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Common Name: Kinugasaso
Kinugasa japonica is a
E. Asia - Japan.
Humus-rich soils in woodlands, N. Japan[
Prefers a deep well-drained woodland or humus-rich soil in a somewhat shady position that remains moist in the summer[
]. Prefers a neutral to slightly acid soil[
]. Grows well in open woodland[
]. Succeeds in a sunny position if the soil does not dry out[
This species is not hardy in the colder areas of the country, it tolerates temperatures down to between -5 and -10°c[
Any transplanting is best done whilst the plants are in flower[
Plants can flower in two years from seed[
]. No more details are given.
Seed - best sown in a shaded cold frame as soon as it is ripe[
]. Stored seed should be sown in late winter or early spring. Seed usually germinates within 1 - 3 months at 15°c. Another report says that seeds produce a root after the first cold stratification but no shoot is produced until after a second winter[
]. The seedlings are prone to damp off and must therefore be given plenty of fresh air[
]. The young plants need to be overwintered in a cold frame for the first year and can then be planted out in late spring. It is very important that the pots become neither too dry nor too wet[
Division with care when the plants die down after flowering[