Ground covers, Perennials
Leaves typically divided into three leaflets, giving them the look of clover leaves. Flowers may be pink, white, rose, or yellow. Most can be slightly to highly invasive in the open ground; see individual entries for specific cautions.Oxalis oregana
Native to coastal forests from Washington to California. Grows to 10 in. high, spreading indefinitely by creeping rhizomes. Medium green, velvety leaves 1 1/2 to 4 in. wide. Blooms in spring, sometimes again in fall, bearing white (sometimes pink), 1-in.-wide flowers with lavender veining. Makes an attractive ground cover for partial to deep shade in areas with mild winters and cool summers. Plant may outcompete other ground covers. Dies down in winter in colder part of climate range; elsewhere, mow to renovate. Tolerates wet conditions.
Flowerstalk to 2 ft.; flowers 1 in. long,golden yellow with purple-blackmidrib and veins.
Native to Sierra Nevada and west of the Cascades from Northern California to British Columbia. To...
Thick spikes closely set with 1/2-in.-long flowers are topped with clusters of leaflike bracts that re...