Ground covers, Perennials
Leaves are 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 1/2–4 in. wide. Blooms in spring, sometimes again in fall, bearing white (sometimes pink), 1-in.-wide flowers with lavender veining. Makes an attractive groundcover for partial to deep shade in areas with mild winters and cool summers. Plant may outcompete other groundcovers. Dies down in winter in colder part of climate range; elsewhere, mow to renovate. Tolerates wet conditions.
Little-used but attractive clan of shrubs or small trees noted for thick, leathery, glossy leaves (ani...
Bushy dwarf to 1 1/2–2 ft. high, 2 1/2 ft. wide. Dark green, needlelike leaves; twisted branches...
Has been confused with C. t. ‘Skylark’ but seems to be a larger plant, to 9 ft. t...