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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Aptenia is a small genus of flowering plants in the family Aizoaceae. They are native to southern Africa. These are succulent subshrubs growing from a system of fibrous, often fleshy roots. The stems lie prostrate on the ground or may climb. The stem bases are woody, and the stems are green. The leaves are mostly oppositely arranged, but those near the inflorescences may be alternate. The leaf blades are flat, hairless, sometimes waxy, and usually heart-shaped, or occasionally lance-shaped. Flowers are solitary or grow in small, whorled clusters, usually in the leaf axils along the stem. The flower is about 0.4 inch (1 cm) wide. There are two large sepals and two smaller. The corolla contains many narrow petals in shades of pink, purple, yellow, or white, and several staminodes that look very much like the petals. The many fertile stamens at the center are white or yellow. The fruit is a capsule with four valves.
Growing Conditions and General Care Water Aptenia only when the soil is completely dry, and then provide enough to drench the soil to a depth of about 6 inches (15 cm). To check for dryness, poke your finger into the soil. Never water if the soil feels damp or cool, as Aptenia, like all succulents, is prone to rot in soggy, waterlogged soil. Water Aptenia lightly during the winter if the leaves begin to look shriveled. Provide only enough water to moisten the soil as the plant deteriorates quickly in cool, damp soil.
Withhold fertilizer, which isn’t needed and often results in a weak, floppy plant. Trim the plant as needed throughout the growing season, using pruners or garden shears to keep the plant tidy. Pot the plant and bring it indoors for the winter when nighttime temperatures drop below 50 degrees Fahrenheit (10 degrees Celsius).
Grower’s Tips Aptenia isn’t difficult to grow in pots. Use a combination of 1 part potting mix and 1 part sand or a commercial mixture for cacti and succulents. Put the pot in direct sunlight and water deeply whenever the soil feels dry.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
The genus Tavaresia includes at least 2 species (Tavaresia barklyi, Tavaresia angolensis) of spiny stem succulents native to southern Africa. Short, erect, 6-14 angled stems carry rows of tubercles furnished with 3 fine white spines which gives the plants a cactoid appearance. Technically, these spines represent a modified leaf spine with 2 side stipules, unique to this genus. Stems take on a dramatic dark colouration in a sunny position, contrasting with the spines. The large funnel-shaped flowers make these plants attractive to collectors. Swellings near the tips of the coronal lobes are also unique to this genus.
Growing Conditions Light: Tavaresias prefer light shade rather than full sun, although stems may not color up under shady conditions. Water: They should at all times sparingly watered (best rain water with some occasional fertilizer), and in winter time they hardly require any. Temperature: A minimum winter temperature of 41°F (5°C) is acceptable, providing that plants are kept absolutely dry. Soil: They grow well in light gritty soil with a very liberal drainage.
General Care Tavaresias are mainly grown by plant collectors, lovers of succulents and enthusiasts who enjoy growing unorthodox looking plants. They comes from summer rainfall areas, and are intolerant of excess water, humidity and low winter temperatures and easily destroyed by molds. Flower buds drop off easily in response to the slightest touch or unfavorable conditions.
Propagation Plants are usually increased by cuttings, which, as they are very succulent, should be allowed to dry a week after they are taken off, when they may at once be put singly into pots. Grafting the Tavaresia on Stapelias is often useful, and can be recommended.
Pest and Problems Keep their roots free of mealy bugs, as fungal attack often occurs as a result of damage to stems by insects. A layer of grit on the surface of the compost prevents moisture from accumulating around the base of the stems and minimize the chance of fungal attack on the roots.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Commonly called crown cacti, the Rebutia genus includes some of the most popular and easiest to grow cacti, making them perfect for beginnings. These plants are native to high elevations in South America, where they grow in clusters on the mountains. They are frequent bloomers and readily send out offshoots, so even plants only two or three years old will form an attractive cluster of small plants.
Their flowers typically emerge from the base of the plant or between individual plants in the same cluster, as opposed to the crown of the plant. In terms of culture, they are not particularly difficult and like bright light and light moisture.
Growing Conditions Light: Rebutia thrive in bright light and range of conditions. Many species can be grown in partial shade to full sun. However, as these are mountain species, they do not appreciate high temperatures, which should be avoided. Water: Throughout the growing season (spring and summer) let the potting soil almost completely dry out between waterings, then water thoroughly. In winter, cut back watering. Soil: A rich, fast-draining cactus mix is ideal. Fertilizer: During the growing season, fertilize with a cacti fertilizer mix. Suspend feeding during the dormant winter period.
Propagation Rebutia cacti can be propagated easily from offsets, which readily in clusters around the base of the mother plant. Once your plant has gained a decent size and has sent out several offsets, carefully remove the offset and allow the cut to dry on a paper towel for a few days. Depending on the size of the cut area, a callous will form over the cut surface. Once the callous has formed, place the new plant in a pot with a potting soil mixture and keep in a warm place until new roots emerge. Once the plant is established, repot it into a regular container.
Repotting Repot as needed, preferably during the warm season. To repot a cacti, make sure the soil is dry before repotting, then gently remove the pot. Knock away the old soil from the roots, making sure to remove any rotted or dead roots in the process. Treat any cuts with a fungicide. Place the plant in its new pot and backfill with potting soil, spreading the roots out as you repot. Leave the plant dry for a week or so, then begin to water lightly to reduce the risk of root rot.
Grower’s Tips If you can grow cacti and succulents successfully, you can likely grow the popular Rebutia without too much trouble. Their water and light requirements are fairly typical for many cacti species, including a cooling period in the winter to promote better blooming. Watering should be done carefully, allowing the plant to almost dry out between waterings. It’s imperative that the cactus is not exposed to prolonged dampness and sitting water. Never let your cactus sit in a dish of water. For the best viewing, instead of propagating your offsets, let the plant for a large cluster. When it blooms, this will make a truly beautiful display. Lastly, make sure to fertilizer during the growing season for the best results.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Braunsia is a genus of succulent plant in the family Aizoaceae, occurs the southwestern part of the Western Cape Province in South Africa. The plants are shrublets or creepers, characterized by their serrated, partially fused leaves.
The beautiful flowers, ranging in color from salmon to pink to white, bloom in winter and spring, opening and closing in the afternoon. They do well in cultivation and are, for the most, not very finicky.
Growing Conditions and General Care Braunsias are moderately slow growing succulents. Needs moderate water when growing in late fall and early spring. Keep somewhat dry the rest of the time. Like all living rocks, they thrive in porous soils with excellent drainage. It can tolerates high heat and some frost (hardy to 23° F (-5° C) or less if very dry). Braunsias are very rewarding succulents and can be cultivated in desert garden in warm climates or in greenhouses or windowsills in the home where too hardy. Enjoy bright shade in summer and full sun on the other seasons.
Propagation They are easily propagated by seed and cuttings.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Ipomoea is the largest genus in the flowering plant family Convolvulaceae, with over 500 species. It is a large and diverse group with common names including Morning Glory, Sweet Potato, Bindweed or Moonflower. The most widespread common name is Morning Glory. The generic name is derived from the Greek words (ips) or (ipos), meaning “worm” or “bindweed,” and (homoios), meaning “resembling”. It refers to their twining habit. The genus occurs throughout the tropical and subtropical regions of the world, and comprises annual and perennial herbaceous plants, lianas, shrubs and small trees; most of the species are twining climbing plants.
Most species have spectacular, colorful flowers and are often grown as ornamentals, and a number of cultivars have been developed. Humans use Ipomoea for their content of medical and psychoactive compounds, mainly alkaloids. Some species are renowned for their properties in folk medicine and herbalism.
Growing Conditions and General Care In the garden, Ipomoeas need moderately fertile, well-drained soil in full sun. Provide shelter from wind. Prune climbing species in spring. Under glass, provide full light with protection from the hottest sun. Water freely and fertilize monthly during the growing season, but water sparingly in winter. Climbers and trailing species need support.
Propagation Chip seeds with a knife, scrape with sandpaper, or soak in water for 24 hours before sowing at 64° F (18° C) in spring. Root softwood cuttings of perennials or shrubs in spring or summer, or take semi-ripe cuttings in summer. Pests and Problems White blister, rust, fungal leaf spots, stem rot, thread blight, charcoal rot, and wilt can occur.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
The Jatropha genus includes a very wide variety of plants native to the warmer regions of the world. They range from tropical plants to semi-arid subtropical plants that resemble succulents in their growth patterns. Depending on where you live, you might see different types of Jatropha. One of the most popular in the United States nursery trade is the Jatropha integerrima, which is grown for its sprays of shocking and beautiful red flowers.
Like many species in the Euphorbiaceae family, these plants are toxic and should not be located in areas where curious children or pets might decide to sample them. If, however, you have the right location and safety is not a concern, these are wonderful plants, both for their ease of cultivation and their beauty.
Growing Conditions Light: It somewhat depends on the species, so ask your garden center staff. Many Jatropha prefer bright and sunny conditions, while others thrive in partial shade. Water: Provide regular water during the growing season, and reduce watering during the winter. Immaculate drainage is important, and some species are very drought tolerant. Jatropha integerrima is drought tolerant. Soil: A rich typical potting mix will do fine. Provide lots of coarse drainage material and get into the habit of watering daily. Fertilizer: Feed with a weak liquid fertilizer throughout the growing season.
Propagation Jatropha can be propagated by seed (if you’re fortunate enough to get sides) or by stem cuttings. To take stem cuttings, remove a small piece of stem, dip it in rooting hormone, then pot into a small pot with seedling starter soil. Place in a warm, bright place and wait for new growth to emerge. Repotting Annually, in the beginning of the growing season. Many Jatropha species are naturally small shrubs, ranging up to 15 feet (4.5 m) in height. To keep your indoor container plant manageable, trim it to size and possibly root prune older plants. Much larger plants should be refreshed occasionally by removing the top several inches of potting soil and replacing it with fresh potting soil.
Grower’s Tips The key to growing successful Jatropha is to achieve the proper balance between moisture and drainage. They typically appreciate a steady supply of water, but the most popular species cannot tolerate being submerged or soaked and will quickly succumb to root rot. Many of the popular Jatropha species make excellent small trees for a conservatory or sunny corner. Keep them well pruned so they don’t outgrow their space too soon. Jatropha are vulnerable to pests including aphids, mealy bugs, scale, and white fly. If possible, identify the infestation as early as possible and treat with the leave toxic option.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Monanthes is a genus of small, succulent, subtropical plants of the Crassulaceae family. The about ten species are mostly endemic to the Canary Islands and Savage Islands, with some found on Madeira. Its center of diversity is Tenerife, with seven species occurring on this island. On Fuerteventura and Lanzarote, only Monanthes laxiflora occurs.
Monanthes are not frost-resistant. They are linked with the genera Sempervivum, Aichryson and Aeonium, which is obvious from their similar flowers. Species of Monanthes differ considerably in life- and growth-form. Most species make stemless to short stemmed rosettes of tiny, strongly succulent leaves and do not reach more than 0.4 inch (1 cm) in diameter.
Growing Conditions Light: Suited for bright situations in mid-shade or under filtered sun. Temperature: Monanthes are not frost-resistant. Keep dry at 41 – 50° F (5 – 10° C) in winter, but can tolerate sporadic light frost if kept on the dry side prior to, and during, cold weather. USDA hardiness zones 9-11. Water: It likes a winter’s rest and should be kept dry during the winter months. From early spring the plant will begin to grow and watering should be increased gradually until late spring when the plant should be in full growth. Water regularly during the growing period so long as the plant pot is allowed to drain and not sit in a tray of water.
Soil: Use an open and free draining mineral compost with little organic matter (peat, humus) that allows therefore roots to breath. Outdoors a well-draining rocky or sandy soil is ideal. Fertilizer: Feed with a high potassium fertilizer in summer during the growing season diluted to one-fourth potency and mix into the watering can for application. Propagation It is easy to propagate either through rosette cuttings or seed.
Grower’s Tips Monanthes are easily grown in even very small pots in any rich, well drained, rocky soil in a sunny spot. Keep plants drier in winter in full sun and at a minimum of some 10° F (10° C). They takes very little place in the collection and are asking very little attention. The only things that can kill this plants are cold, hot blasting sun and overwatering. Monanthes may be attractive to a variety of insects, but plants in good condition should be nearly pest-free. Repot it every 2 or 3 years in order to evaluate the health of the plant and provide a larger growing space being careful not to damage the sensitive roots.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
Blossfeldia is the smallest of the cacti. Although several species of Blossfeldia have been described, most botanist agree on the fact that all the ones described until now should be included in Blossfeldia liliputana. The Blossfeldia is much easier to grow when grafted. Because of their slow growth rate, Blossfeldias are often grafted, which causes them to grow very fast and offset heavily but lose their characteristic disc-like shape, becoming quite globular and bloated. In this case the minimum temperatures acceptable should take in account the requirements for the rootstock.
Growing Conditions Light: Some shade with ample airflow is preferred for best appearance. Temperature: Blossfeldia need to be kept in a cool place during winter rest and can tolerate sporadic frost if kept on the dry side prior to, and during, cold weather with little danger of being killed (Frost tolerance: At least 15°F (-10°C)). However in cultivation it is better not to expose it to temperatures lower than 40°F (5°C), even if in an aerated and protected location. It tends to rot in winter during the resting phase, if kept wet.
Water: Water during the growing period from March till October, the thin, fibrous roots suffer if there is humidity, therefore the plant should be watered only when the surrounding terrain is dry. But needs to be avoided wetting the bodies of these plants while they are in sunlight. A wet plant in the sun light can cause sun burning which can lead to scares or even fungal infections and death. Keep dry as soon as the temperature starts dropping in October and keep it perfectly dry in winter at temperatures from 40-60°F (5-15°C). Preferable not to water on overcast days, humid days or cold winter days. Soil: Grow it in a particularly draining substratum, as it is very sensitive to rottenness when in presence of humidity and low temperatures and let the soil dry out between waterings.
Fertilizer: It grows faster with a low nitrogen content fertilizer in spring and summer. Propagation Almost exclusively by seed and graft. The minuscule seeds should be sown on the surface of a very finely sifted soil mix. These plants are very slow growing and is very difficult to keep them alive on their own roots for the first 4-6 months and should be watered by carefully misting with a hand held spray bottle until they are large enough to be watered normally.
Pests and Problems It may be attractive to a variety of insects, but plants in good condition should be nearly pest-free, particularly if they are grown in a mineral potting-mix, with good exposure and ventilation.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
The genus Nananthus occurs widely in the interior of South Africa, in the Eastern Cape Province, Northern Cape Province, the Northwest Province, and the Free State. There is also a population in eastern Namibia.
Nananthus is made up of a dozen of species of mesemb. It is related to Aloinopsis and Titanopsis. The thick-rooted plants are tufted with pointed leaves arranged in rosettes and the attractive flowers. The flowers are 0.75 inch (2 cm) wide, yellow, with occasionally some red. Hardy growers, Nananthus will do well in a clayey soil. In the wild, they are summer growers, but in cultivation they often behave as winter growers.
Growing Conditions Light: They need full sun or light shade on the other seasons. Temperature: Nananthus will take a small amount of frost for a short time (it is reported to be hardy to at least 10° F/-12° C). Keep cool in summer. Water: Water minimally in summer, only when the plant starts shrivelling. Soil: Because of the tap root they need a highly gritty compost with much drainage.
Propagation Nananthus are propagated by cuttings and seeds. Grower’s Tips Coming from a more continental part of South Africa, Nananthus will tolerate intense heat, as well as some frost. They should be lightly shaded in summer. They generally bloom in the fall. Most species develop large root systems, and need to be kept in a large pot. This also means that the soil mix needs to have an excellent drainage to avoid root rot. They are sometimes planted so that some of the root system is shown.
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Dummer. ゛☀
2017年09月20日
Dummer. ゛☀
The genera of plants within the tribe Stapeliae are all to varying degrees stem succulents. Many of the species resemble cacti, though are not closely related, as an example of convergent evolution. The stems are often angular, mostly four-angled in cross-section, but in some species there are six or more, with some species of Hoodia having more than thirty angles. In size they vary from less than 1 inch (2.5 cm) in length to over 6 inches (15 cm) tall. The leaves are in most species reduced to rudiments, sometimes hardened and thorn-like, arranged on bumps or tubercles on the angles. Some species, however, still have recognisable leaves, most notably the Indian species Frerea indica, and some members of Tridentea.
Stapeliads are most abundant in warm, dry climates. In Africa, there are two separate regions where Stapeliads have most diversified: northeast Africa, and Southern Africa. Several species are endemic to the small island of Socotra off the Horn of Africa. The Arabian Peninsula, and most specifically the country of Yemen, contain another concentration of species. Several more are found in the drier parts of Pakistan, Afghanistan, India, Nepal, and Myanmar. A single species, Caralluma europea is found in Europe, in the very southern part of the Iberian peninsula.
Most Stapeliads use flies as pollinators, that are attracted to odours resembling dung or rotting meat, emanating from the flowers. Many of the flowers also bear some physical resemblance to rotting animal carcasses, leading to their popular name of Carrion Flowers. However, not all Stapeliads smell bad, or attract flies. Some species use beetles, bees, wasps, butterflies or moths as pollinators. Stapeliad flowers range in size from mere millimetres in species of Echidnopsis and Pseudolithos to those of Stapelia gigantea that can reach 16 inches (40 cm) in diameter, and are some the largest of flowers to be found on any species of succulent.
List of Genera Angolluma, Baynesia, Caralluma, Desmidorchis, Duvalia, Echidnopsis, Edithcolea, Frerea, Hoodia, Huernia, Huerniopsis, Larryleachia, Notechidnopsis, Orbea, Orbeopsis, Piaranthus, Pachycymbium, Pectinaria, Pseudolithos, Pseudopectinaria, Quaqua, Rhytidocaulon, Stapelia, Stapelianthus, Stapeliopsis, Tavaresia, Tridentea, Tromotriche, Whitesloanea. Growing Conditions Light: All Stapeliads enjoy dry heat and sunlight, if not too bright and intense. Temperature: Stapeliads do not like winter cold and should remain fairly dry and warm during its winter resting period. Water: In growing season, water in moderation when needed, making sure soil is fairly dried out between waterings. Do not water between November 1 and March 1.
Soil: They all need extra good drainage. Stapeliads are shallow rooted and a collection of them can be planted up nicely in a wide, shallow bowl. When planting, it is a good idea to allow the roots to be buried in soil and then put pure gravel or sand around the base of the plant to prevent rot. Fertilizer: Fertilize lightly, if at all, to prevent overly lush and weak stems. Propagation The easiest and best way to propagate Stapeliads is from stem cuttings which can be taken virtually throughout the year. Seed is also a method of propagation.
Grower’s Tips Stapeliads are relatively easy to grow. They should be treated as an outdoor plant as they will easily rot indoors and cannot flower without exposure to outdoor temperature fluctuations. They should be grown under cover so that watering can be controlled. They require a reasonable amount of sunlight to promote flowering and maintain a well shaped plant. Very shady positions will produce very poor flowering. Stapeliads come from climates where they survive extremely high temperatures in the summer months so most growth is in spring and autumn, with flowering in autumn when the weather starts to cool down.
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