Description

Island alumroot is one of the few California native perennials that thrives in dry shade and looks great all year. The soft apple-green leaves rise from one or more central stems in an open structure. The large round leaves give the impression of a moist woodland or riparian setting. In late winter or early spring, island alum root sends up multiple flower stocks accented with small narrowly spaced flowers of white with pink details. The bloom appears almost misty from a distance. Island alumroot will spread via underground rhizome, though slowly. The plant may be cut back heavily to stimulate fresh growth and improve its appearance. Island alumroot is native to the northern Channel Islands where it benefits from the moderating effects of the Pacific. It will tolerate full sun in a cool coastal setting, but will decline in the sun elsewhere. In west San Jose I have found that island alumroot does quite well with about two hours of sun and very occasional light summer waterings.