A beautiful plant, made doubly beautiful by the lack of competition when it blooms. 2" yellow flowers with a hint of green pop up in late...Read More winter with common snowdrops (Galanthus nivalis) and Crocus tommasinianus, as early as Valantine's Day (but more usually the beginning of March) in Boston Z6a. Flowers open when the stems are only a couple of inches high, and continue as the stems elongate and the handsome feathery foliage extends. After about six weeks, plants go dormant quickly and inconspicuously.
Clumps are very slow to increase. Old large clumps with many flowering stems may be carefully divided in spring just after they go dormant. Do not disturb later in the season.
This species does not like hot summer climates. Armitage gives hardiness range from Z4-Z7 in eastern N. America.
The wild species doesn't seem to be in cultivation in North America. 'Fuku jukai' is generally what you get when you buy Adonis amurensis, though it may not be so labeled. This cultivar is sterile and may be a hybrid.
A beautiful plant, made doubly beautiful by the lack of competition when it blooms. 2" yellow flowers with a hint of green pop up in late...Read More