Cryptomeria is a genus of only 1 species; C.Japonica. Though commonly known as the Japanese Cedar it is in fact not a member of the Cedrus family but a part of the Taxodiaceae family along with Yews. Cryptomeria Japonica is an evergreen, monoecious, coniferous tree native to the forests of China, Korea and Japan. Known for its naturally conical habit and its thick, red, fibrous bark, the C.japonica has narrowly wedge-shaped light-green (fading to dark-green) leaves arranged in 5-ranked spirals around its shoots. Species/varieties suitable for bonsai culture Many varieties of C.Japonica are commonly used for bonsai for instance; Elegans, Elegans Compacta, Pyramidata. There are a number of dwarf varieties that require less frequent pinching out such as Elegans nana and Globans nana however, as slow-growing varieties these can take considerably longer to achieve thick trunks and take longer to style. Bonsai cultivation notes Positioning Cryptomerias need a light position out of direct sun during the summer with good ventilation. During the winter, some protection is required from frosts. Leaves commonly brown during the winter but brighten back to green in the Spring. Feed Every 2 weeks Spring to Autumn; from bud extension in April feed high nitrogen, a balanced feed from June and low nitrogen to strengthen the root system from August onwards. Repotting Every 2 years in mid-spring as new buds start to grow. Older specimens can be repotted according to root development. Repot in a standard mix. Pruning Continual, regular pinching out is required throughout the growing season to spread energy throughout the tree and to keep the trees' shape. Cryptomeria will backbud very readily from points all over the tree given regular pinching. Do not use scissors to cut foliage as this causes the cut edges to brown as with Junipers. Hard pruning can be carried out in Spring, however care must be taken to produce a clean cut as the bark and cambium layer separates easily from the wood. Wiring Wiring should be carried out between April and July to allow time for branches to heal before the cold of winter. The branches are very supple though they can separate easily from their junctions so care must be taken. Bend branches over 2cm in thickness slowly over the course of a few weeks as creating rapid movement over too short a period of time can result in the bark splitting. It is possible to prevent this by binding with raffia before the applying wire. Pests and Diseases Red spider mite and scale can cause problems, try to prevent this with regular misting of the foliage. Propagation Sow seed outside in Spring. Cuttings root very easily in late summer/early autumn from ripewood. Styles Most commonly seen representing its natural form, the formal upright with single or multiple trunk styles in extra-small to medium sizes. Branches are presented on a horizontal or slightly drooping plane with the foliage trained up above so that the branch structure is revealed.
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Cryptomeria japonica or Japanese cedar is an evergreen conifer endemic to the moisture-rich Japanese mountains. The tree may grow to over 100 feet in its natural environment and is favored in its homeland as both bonsai and ornamental. Despite its name, this species is not a true cedar. While japonica is the only species in its genus, there are many cultivars that are appropriate as bonsai art. Some favored varieties include Cryptomeria japonica 'Tansu' and Cryptomeria japonica 'Lobbi Nana'. Tree's Attributes: The fibrous, reddish bark and tiny green needle-like leaves make for a striking bonsai. It is naturally conical, and the dense, blue-green foliage turns reddish-brown in the winter, then green again come spring. Even though it is not a true cedar, it does share the slow-growing characteristic typical of cedars. Temperature/Lighting/Location: The Japanese cedar prefers full sun, at the most light shade, and is fairly hardy but must be protected from heavy winds and extended freezes. The needles are sensitive to too much hot sun or too vigorous of winds, and may turn brown under exposure. Watering: Watering should be moderate – the Cryptomeria is native to rather damp locations and so can tolerate "wet feet". It should be planted in well-draining soil, and usually needs watering every day, enough to keep the soil from becoming completely dry. Fertilizing: Feed your tree a diluted, well-balanced mixture every two weeks throughout the growing season. In fall, switch to a nitrogen-free fertilizer such as 0-10-10. Pruning/Training: The straight trunk and traditional conifer shape of this species lends itself well to being styled as a formal upright. It is also suitable for a forest or landscape grouping. The dense foliage of this bonsai requires that new growth be aggressively pruned to keep tangling and overlapping branches and shoots under control. This also allows for air and light to nurture the remaining foliage and makes for an environment that is less friendly to pests and disease. New growth should be pinched, not clipped, to avoid browned tips.
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This hearty evergreen grows up to 100 feet in its native conditions of the moisture rich mountains of Japan. Sometimes called the Japanese cedar, these trees are happiest when given simulations of their natural environment and prefer and abundance of moisture, they love wet “feet” in well draining soil, high humidity and cooler temperatures. A perfect bonsai for those who tend to overwater their plants, this cedar-like tree will thrive in conditions that other plants would rot from. This bonsai prefers humid environments. Water daily or as needed, never allowing the soil to completely dry out. Feed your bonsai with a balanced diluted feed, once every two weeks, throughout the growing season; switching to a nitrogen free mix in the fall. This bonsai can be susceptible to scale and red spider mites. Red spider mites can be controlled with a mixture of 1 tsp. dish soap and 1 quart warm water sprayed on foliage until desired runoff is achieved.
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http://www.gartenvideo.com DAS deutschsprachige Portal für Gartenvideos! http://www.Lubera.com Unser Lubera Pflanzenshop Elegans, eine wirkliche elegante Edeltanne mit extrem feinen Nadeln. Die Sicheltanne mit Japan und Südchina als Ursprungsgebiet, liebt hohe eine Luftfeuchtigkeit und sollte eher in maritimere Lagen gepflanzt werden. In Südchina und Japan wird sie vorwiegend forstwirtschaftlich genutzt. Bei uns in kontinentaleren Lagen ist sie vor allem als junge Pflanze relativ frostgefährdet, erreicht aber als gut verholztes, älteres Exemplar eine ausreichende Frosthärte für Mitteleuropa. Sie liebt hohe Luftfeuchte, verträgt aber keine scharfen Winde und ist schneebruchgefährdet. Bevorzugt wird ein wintermilder, sonniger bis absonniger Standort auf tiefgründigem, frisch-feuchten Boden. Es eignet sich hervoragend ein geschützter Standort zum Beispiel an einem Binnensee. Sehr empfindlich kann die Sicheltanne auch bei gefrorenem Boden auf starke Wintersonneneinstrahlung reagieren.
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