Slowly rhizomatous, it will form a showy patch in a moist, lightly shaded spot. The leaves turn russett-red before they die back in fall. SW Oregon, N. California. The gold color is most intense in spring. The flowers are darker pink and bloom for a long time in spring into summer.
Some sun brings out the best form and foliage color.
Best not to let it reseed, as the true plant may get lost in the varying seedlings coming up around it. Seed from a botanical garden, so we are not sure of the color. Long, narrow, evergreen iris-like leaves. Very rare in cultivation. Superb, hard to find shade lover.