Blackbrush Acacia

(Vachellia rigidula)

Blackbrush Acacia (Vachellia rigidula)

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Estimated Native Range
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Summary

Vachellia rigidula, commonly known as Blackbrush Acacia, is a semi-deciduous shrub native to the chaparral, desert scrub, and thorn forests of northern Mexico and the Southwestern United States, including Texas. It can grow to a height of 10-15 feet (3-4.6 meters) and a width of 7-9 feet (2.1-2.7 meters). The plant is characterized by its dense, dark green foliage and spiny branches. It produces small, ball-shaped yellow flowers that are quite showy in the spring and summer, followed by seed pods that are attractive to wildlife.

Blackbrush Acacia is valued for its drought tolerance and ability to thrive in poor, rocky soils, making it a suitable choice for xeriscaping and naturalistic plantings in arid regions. It is also used for erosion control and as a barrier plant due to its thorny nature. In cultivation, it requires minimal maintenance, tolerating full sun and low water conditions once established. It prefers well-drained soils and is not particular about soil pH. While generally disease-resistant, it can be susceptible to root rot if overwatered.CC BY-SA 4.0

Plant Description

  • Plant Type: Tree, Shrub
  • Height: 10-15 feet
  • Width: 7-9 feet
  • Growth Rate: Slow
  • Flower Color: Yellow
  • Flowering Season: Spring, Summer
  • Leaf Retention: Semi-Deciduous

Growth Requirements

  • Sun: Full Sun
  • Water: Low
  • Drainage: Fast, Medium

Common Uses

Bee Garden, Bird Garden, Butterfly Garden, Deer Resistant, Fragrant, Low Maintenance, Showy Flowers

Natural Habitat

Native to chaparral, desert scrub, and thorn forests

Other Names

Common Names: Blackbrush, Blackbush, Chaparro Prieto

Scientific Names: , Vachellia rigidula, Acacia rigidula, Acacia amentacea, Acaciopsis amentacea, Acaciopsis rigidula,

GBIF Accepted Name: Vachellia rigidula (Benth.) Seigler & Ebinger