Sophora Species, Eve's Necklace, Texas Sophora

Sophora affinis

Family: Fabaceae (fab-AY-see-ee) (Info)
Genus: Sophora (SOF-or-uh) (Info)
Species: affinis (uh-FEE-niss) (Info)
Synonym:Styphnolobium affine



Water Requirements:

Drought-tolerant; suitable for xeriscaping

Sun Exposure:

Full Sun



Provides Winter Interest

Foliage Color:

Unknown - Tell us


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)

Where to Grow:

Unknown - Tell us


Seed is poisonous if ingested

Bloom Color:


Magenta (pink-purple)

Fuchsia (red-purple)


Bloom Characteristics:

Unknown - Tell us

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Other details:

Unknown - Tell us

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


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

Anniston, Alabama

Barbourville, Kentucky

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

Harlingen, Texas

Helotes, Texas

Lake Dallas, Texas

Royse City, Texas

San Antonio, Texas

Waxahachie, Texas

Weatherford, Texas

Wimberley, Texas

show all

Gardeners' Notes:


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.


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!


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.


On Oct 16, 2003, Cathi from Owasso, OK (Zone 7a) 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.