This rhizomatous herbaceous perennial is almost stemless and forms a spreading clump. It has divided dark green leaves with heart-shaped leaflets and the white-pink funnel-shape flowers appear above the foliage from spring to summer.

Hardiness zones 7 to 10 

Oxalis oregana is naturally found in North America from south-western British Columbia, Washington, Oregon and California growing in the understory of Redwood and Douglas fir forests from sea level to an altitude of 1000m (3280 ft).  

It prefers cool damp well-drained acidic soil in a protected shaded position and is frost tolerant but drought tender.

Redwood Sorrel it is grown for its spreading habit, foliage and flowers. It is planted in the understory of woodland settings or used as a ground cover or in shaded garden beds. It is suitable for coastal and low-mountain regions, establishing from division in 1-2 years and is moderately long lived. This perennial is also grown in patio pots and planter boxes or used in shaded rockeries. ID 3414

Oxalis (oks-AH-lis) oregana (OH-ray-GAH-nah)

Oxalidaceae (ok-SAL-e-DAY-see-ee)