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Yellow Wood Sorrel, Slender Yellow Wood Sorrel

Oxalis dillenii

Family: Oxalidaceae
Genus: Oxalis (oks-AL-iss) (Info)
Species: dillenii (dil-LEN-ee-eye) (Info)



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Where to Grow:

Suitable for growing in containers


under 6 in. (15 cm)


6-9 in. (15-22 cm)

9-12 in. (22-30 cm)


USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Full Sun

Sun to Partial Shade


Unknown - Tell us

Bloom Color:

Bright Yellow

Bloom Time:

Late Winter/Early Spring



Other details:

May be a noxious weed or invasive

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:

From seed; direct sow outdoors in fall

From seed; direct sow after last frost

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Bag seedheads to capture ripening seed

Allow pods to dry on plant; break open to collect seeds

Seed does not store well; sow as soon as possible


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

Seaside, California

Centerbrook, Connecticut

Lakeland, Florida

Yale, Iowa

Lake Arthur, Louisiana

Columbus, Ohio

Georgetown, Texas

Hondo, Texas

show all

Gardeners' Notes:


On Jul 2, 2014, Chillybean from (Zone 5a) wrote:

According to the USDA, this is native to the continental United States.

This alone will now cause me to leave it alone. We are out in the country and surrounded by industrial crops. Once we learn something is a native, we will let it go on our 9 acres of land. We've started noticing deer on our property recently and the above link mentions, this plant is moderately consumed by large mammals. If there is enough of this for them to eat, just maybe they will stay away from the people food gardens.


On Jun 18, 2013, plant_it from Valparaiso, IN wrote:

This Yellow Wood Sorrel (O. dillenii) is a European introduction to North America. I don't like it simply because it's not native to my area. It has seed capsules on reflexed stalks.

Look-alikes include:
O. stricta - This perennial plant is native to U.S. and Canada and is usually about 6" tall, but sometimes reaches 1' or a little more. There is a central stem that branches occasionally, creating a bushy effect on mature plants. It is often covered with scattered white hairs. The alternate trifoliate leaves have fairly long petioles, and are about " across when fully open. Depending on environmental conditions, they are light green, green, or reddish green, and fold up at night. Occasionally, they fold up in response to intense sunlight during midday.

... read more


On Aug 13, 2009, swamp_thing from Lake Arthur, LA wrote:

This plant also grows wild in Louisiana. You can see them in abandoned lotts, with other clover plants.