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White Thorn, Mescat Acacia
Scientific Name: Acacia constricta Benth. ex A. Gray
Family: Fabaceae
White Thorn, Mescat Acacia (Acacia  constricta) Recommended Temperature Zone:
sunset: 10-24
USDA: 8-11

Frost Tolerance: Hardy to 15F (-9C)

Sun Exposure: Full sun

Origin: Southwestern USA (Arizona, New Mexico, Texas), Mexico (Chihuahua and Sonora, down to Oaxaca)

Growth Habits: Large shrub or small tree, spreading, 8 to 15 feet tall (2.4-4.5 m), 10 feet in spread (3 m); straight, 2 white spines, 0.25 to 1.5 inches long (6-37 mm) at the bottom of each leaf petiole, sometimes missing; fern-like alternate bi-pinnate leaves, up to 2 inches long (5 cm), 0.5 to 1 inch wide (12-25 mm), 3 to 7 pairs of pinnae, each with 5 to 16 pairs of leaflets

Watering Needs: Little water in Phoenix when established, no water in most other places

Propagation: Seeds (need scarification)

The species name "constricta" just means "constricted".

U.S.D.A. Drawing, courtesy Hunt Institute

Blooming Habits:
The White Thorn Acacia bears fragrant yellow balls in late spring, and occasionally during the summer and autumn. They are followed by reddish brown legumes, 2 to 5 inches long (5-12 cm), constricted between the seeds.

Fruiting Habits:

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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

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