of air oxygen to the cuttings. Pond or bog plant cuttings need a media that retains large amounts of water. Succulent plant cuttings need media that allows air flow while retaining little amounts of water. Most terrestrial plant cuttings from woody plants, annual or perennials need different types of media. Media selection will allow needed oxygen to reach the cuttings. Cleanliness, sometimes sterilization, is essential to avoid pathogen introduction to the cuttings. Media combinations, with sand or pearlite, promote air getting to the cuttings.. Control the temperature Temperature influences the speed to root cuttings. Higher temperature produces faster effect. If possible keep the temperature between 65-70F. High temperature accelerates fungus and bacterial growth above 70F. High temperature of the ambient air stimulates the growth of shoots at the expense of roots. Keep the air temperature lower than the soil temperature. Control the light After Rhizopon AA or Hortus IBA Water Soluble Salt treatment and planting in media the cuttings need light and water. For cuttings with leaves light is required for photo-synthesis to develop natural foods in the form of carbohydrates. Provide shade on bright, hot days to avoid scalding the cuttings. Cuttings without leaves do not require light for rooting; they depend upon stored carbohydrates. Control the humidity To prevent the cuttings from dehydrating through the leaves and stems the cuttings are often propagated under mist systems in controlled greenhouses or tunnels, in cutting trays covered with plastic. [图片]Control hardening off After root initiation harden off slowly by reducing the temperature and humidity. Frequently observe the growing environment and take action to assure that there are no fungus, insects, pathogens, etc. After the cuttings are rooted control the environment to bring the temperature and humidity to the ambient level. Control the carbon dioxide Maintain the carbon dioxide at about 1000 ppm. Testing is essential The condition of the cuttings or the rooted plant and the resultant rooting potency varies from season to season. Check the results regularly. Adjust the dosage, timing and method of application of Rhizopon AA or Hortus IBA Water Soluble Salt rooting products and other propagation materials. Fluctuation in the climate of the propagation area, varying light intensity, humidity, wetness of the media, type of media, frequency of watering, fungus growth, insect infestation, etc., will affect results. Carrying out a few tests will not take much time. The tests will keep you up to date with results. Tests go along with your normal growing operations and allow you to make timely corrective actions.

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Miss Chen

2021年05月31日

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Miss Chen

2021年05月28日

Distribution and habitat: Haworthia is a genus of small succulent plants endemic to Southern Africa. Like the Aloes, they are members of the subfamily Asphodeloideae and they generally resemble miniature aloes, except in their flowers, which are characteristic in appearance. They are popular garden and container plants. Haworthia pumila occurs in a winter rainfall area, which experiences mild frost, -2°C (28°F). Summers are hot, up to 44°C (111°F). Rainfall varies from 150mm (6 inch) (Worcester area) to 350mm (14 inch) (Montagu area). Haworthia pumila is not an endangered plant. Description: Haworthia pumila is one of the most impressive and eventually large species of the genus. Haworthia pumila has triangular, rather tough, dark green leaves thickly spotted with pearly white warts. Stems are very short and the many leaved rosettes, which can attain a diameter of 15cm (6 inch) and a height of 7-10cm (3-4 inch), appears to be stemless. A cluster of rosettes form quickly (within about a year). The lower, older leaves of each rosette stand erect, but younger ones toward of the rosette centre curve inward. The 7mm (0.3 inch) thick leaves are about 9cm (3 inch) long and 3cm (1 inch) wide at the base. Leaf upper surfaces are flat, while the undersides are keeled toward the tips. The flowers are somewhat larger than in other species, greenish to brownish-white in colour and waxy in texture (usually Haworthia flowers are white, but not in this case). The booming season is early summer and seed ripens in autumn. Houseplant care: Haworthia pumila are classified as succulent – which means that they can cope with relatively harsh waterless hot environments. They are however not frost hardy, which means that for cultivation they need over the winter season either a sunny windowsill or preferably a greenhouse. They are relatively slow-growing plants that offsets to form small clusters with time. Light: Never place Haworthia pumila in direct sunlight. If exposed to summer sun, foliage will shrivel. Medium light suits this plant at all times. When the plants are provided with enough light, than the white tubercles from the leaves became more attractive. It is recommended to move these house plants outdoors for the summer months. Place them in light shaded area, but out of direct sun which can scorch its leaves. Temperature: Normal room temperatures 18-24°C (65-75°F) spring through fall. They have a rest period from mid-winter to late spring and can survive temperatures down to 4-5°C (39-41°F). In winter, if possible, keep Haworthia pumila cooler – around 15°C (59°F) is the optimum winter temperature for this plant. Water: During the active growth period water moderately, enough to make the potting mixture moist throughout but allowing the top centimeter (0.4 inch) or so to dry out between waterings. During the rest period water only enough to prevent the potting mixture from drying out completely. Never let the potting mixture become completely dry, however. Although Haworthia pumila are succulent plants, they cannot survive total drought. Feeding: It is neither necessary nor advisable to feed Haworthia pumila . Longevity: Haworthia pumila plants live for about 30 to 40 years if they are cultivated properly. Potting and repotting: Use a porous potting mixture composed of one part of coarse sand or perlite to two parts of standard soil-based mixture. Since Haworthia pumila plants are shallow rooted, half-pots are best suited to the clustering habit of the plants. In potting a specimen always leave a 4-5cm (1.5-2 inch) space between the edges of the cluster and the rim of the pot to allow room for new growth. Repot in spring at the start of the growth period. After pulling or cutting off any dead or shriveled leaves, move each plant into a larger pot only if the rosette cluster covers the entire surface of the potting mixture. The largest pot size needed will be 12-15cm (5-6 inch). A plant that has grown beyond that size should be split up. Gardening: Although the plant will survive mild frost if kept dry – hardy as low -2°C (28°F) – it should be protected from severe cold and prolonged frost conditions. Position: Haworthia pumila requires light shade to bright light, protected from strong midday sun. In shade the body colour will remain mostly green, while full sun will darken it and give it red/brown body colour. The amount of sunlight it can withstand without scorching depends upon the how hot it becomes in the summer in the locale in which it is planted. It will have more colour if it receives more light. During the spring it may be able to take full sun until the heat arrives at the end of spring. In an area that has hot afternoon sun, it may be able to take full morning sun, but requires afternoon shade or afternoon light shade. Can be sunburned if moved from shade/greenhouse into full sun too quickly. Soil: Haworthia pumila are tolerant of a wide range of soils and habitats, but prefer a very porous potting mix to increase drainage. A non-acid soil is ideal. Irrigation: Watering varies depending on the plants position and temperature. Water them frequently when it is warm and dry (but not at the very peak of the heat- they seem to go through a period of summer dormancy at this time) and less to not at all in winter when it is cold. However, Haworthia pumila plants or pots with succulent plants communities are sitting under the grey skies of winter storms and get a lot of rainwater at a time when they are probably mostly dormant. It seems that it is not be a problem for these plants. Individual plants in smaller pots demand more attention. Water ideally when soil is getting dry and not if wet. When in doubt, best to skip watering as too much is worse than too little. Some pots dry out faster than others, too (if glazed, unglazed terracotta, metal, glass etc – all dry out at different rates). Fertilising: Do NOT fertilize newly potted plants for the first year. After that, fertilize once in spring, once in fall with diluted fertiliser at half the recommended strength. Avoid summer fertilizing as plant is in a short rest period. Propagation: Remove the offsets in summer; they should pull away easily. Pot up immediately any offset with roots already attached and treat it as a mature plant. Allow an offset without roots to dry for three days, however, then press it into the potting mixture. At this stage it should be possible to treat the new plant as an adult Haworthia pumila. To propagate by leaf cuttings, remove a leaf and let it lie for about one month, giving the wound time to heal. Then lay the leaf on its side with the basal part buried in the soil. This leaf should root within a month or two, and small plants will form at the leaf base. Haworthia pumila grow readily from seed. These plants have a tendency to hybridize so easily, however, that the results are likely to be unpredictable. Haworthia pumila grows relatively slowly from seed and it takes about 5 years for a plant to reach flowering maturity. [图片]Problems: Given correct treatment, this plant is generally trouble free. Stunted growth may indicate mealy bags infestation. Treatment: Occasional watering with systemic insecticides based on Imidacloprid will keep the plants free of mealy bugs. Rot is only a minor problem with Haworthia if the plants are watered and “aired” correctly. Haworthia species can lose their roots periodically. They can rot with too much moisture, especially when there is a sudden temperature drop. Treatment: There are two ways to handle this: 1. Simply leave the plant on its side and when ‘bumps’ which are the new roots start to appear (It may take a few weeks), pot the plant in soil and water normally. Mist it occasionally for encouragement. 2. The second method is more like how it happens in nature and is my preferred method. Be sure the plant is in well-draining soil and water normally. In a month or so, gently tug and feel the roots taking hold–if the roots are not holding, don’t worry. Just put the plant back in the soil and wait a little longer. If the plant has lost its roots and is severely dehydrated at the same time, it may be too far gone to save. But always it is worth a try. When watering, avoid getting the leaves wet. Like other succulents, it is prone to rot if its leaves get too wet. If they are not, fungicides won’t help all that much. Care must be given in watering, keeping them warm and wet while growing and cooler and dry when dormant. Reddish colour can mean many things besides root loss. Many of Haworthia turn red when the temperature drops or when they get too much sunlight. A plant can loose their reddish colour turning in green later as the environment condition are changed. [图片]Uses and display: Haworthia pumila can grow easily on window sills, verandas and in miniature succulent gardens where they are happy to share their habitat with other smaller succulent plants or in outdoor rockeries. Haworthias are small, making them beautiful additions to succulent and cactus dish gardens.

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Miss Chen

2021年05月26日

Plants produce new individuals similar to themselves, which is called reproduction. This is a natural phenomenon that plants reproduce and continue species, and it is also one of the basic characteristics of plant life. There are five main propagation methods of flowers: sowing, cutting, rameting, grafting and layering. 1. Sowing and breeding basic concept The sowing process is as follows: sterilize the soil in the sun, irrigate it with water, sprinkle the seeds evenly on the soil layer, then choose to cover the soil or not cover the leaves according to the size of the seeds, keep the soil moist, but do not accumulate water, move the flowerpot to the place with scattered light in time after the seeds germinate, and apply some liquid fertilizer, so that the seedlings can be transplanted when they have 2 ~ 3 leaves. matters need attention 1. The sowing time of flowers is regular. Generally, open-field annual flowers and woody flowers are sown from March to April in spring, and the daily average temperature is stable at 15℃; open-field biennial flowers are mostly sown from August to September in autumn. The sowing date of greenhouse flowers often depends on the required flowering period. There is no strict seasonal restriction, but it is generally necessary to avoid the coldest and hottest seasons. 2. Flower seeds should absorb enough water before germination, and then they can extend radicle and germinate slowly. In order to meet the temperature, moisture and oxygen conditions required for seed germination, it is best to put the seeds in gauze bags before sowing, soak them in warm water at 40℃ for 24 hours, then spread them out on wet gauze, keep the gauze moist, and then sow them after the radicle of the seeds breaks through the seed coat. 3. Flower seeds are divided into four grades: large, medium, small and fine particles. The grain size of large seeds is above 0.5 cm, medium seeds are 0.2 ~ 0.5 cm, small seeds are 0.1 ~ 0.2 cm, and micro seeds are below 0.1 cm. Whether it is large, medium or small seeds, the sowing depth should be 2 ~ 3 times of the seed diameter. Large seeds can be sown in holes, the depth of which is 23 times of the diameter of the seeds, and the soil is flat with the bed surface after sowing; Medium-sized and small-sized seeds are first removed from the bed surface and then covered with a thin layer of soil; fine-sized seeds do not need to be covered with soil. 2. Cutting propagation basic concept Cutting propagation means taking a part of vegetative organs of a plant, inserting it into loose and wet soil or fine sand, and using its regeneration ability, making it take root and take branches to become a new plant. Cuttage propagation matters need attention 1. As the mother plant of cutting, it is required to have excellent varieties, vigorous growth and no diseases and insect pests, and the growing and aging plants should not be selected as the mother plant of cutting. On the same plant, the cuttings should choose branches whose middle and upper parts are sunny and full, and it is better to have shorter internodes, full bud heads and thick branches and leaves. On the same branch, hardwood cutting should choose the middle and lower parts of branches, because the middle and lower parts store more nutrients, while the tip tissues are often not full. 2. Cutting should be carried out immediately after cutting the sowing strips. Cutting strips such as rose, hibiscus syriacus, and clover, which are cut in late autumn, can be cut well, tied into bundles, buried in flowerpots with wet sand, and placed in a place where the indoor temperature is kept at 0~5℃. Pay attention not to make the sand too dry in winter, and then wait for the early spring of the following year before cutting. Flowers such as Chinese rose can also be cut in plastic shed in winter. Cuttings of succulent plants such as cactus should be dried in a ventilated place for about a week after cutting, and then cut when the cut mouth is slightly dry, otherwise it is easy to rot. Cutting cuttings of Begonia fortunei, oleander, etc., can be soaked in clear water after cutting, and can be directly planted into pots after rooting. For Chinese rose, Milan, etc., dip the lower mouth of cuttings in the injection of vitamin B, and then take it out for a minute or two, so that the liquid medicine can be sucked into cuttings and then inserted into coarse sand. This treatment can promote rooting. 3. After cuttage, management should be strengthened to create good rooting conditions for cuttings. Generally, rooting of flower cuttings requires both soil moisture and air circulation. Cover the cutting pots or beds with a cover made of glass plate or plastic film to keep the temperature and humidity. Small bricks should be placed under the hood to allow air to flow in. In summer and early autumn, the cuttage pots should be placed in shade during the day and in the open air at night; when the temperature is not enough in early, spring, late autumn and winter, they can be placed in warm places or greenhouses, but attention must be paid to the adjustment of temperature and humidity. In the future, according to the rooting speed of cuttings, gradually strengthen the illumination. 3. Branch propagation basic concept Ramet propagation is a method of dividing the sprouting branches, clumping branches, sucking buds and creeping branches of flowers from their mother plants and planting them as independent new plants, which is generally applicable to perennial flowers. The ramet method can be divided into two types: full division method and half division method. division propagation Full division method: dig out all the roots of the mother plants from the soil, and divide them into several small clusters by hand or scissors. Each small cluster can carry 1 ~ 3 branches, with roots at the lower part, and transplant them to other places or flowerpots respectively. After 3 ~ 4 years, it can be divided again. Half-division method: when dividing plants, it is not necessary to dig out all the mother plants, but only dig out the soil around, on both sides or on one side of the mother plants to expose the root system, cut them into small clusters with l3 branches with roots at the lower part, and transplant these small clusters to other places to grow into new plants. matters need attention 1. ramets have a high survival rate because they have complete roots, stems and leaves, but the number of reproduction is limited. This method is commonly used in strong species in tillering ability, such as Chimonanthus praecox, brown bamboo, phoenix-tailed bamboo, peony, peony, orchid, evergreen, Hosta Hosta, etc. In addition, small plants such as chlorophytum and Saxifraga stolonifera, and sucking buds (twigs) produced at the base of Sedum alfredii and Clematis chinensis in pulpy plants can be isolated and planted at any time. 2. Generally, flowers that bloom in early spring should be divided after stopping growing in autumn, and flowers that bloom in summer and autumn should be divided before sprouting in early spring. 4. Grafting and propagation basic concept Grafting is to use a part of the vegetative organs of plants to graft on other plants. Branches used for grafting are called scions, buds used are called grafted buds, grafted plants are called rootstocks, and grafted seedlings are called grafted seedlings. Grafting propagation is a good seed method for propagating clones, which is often used in plum blossom and rose. The principle of grafting survival is that the cambium of two plants with affinity heals at the junction, which makes the catheter and sieve tube communicate with each other to form a new individual. Matters needing attention in grafting propagation 1. Grafting includes several methods, such as branch grafting, bud grafting, butt grafting (peeling off part of cortex of two plants with roots in bananas which are easy to approach in blue phase, and then joining with each other), pith grafting (scion and rootstock heal through pith), root grafting (using root as anvil), etc. However, no matter which method, attention should be paid to the management of temperature, light and water after grafting. 2. It is best to choose different plants which belong to the same genus or the same species as scions for rootstocks, because they have strong affinity, fast graft healing and high survival rate. 3. Rootstocks should have developed roots and strong growth, adapt to the local soil and climate, and have good resistance to pests. 4. Branches with full growth and full buds should be selected for scions. 5. The grafting season varies with different varieties of flowers and trees. For example, bud grafting for clove is mostly carried out in summer, and branch grafting for fuso can be carried out in spring and summer. 5, layering propagation basic concept Sliced propagation is a propagation method in which the branches attached to the mother plant form adventitious roots, and then cut off the mother plant to become a new individual. The layering propagation is mostly used for woody flowers which are easy to take root naturally in stems and internodes, but not easy to take root by cutting. The layering time can be carried out all the year round in warm areas, while it is mostly carried out in spring in the north. When layering propagation layering, in order to interrupt the downward transmission of organic substances (such as sugar, auxin and other substances) from the upper ends of leaves and branches, and make these substances accumulate on the upper parts of branches for use when rooting, ring peeling can be carried out. Applying IBA auxin to girdling site can promote rooting. There are three layering methods: ordinary layering method, soil piling layering method and high branch layering method. 1. The common layering method is mostly used for vine flowers with soft and slender branches, such as Yingchun, Honeysuckle and Lingxiao. When layering, the periphery of the mother plant is bent into an arc shape, the bent protruding part is cut and buried in the soil, and then the bent part is fixed with hooks, and the mother plant can be cut off after it takes root, and then transplanted. 2. The method of stacking soil and layering is suitable for deciduous shrubs with strong tufts and hard branches that are not easy to bend, such as Redwood, Ulmus pumila and Rosa roxburghii. In early summer, the lower part of its branches is peeled for about 1 cm at a distance of about 25 cm from the soil, and then it is cultivated around the mother plant, and the lower part of the whole plant cluster is buried in the soil, and the soil pile is kept moist. After rooting and before sprouting in the next spring, dig the mound, cut the branches from the base to separate the mother plants, and then transplant them separately. 3. High-branch layering method is mostly used for evergreen flowers and trees, such as white orchid, Milan, smiling, etc. Generally, the layering of high branches is carried out in the peak growth season. The well-developed biennial branches are selected and peeled annularly at their proper positions. Then peat soil, mountain mud, moss, etc. are packed in plastic bags, which are used to wrap the branches, pour water through them, and fasten and fix the bags tightly. In the future, pay attention to timely water supply to keep the culture soil moist. After the branches take root, cut off the mother body from the bottom of the bag, remove the wrapped plastic bag, plant it in a pot with soil, and keep it in a cool place. After a large number of new shoots germinate, see you again. The most obvious advantage of layering propagation is that it is easy to survive and can keep the characteristics of original varieties. This method can be used for some varieties that are difficult to reproduce by other propagation methods.

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Miss Chen

2021年05月24日

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