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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Deuterocohnia is a genus of the botanical family Bromeliaceae, subfamily Tillandsioideae, endemic to South America. The genus is named for Ferdinand Julius Cohn, German botanist and bacteriologist.
Plants once described as belonging to the genus Abromeitiella have been reevaluated and reclassified within Deuterocohnia following modern DNA analysis. The genus is comprised of a few generally mat-forming succulents from Argentina and Bolivia. They are rosette-forming terrestrial Bromeliads with heavily spined leaf margins. The flowers, on a short inflorescence, are green and inconspicuous. They do not die after flowering and often rebloom on the same flower spike. The sizes range from the tiny Deuterocohnia brevifolia only a few inches across to huge plants with broad leaves and the size of large Dyckia or Hechtia.
Growing Conditions Light: The plants need full sun to light shade. Water: They are very drought tolerant but do best with average water during spring and summer. Limit water during winter. Soil: Grow your Deuterocohnia in well-drained humus rich soil.
Grower’s Tips Grow your Deuterocohnia in well-drained humus rich soil with added pebbles, perlite, hardwood bark or other material to facilitate drainage. Keep in bright light or part sun and water moderately in spring and summer letting it dry between waterings in the winter. It is probably one of the cold hardiest of the Bromeliads, but detesting winter wet on its foliage, proves difficult to keep outside.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Rhipsalis is a cacti genus with approximately 35 distinct species. One of the most popular varieties is Rhipsalis baccifera, also known as Mistletoe Cactus. This should not be confused with the plant commonly called Christmas Cactus; although they are cousins, they are very different plants and are not classified in the same genus.
While many people think of the prickly plants that are native to the American deserts when they hear the name “cactus“, most Rhipsalis have no needles, and they would not survive the dry soil and bright sun of a desert. Virtually all species are native to the rainforests of South America, the Caribbean, and Central America, leading to their classification as jungle cacti. The difference between the native environments of jungle and desert cacti means that caring for Rhipsalis requires overcoming any pre-conceived notions you might have about what cacti prefer.
Lighting Requirements Rhipsalis does not thrive in direct sunlight. Exposure to afternoon sun can burn the leaves, turn them yellow, or lead to spotting. However, without sufficient sunlight, They will not bloom, and its growth can be stunted. Rhipsalis does best with morning sun and full shade in the afternoon. As Rhipsalis is commonly grown indoors, care must be given to the placement of the plants. They should be kept at least 20 inches (50 cm) away from windows that receive midday or afternoon sun. The glass in the windows can multiply the heat from the sun’s rays, causing sunburned leaves. Keep in mind that in its native environment, Rhipsalis is accustomed to receiving light that has been filtered through dense, overhanging tree branches. Picturing this environment can help you adjust your lighting accordingly.
Watering Rhipsalis is not a drought-resistant plant, so regular watering is essential. Over-watering, however, can cause weak stems and rotted roots. Using a watering can may help you measure the amount of water you are providing. The size of the pot compared to the size of the plant, the humidity levels in the home, and the type of potting soil used can all affect the watering frequency. Rhipsalis seldom needs to be watered more than once a week. Check before watering by pressing your finger into the soil to a depth of half an inch. Postpone watering if the soil is moist. You can also use a moisture meter to help you determine whether it is time to water.
Selecting Pots Rhipsalis does best when planted in clay pots. The advantage of clay pots is that they allow the soil to “breathe” better than other types, helping to dissipate moisture that could rot the plant’s roots. Most varieties of They produce long, hanging leaves that make them ideal hanging plants, so when selecting pots, many people choose styles that can be placed in a metal or macramé plant hanger.
Soil Novices to the world of jungle cacti might prefer purchasing a potting soil made specifically for cacti. Gardeners with experience growing succulents can make their own by combining regular potting soil with sphagnum, coir, orchid bark, or gravel to ensure proper drainage. Most types of Rhipsalis will need to be transplanted every two or three years using fresh potting soil. When repotting, take care not to damage the roots.
Fertilizing Do not feed newly repotted or just-purchased Rhipsalis for 12 months. Rhipsalis does not need feeding until the soil begins to become depleted of nutrients. If feeding is desired, use a diluted, half-strength fertilizer formulated for cacti. Feed monthly only during spring and summer months. Follow the directions provided with the fertilizer to determine the correct quantity, which will be based on plant size, pot size, and other factors.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Soil: Unlike most other cacti Pereskiopsis will put up with a lot of organic material in their soil. Although you should not use a rain forest mix you can and should have a soil mix that is a little more than 75% organic soil. We do this because unlike most other cacti, Pereskiopsis are heavy feeders. They grow far more quickly thanks to their leaves, and their roots are far more reaching. The other 25% should consist of an even mix of perlite, pumice, rock and sand. All of these four provide excellent drainage oxygen flow in the soil. Root rot is common in Pereskiopsis but is easily avoided by adding these.
Light: As with just about every cactus a lack of light will really harm them if you expect growth and continue to water them. You will wait for a long time if you do not have an artificial light source and humidity. Pereskiopsis live in very tropical, wet and humid regions of Central and South America. This is easy to recreate with your grow light and indoor greenhouse set up. But you must be careful to allow air circulation. This is one of the number one killers of cactus and Pereskiopsis in general behind over watering. If you have an indoor greenhouse you can easily do this by opening up the tent for several hours a day and choosing one day a week in which it is open all day. You should have two angles for air circulation to navigate. No artificial fans are need but can be helpful.
Lighting requirements for Pereskiopsis plants are about 10-14 hours of light a day. Find a balance that fits your lifestyle and that of the plants. If they react negatively toward your specifications, make the appropriate changes. If you are just growing them during the summer, most northern states and even portions of Canada can maintain Pereskiopsis outside. The months of June, July and August will be perfect for Pereskiopsis in clay pots. Do not bother watering them and just let the rain take care of them. If you are in the western states which are much drier, just water them when the soil becomes dry. Believe it or not these cacti will be tolerant of regular potting soil in a sunny and warm location with good air circulation.
Water: Unlike most other cacti, Pereskiopsis have the unique property of wanting more water. Don’t make the common mistake though, most cacti would prefer if you watered them more. However the soil, heat and light that you have are probably not enough to accommodate them. Even in their natural habitat, cacti would prefer more water than they receive.
Grower’s Tips Growing Pereskiopsis is not difficult at all. In fact the plant is quite tolerant of many mistakes you might throw at it, but there are some considerations you must take before planting your new grafting stock. Depending on the number you have and how you will want to display them will dictate how they are planted. Another consideration is whether you received them as cuttings or as fully rooted plants. A tray that does not separate the different plants is perfectly acceptable. However to make grafting easier as well as future cuts, it’s best to use a cell that separates the plants, one per cell. This will also make it easy to separate them when you are ready because the roots are very aggressive and will branch out.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Pereskiopsis is the genus name of the family Cactaceae that have characteristics unlike many other cacti. Their name comes from there likeness to the genus Pereskia, also untypical looking cacti with leaves. The species Pereskiopsis spathulata is the most commonly encountered and used by cacti horticulturalists. Pereskiopsis cacti contain glochids and areoles similar to the Opuntia genus.
They often have tropical features unlike many other cacti with their affection towards regular watering and humidity. They are often found throughout South America in a variety of ecosystems, not exclusive to deserts. However, several species are noted to be in Central America including Mexico. Yet their presence is quite rare in these instances. Research suggests that they are a highly primitive form of cacti and may give horticulturalists and botanists clues as to what cacti originally looked like before subsequent evolution.
Pereskiopsis are often grown by cuttings. Seeds are very rare in the wild and are unheard of in cultivation. Getting Pereskiopsis to flower is also quite rare with no clear cut techniques in pollination. Cuttings are taken from plants that are mature but not too woody. Woody plants become far too tough and dangerous to work with. The glochids can also become a real pain if not handled properly. These little cacti spines will lodge into your skin and become a real irritant all day! Keep a pair of long tweezers to hold the Pereskiopsis cuttings and plants, but also a small precision pair for removing the glochids.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
These tropical cacti, often referred to as leaf cacti, are quite unusual and in fact bear many characteristics unlike any other plants in their family. Instead, Pereskia plants often look more like plants from other genera; for instance, they often have large, bright green leaves and long stems, two characteristics uncommon among cacti. There’s also lots of diversity among leaf cacti, in growth habit and preferred treatment.
Nonetheless, Pereskias qualify as cacti because of their spines which develop from aureoles, a distinctive characteristic of the cactus family. They can be divided into Leuenbergerias and Pereskias, and Pereskias are usually found in tropical areas while Leuenbergerias are found farther north. Many of these plants have lovely foliage; for instance, Pereskia grandifolia, which is used by native Brazilians for its medicinal properties, has large pinkish flowers that develop from the end of dense inflorescences. They’re often used as flowering hedges, and those varieties that carry edible fruits, like Pereskia aculeata, are also grown to be eaten. Many plants in the Pereskia genus are rare, and there’s so much diversity within the genus that it’s difficult to generalize these plant’s characteristics, but Pereskia is without a doubt one of the most interesting and unusual genera of cacti.
Growing Conditions Light: Lots of direct sunlight every day; like all cacti, Pereskias will benefit from tons of light exposure. Water: Err on the side of underwatering rather than overwatering. They can be watered fairly infrequently and survive. Temperature: There’s some variance depending on the species’ place of origin, but these are generally tropical plants that require warm temperatures. Soil: Use a typical cactus potting soil that contains some organic material, and make sure their drainage is good to avoid damaging the roots. Fertilizer: Feed regularly with a balanced, water-soluble cactus fertilizer to increase their propensity to bloom.
Propagation These cacti can be propagated fairly easily by taking cuttings. Snip off a piece of about a few inches long, treat with a good rooting hormone, and plant in cactus potting mix. It can take a little while for cacti to root, but they aren’t picky about propagation and should grow easily in a new environment. Remember to keep them in a warm, moist area.
Repotting They like dry conditions and don’t need to be repotted often, but still it’s a good idea to refresh their soil by repotting occasionally. Be careful when repotting any cactus to not get hurt by their sharp spines, and lift the plant from its mix and replace in a new container before backfilling with soil. Do not water for a few weeks after repotting; the plant is still acclimating to its new container.
Grower’s Tips As with many cacti, Pereskias can be almost ignored and still flourish. One of the major advantages that succulents pose as houseplants is their ease, and overwatering or overfeeding them is a bigger danger than neglecting them because it can damage their roots. If you repot them, remember to leave them alone for a brief period so as to avoid overstressing them, and make sure to keep an eye out for common houseplant pests. Many of these cacti can’t really be grown as houseplants anyway due to their shrubby growth habit, and others are very rare, but when you do find out Pereskias can be good in cultivation.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Bowiea volubilis also known as Climbing Onion Plant, is not related to onions or other alliums but is more closely aligned with lilies. It is not an edible plant and can be described as an interesting, but not as pretty, specimen of flora. Bowiea Sea Onion is another name for the plant, which is a succulent plant without any leaves. The plant grows from a bulb which is often outside of the soil. Growing climbing onion as a houseplant will amaze visitors and give all who see it something to ponder.
Bowiea is the genus for the Climbing Onion Plant. These plants are native to Africa and indigenous where soil is poor, moisture is minimal and heat is severe. They grow well in most home interiors provided there is not excessive humidity. The plant itself is a curiosity, with its surface growing bulb and green starry flowers. Climbing Onions grow out of a bulb. The plant has no obvious leaves because the onion-like bulb is comprised of compressed leaf structures. As with any bulb, the onion houses the embryo and holds carbohydrates for continued plant growth.
Climbing Onion plants may grow up to 8 inches (20 cm) across in their native habitat but usually only achieve 4 inches (10 cm) in captivity. They produce offsets or smaller bulbs as the plant matures, which can be divided away from the parent to produce new plants. Slender stems sprout from the bulbs and branch out into feathery flower stalks. Numerous tiny 6 pointed starry white to green blooms appear along the stems.
Growing Conditions The best medium for growing Climbing Onion is a gritty, well-draining soil mixture. If you wish to make your own mixture, combine half potting soil and half sand. Choose a pot with drainage holes, as excess moisture can make the bulb rot. Climbing Onions like to be in a crowded pot, so select one that is just barely larger than the bulb. Place the container in full, but sheltered, sun or partial shade. Excess heat will cause the bulb to callus over and become dormant, while consistent even warmth and moderate moisture will allow the plant to grow all year.
Grower’s Tips Overwatering is a major concern with this plant. Best growth is achieved with moderate and consistent moisture, but never let the plant sit in water and allow the soil to dry out between watering. Stop watering completely when the stalks dry out after blooming in late summer. At this point, you can cut off the spent stems when they begin to dry out and brown. Resume watering when the bulb re-sprouts, generally in fall.
You can move the plant to a sheltered area outside in summer as long as the plant is kept above 50° F (10° C). Supplemental feeding is not a necessary part of climbing onion care. Provide the airy green stems with a support structure or simply allow them to tangle around themselves.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Mesembryanthemums or Mesembs as they are often known, belong to the Aizoaceae family and come mainly from South Africa and Namibia. They occur in both summer and winter rainfall areas and this affects their cultivation needs.
Although the Aizoaceae family has roughly the same number of species as the Cactus family, and although the majority of them are found in a single country (and almost all of them in two countries), it manages a huge diversity of growth habits and climatic conditions. There are alpine summer growers, dead-stick summer dormant species, large shrubs, and single leaf pairs no bigger than your thumbnail. So knowing how to grow them can be something of a challenge.
Mesembs share a few common traits that will be found throughout the family. One is that all are leaf succulents with the frequent habit of recycling resources from older leaves to new growth. They are mostly adapted to relatively predictable rainfall patterns rather than extreme drought and irregular rainfall. Total rainfall may be extremely low, but water is available at least seasonally or through fog and condensation. This leads to or allows plants which are not especially large and sometimes very small, and affects the way they need to be treated in cultivation. Growing Condition
Mesembs require a loam-based compost with the addition of extra drainage material such as horticultural grit or perlite. They all like good light conditions and plenty of ventilation. Some are relatively cold-hardy and can even survive mild winters outside. Most will survive temperatures down to freezing point. There are some Mesembs which begin to grow in the autumn as the temperature drops and the days get shorter. Examples are Conophytum, Manilaria and Mitrophyllum. Because different genera within the Mesemb family have different growing conditions, care mast be taken with watering. Some genera will benefit from a light spray water to prevent shrivelling during their dormant period.
Grower’s Tips The basics of Mesemb care are very simple, with free-draining soil, plenty of sun and ventilation, and regular light watering in the right season. Yet the difficulties are endless, trying to adapt to the Mesembs’ own adaptability and to follow their growth habits in your particular conditions.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Hatiora is a species of cultivated ornamental cactus with commonly known varieties such as Easter Cactus, Whitsun Cactus or Christmas Cactus, depending on its flowering season. These plants are among the most popular varieties of cultivated cactus. Some varieties, such as Drunken Dream, have arched stems and are sold for hanging baskets. It is an epiphytic plant, one that grows mostly on tree trunks in wet and humid regions.
The stems of Hatiora may be leaf-shaped or flat. Depending on the species, it can grow to maximum lengths ranging between 20 inches (50 cm) and 6 feet (1.8 m). The stems are green all year round and are smooth, rather than toothed or scalloped. Funnel-shaped, small flowers that resemble tiny daisies grow at the end of stem segments. These range in colour from yellow, orange, red and pink. In some conditions, Hatiora can flower twice a year. Hatiora grows in the wild in tropical rain forests of south Eastern Brazil, as far south as the state of Parana, along the border with Paraguay. Although it grows mostly on tree trunks, it is sometimes found growing on rocky ground. In the wild, Hatiora bloom in spring and will sometimes flower twice in one year.
Growing Conditions Light: This tropical cacti likes bright partial light only. It should never be exposed to full sunlight or midday sunlight. Water: Soil should be kept constantly moist, but never soggy. Do not allow water to sit in the dish underneath. Temperature: Hatioras prefers spring, summer, and fall temperatures around 75-80 °F (24-27 °C). Winter temperatures should be between 45-65 °F (7-18 °C) only.
Soil: Due to its natural growing environment being on rocks or trees, this cacti requires rough soil to grow well. A 1:1 mixture of potting soil to pumice, tree bark, or perlite is required. Pumice is preferred. Fertilizer: Hatioras prefers fertilization every 14 days. Use a balanced 10-10-10 fertilizer, and dilute to half strength. Do not fertilize during resting period.
Grower’s Tips Hatiora thrives best in indirect light with exposure to morning and evening sun. It prefers a well drained soil. Cactus or epiphytic compost works well. It can be propagated easily through cuttings that can root immediately in soil. Hatiora likes long nights of about 14 hours. Cover the plant with a paper bag to shut out sunlight. Try not to reposition the plant once flower buds appear, as these could fall off during any movement. It needs a month’s rest after flowering, so water sparingly during this period.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
The Hoya plant is known for its thick leaves and a characteristic shape. They are climbing and clambering so they make a very interesting sight in any home. Hoyas are also known as The Hindu Rope or Wax Plant. They are wax-stemmed and produce beautiful flowers. Many people like to grow them in their home, balcony or garden.
These plants have been enjoyed for decades and they are very popular among many home gardeners. Hoyas plant has wheel-like clusters of porcelain or waxy flowers. The flowers typically have stars in their crowns. The flowers often produce unique, enjoyable fragrance. This plant was named in honor of Thomas Hoym, who was a gardener for the Duke of Northumberland. Hoym was the first one who recognized the beauty and uniqueness of this plant and he brought it into prominence.
Hoyas are native to southern India. There, the Hoya plant is highly prized and it’s even a subject of legend. These plants are also commonly found throughout eastern Asia and Australia. There are many species, but it’s not clear how many of them are there exactly. According to the Bailey’s Standard Cyclopedia of Horticulture, there are around 100 species of these plant.
Growing Conditions Light: A north window is a good location. Although the plants do not require direct light, they would not do well away from a window, unless you prefer to grow them under fluorescent grow lights. Supply all but the hottest sun. Water: Keep the soil moist in spring and summer, dry but not to the point of shriveled foliage in winter. In dry climates more frequent watering may be necessary. Some like to mist the leaves frequently, to clean them and increase humidity…but NOT when the plant is budding or in flower. Temperature: Give them medium (50 degrees F/10 degrees C) to warm temperatures during the growing season—spring and summer. The plants go semi-dormant in winter.
Soil: A moist, well-drained, light soil – African Violet soil with some added perlite – is a good growing medium. Fertilizer: In spring Hoyas react favorably to feeding. A liquid food, about every four weeks, three or four times during the growing season will produce a vigorous growth. Withhold food during the winter. Propagation Propagate Hoyas by cuttings of top growth, or by leaf cuttings in the same manner as African Violets and Gloxinias. The average cutting or leaf start will produce a blooming plant in two years or less. The easiest method of propagation is by layering. Layers mature faster and do not need as much patience. Pin down a stem, at the joint, in a moist rooting medium. Sever and pot the new plant when roots have formed.
Grower’s Tips Hoya plants don’t ask for much, beyond the well-draining soil and the warm humid conditions that many tropical flowers crave. They don’t like wet feet or heavy soil, and as many grow as epiphytes in nature (similar to bromeliads and orchids). Give them at least a half day of sunshine, and bring them indoors when temperatures drop below 50 degrees F (10 degrees C). When your Hoyas finishes blooming, leave the flower stalk, as it may produce new flowers. Removing the stalk forces the plant to produce a new stalk, which delays blooming and wastes the plant’s energy. They are light feeders, and a monthly drink of compost tea or dilute fish emulsion provides all the nutrition these tropicals need. Hoyas like the security of a snug pot, and plants that are a bit root bound will flower more prolifically than those that are swimming around in a giant pot.
Design Tips Place your Hoya plant in a hanging basket where you can admire it from your favorite seat on the deck or porch. Hoyas will cling to a small trellis, providing a vertical accent in your tropical container garden. A Hoya plant would appreciate the humid conditions alongside any pond, fountain, or other water feature in your landscape.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Salicornia europaea, known as Common Glasswort or just Glasswort, is a halophytic annual dicot flowering in August to October. It flowers in groups of three. Glasswort is found in Africa, Europe and North America. Within the saltmarsh it can be found in low marsh and in depressions, salt pans and open creek sides. It is edible, either cooked or raw.
The plant is at its best for eating in late summer. The stems are very succulent, but have a thin woody core that is easily removed. Its leaves stick out as small protrusions from the main stem. They are best harvested when about 6 inches (15 cm) long, the top 4 inches (10 cm) being used leaving the bottom 2 inches (5 cm) to produce new shoots. The edible leaves are occasionally sold in local markets.
Growing Conditions Light: Prefers sunny position. Grow it in a container on you window sill or in the open ground. Water: Best watered with a saline solution (1 teaspoon of proper sea salt in a pint of water). Temperature: Give them medium (50 degrees F/10 degrees C) to warm temperatures during the growing season—spring and summer. The plants go semi-dormant in winter.
Soil: Light sandy soil (or well drained). Grower’s Tips Glasswort prefers a rich organic soil with ample nitrogen and regular watering. This species is little, if at all, cultivated and its exact requirements are not clearly understood. It is not known if the plant will require periodic inundation by salty water to grow well. Glasswort is difficult to grow in cultivation, it can succeed in gardens if sown as soon as the seed is ripe in the autumn in a well-drained soil. A very variable plant both in size and the number of branches produced – a number of subspecies are recognised. The best forms for food production are bushy plants up to 16 inches (40 cm) tall with an upright habit that keeps the branches out of the mud.
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