Dwarf, compact shrub with short internodes, leaves 3-4 cm long, prolific flowers.

Seed sent from the Imperial University of Tokyo as F. viridissima var. koreana was raised at the Boyce Thompson Arboretum in America in 1928 and propagating material of dwarf plants that arose from some of the seedlings was then sent to the New York Botanical Garden and named in 1947.