Cryptomeria japonica (syn. 'Sekkan Sugi') 'SEKKAN' Japanese cedar
size/type
taller shrub,taller shrub
usual height
3-8m
usual width
2-3m
leaves
evergreen conifer
colour of leaves
flowers
insignificant or non-blooming
location
full to partial sun
USDA zone (lowest)
5b (down to -27°C)
winter protection
for zone 5+6
for zone 7
categorized
Description of the plant:
Sekkan is a gorgeous evergreen conifer not only for Japanese gardens. It forms a fat, cone-shaped shrub or small tree with bright, sulphur-yellow or creamy-yellow new growths. They remain yellow throughout the year until next spring when they turn deep green and are replaced by new foliage that is again bright yellow. This contrast as well as an elegant statue make this Japanese cedar an eye-catching feature of any garden.The reports on growth rate are quite contradictory so we shall use logic to work out how to look after it. If your Sekkan Sugi grows fast it will soon make a tall stem with weak branching. In such case we recommend pruning it in early spring after all frosts by removing halves of previous year's growths. If your Sekkan Sugi grows slowly it will most probably be quite dense and any form of pruning will not be necessary. Still, if you are addicted to garden scissors you can clip it lightly to achieve an even better shape. Naturally it makes pyramidal shape but you can create almost any shape you wish – I have seen a large ball of Sekkan Sugi and it looked quite good.
Japanese cedar will tolerate most soils including chalky but for best results and most beautiful looking plant grow it in well-drained but equally moist, humus-rich soil in full sun or just a part shade. It is fully hardy to about -27°C (USDA zone 5b) but prefers a location sheltered from drying winds in winter.
Last update 19-02-2011
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GLOSSARY
- STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
- DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
- EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
- STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
- HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
- SHRUB - a woody plant with branches growing bushy from the ground level.
- HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
- FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
- GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
