Photo by Melody

PlantFiles: Redwood Sorrel, Oregon Wood Sorrel
Oxalis oregana

Family: Oxalidaceae
Genus: Oxalis (oks-AL-iss) (Info)
Species: oregana (or-reh-GAH-nuh) (Info)

Synonym:Oxalis acetosella subsp. oregana
Synonym:Oxalis oregana var. smallii

2 vendors have this plant for sale.

9 members have or want this plant for trade.


under 6 in. (15 cm)
6-12 in. (15-30 cm)

9-12 in. (22-30 cm)

USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Light Shade
Partial to Full Shade
Full Shade

Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Late Spring/Early Summer
Mid Summer

Grown for foliage

Other details:
May be a noxious weed or invasive
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:

Propagation Methods:
By dividing the rootball

Seed Collecting:
Unknown - Tell us

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By Todd_Boland
Thumbnail #1 of Oxalis oregana by Todd_Boland

By Todd_Boland
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By growin
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By Kelli
Thumbnail #6 of Oxalis oregana by Kelli

By kennedyh
Thumbnail #7 of Oxalis oregana by kennedyh

There are a total of 9 photos.
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1 positive
No neutrals
1 negative

Gardeners' Notes:

Negative marimuse On Oct 8, 2012, marimuse from Port Townsend, WA wrote:

This is a beautiful little groundcover....however, I have found it to become VERY invasive, with very deep roots. I have tried several times to remove it, but it keeps coming back. I wish I had never planted it. I live in the Pacific Northwest.

Positive growin On Aug 31, 2006, growin from Vancouver, BC (Zone 8b) wrote:

I grew up with this plant and always appreciated it. Can nicely fill an area without being invasive. Roots are shallow so it's easily removed, is even a bit drought-resistant, lovely white flowers, great for naturalizing an area.


This plant has been said to grow in the following regions:

Crescent City, California
Menlo Park, California
San Francisco, California
Port Townsend, Washington

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