Photo by Melody

PlantFiles: Eve's Necklace, Texas Sophora
Sophora affinis

Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Sophora (SOF-or-uh) (Info)
Species: affinis (uh-FEE-niss) (Info)

10 members have or want this plant for trade.


20-30 ft. (6-9 m)

6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)

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

Sun Exposure:
Full Sun

Seed is poisonous if ingested

Bloom Color:
Magenta (Pink-Purple)
Fuchsia (Red-Purple)

Bloom Time:
Mid Spring
Late Spring/Early Summer
Mid Summer


Other details:
Drought-tolerant; suitable for xeriscaping
Provides winter interest

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
Scarify seed before sowing

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds

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There are a total of 9 photos.
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4 positives
No neutrals
No negatives

Gardeners' Notes:

Positive beazert On Mar 5, 2011, beazert from Decatur, TX wrote:

Grows wild around Decatur, Texas. Handles sun or shade; in fact, the one I have growing in the shade has been more prolific, but that could be because it's growing in Living Earth. Very hard to find in nurseries.

Positive piedrarosa On May 22, 2010, piedrarosa from Royse City, TX wrote:

Dandy little tree - grew from little transplant dug up at neighbor's about 10 years ago. It has lots of "daughters" but it's not a problem if you mow. All of a sudden, this year there has been NO green on it. Last year it looked just fine. I can't imagine what happened. Surely it lives longer than that!

Positive tobydmv On Dec 27, 2006, tobydmv from Lake Dallas, TX wrote:

Very cool little tree that needs little care but benefits from an organic program. I found a horned caterpillar on mine last fall for several weeks which would suggest its a host plant. This is a good replacement for Japanese Maples and has the same upright and slender branching pattern. Native to Dallas. Waxy leaves have not scorched yet during droughts.

Positive Cathi On Oct 16, 2003, Cathi from Copperas Cove, TX wrote:

In the southern U.S., this native Sophora grows to a small (under 15') shrub or tree with rounded crown. Tolerates full hot sun and humidity very well. Drought tolerant and withstood the ice storm we had in Feb 2003.

The blooms are a reddish pink/mauve color and resembles a wisteria-type bloom about half the size. The seed pods are a "string of pearls" that are black. They dry on the tree and hang for a long time. I gather them, sand between sandpaper sheets to thin hard coat, then plant them. Unsure of germination length.

Sometimes planted as an ornamental, but the seeds may be poisonous.


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

Anniston, Alabama
New Bern, North Carolina
Arlington, Texas
Austin, Texas (4 reports)
Belton, Texas
Brownwood, Texas
Converse, Texas
Dallas, Texas (2 reports)
De Leon, Texas
Decatur, Texas
Dodd City, Texas
Dripping Springs, Texas
Fort Worth, Texas
Granbury, Texas
Helotes, Texas
Lake Dallas, Texas
Royse City, Texas
San Antonio, Texas
Waxahachie, Texas
Weatherford, Texas
Wimberley, Texas

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