Alphabetical Plant Listing

Oxalis oregana (Redwood Sorrel)

Redwood Sorrel, Oregon Oxalis


Oxalis oregano (Redwood Sorrel) is a creeping, rhizomatous perennial boasting rose-pink or white flowers, 1 in. across (2.5 cm), adorned with lavender veining from spring to fall. The charming blossoms are borne on slender stems over the foliage of velvety, mid-green, clove-like leaves. Easy to cultivate and maintain, this plant creeps underground via rhizomes and will spread indefinitely, naturalizing in shady, woodland conditions. It makes an attractive groundcover for part shade or deep shade in mild winter areas.

  • Grows up to 4-10 in. tall (10-25 cm).
  • Easily grown in moist, fertile, humus-rich soil in full or partial shade. Will tolerate sandy sites and clay. Drought tolerant when established, but grows best with occasional watering.
  • Propagate by division in spring; small sections of the rhizomes root readily with bottom heat
  • Virtually pest and disease free.
  • Native to coastal forests from Washington to California.

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Requirements

Hardiness 7 – 9
Climate Zones 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Oxalis
Exposure Partial Sun, Shade
Season of Interest Spring (Mid,Late)
Summer (Early,Mid,Late)
Fall
Height 4" – 10" (10cm – 25cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United States, California, Pacific Northwest, Oregon, Washington
Tolerance Drought
Garden Uses Ground Covers, Underplanting Roses and Shrubs
Garden Styles Informal and Cottage

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Brajianni, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 7 – 9
Climate Zones 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Oxalis
Exposure Partial Sun, Shade
Season of Interest Spring (Mid,Late)
Summer (Early,Mid,Late)
Fall
Height 4" – 10" (10cm – 25cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United States, California, Pacific Northwest, Oregon, Washington
Tolerance Drought
Garden Uses Ground Covers, Underplanting Roses and Shrubs
Garden Styles Informal and Cottage

Great Plant Combination Ideas with Oxalis

Guides with Oxalis

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