Description
Form: Shrub.
Leaf retention: Evergreen but frost-deciduous.
Growth rate: Moderate to rapid.
Mature Size: 3-4' (1-1.2m) high and 5-6' (1.5-1.8m) wide.
Flowers: Purple, pea-like, small, in dense, short spikes at the ends of branches.
Bloom: Winter and spring, and/or mid-summer through fall, depending on local climate.
Fruit: A tiny dried seed pod.
Leaves: Small numerous green leaflets.
Stems: No thorns.
Roots: Nitrogen-fixing*. Stem nodes root wherever they touch ground.
Wildlife: The flowers attract bees, and occasionally, butterflies. The foliage is browsed by mammals.
Toxic / Danger: No.
Origin: New Mexico, Oklahoma, Texas and Mexico.

Cultivation and Uses
USDA hardiness zones: 8b-13.
Heat tolerant: Yes.
Drought tolerant: Yes.
Sun: Full sun.
Soil: Very well draining, dry, low organic content, pH 6.6-8.5 (neutral to alkaline). *Do not use a nitrogen fertilizer.
Water once established: Monthly. Do not overwater. It is subject to root rot in poorly draining soil or when over-watered.
Prune: When the danger of frost is past, remove damaged parts, shear heavily to shape or to rejuvenate. It can be sheared into a hedge after flowering. Too much shearing will reduce flowers.
Litter: Low.
Propagation: Seed.
Uses: Ornamental, hedge. Possible erosion control on rocky slopes.

Comments
This plant is a member of the Legume family (Fabaceae). Another common name is Black Prairie Clover.

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