Temperate climates at low to medium elevations (4).
Local occurrence (where, how common)
In deep shade of mature alluvial forests.
Requiring moist conditions, it forms understory groundcover in late successional conifer forests (1).
Divisions in mid September (5).
Remove all but one or two leaves from plant division. Each division must contain a root or rhizome mass. (5).
Seeds require no seed pretreatment. Other members of the Oxalis genus are weedy pests in greenhouse environments (6). Seeds planted in cold frame in late winter to early spring. Transplant seedlings into individual pots when large enough to handle and plant in late spring or early summer (3).
Short shelf-life, best if sown as soon as ripe (3).
In restoration practices, propagation of divisions from vicinity of site is recommended. Seeding is also an option, but no success rates were found.
In field, moist humus. In nursery environment, standard potting mix of peat moss, fir bark, perlite, and sand (5).
Transplanting divisions is cheap and survival averages 90% (5).
Care requirements after installed
Water transplanted divisions in well. No additional watering requirements specified (5).
Can be an aggressive groundcover in appropriate growth conditions (3).
1. Fire Effects Information System, USDA FS. www.feis.org
3. Plants for a Future,
4. Pojar, J. and A. MacKinnon.
Plants of the
5. Young, Betty. Oxalis oregana
protocol information. NPS,
6. Young, J. and Cheryl G. Young. Collecting, Processing, and Germinating Seeds
of Wildland Plants.