Whitethorn Acacia

(Vachellia constricta)

Whitethorn Acacia (Vachellia constricta)

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Estimated Native Range
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Summary

Vachellia constricta, commonly known as Whitethorn Acacia, is a deciduous shrub or small tree native to arid and semi-arid regions including deserts, grasslands, and scrublands in the Southwesten United States and Mexico. It typically grows to a height of 2 meters (6.6 ft) and has a spiny, thorny appearance. The plant is characterized by its small, yellow puffball flowers about 1 cm in diameter, which bloom in late spring (April–May) and may have a second flowering period from July to October if conditions are favorable. The flowers are not particularly attractive to pollinators due to their lack of nectar and minimal pollen. The foliage of Whitethorn Acacia is adaptive, with leaves that may drop in response to drought or cold temperatures to conserve water.

Whitethorn Acacia is valued for its drought tolerance and ability to thrive in challenging environments, making it suitable for xeriscaping and desert gardens. It is also used as a barrier hedge due to its thorny branches. In cultivation, it requires full sun exposure and well-drained soils, preferring low water conditions once established. This species is often cultivated by specialty nurseries for its ornamental qualities and its ability to provide habitat and cover for wildlife. Gardeners should be aware that the thorns can make handling and pruning a challenge, and appropriate care should be taken to avoid injury.CC BY-SA 4.0

Plant Description

  • Plant Type: Shrub, Tree
  • Height: 8-10 feet
  • Width: 12-15 feet
  • Growth Rate: Slow
  • Flower Color: Yellow
  • Flowering Season: Spring
  • Leaf Retention: Deciduous

Growth Requirements

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

Common Uses

Bee Garden, Bird Garden, Butterfly Garden, Drought Tolerant, Edible*Disclaimer: Easyscape's listed plant edibility is for informational use. Always verify the safety and proper identification of any plant before consumption., Fire Resistant, Fragrant, Low Maintenance, Showy Flowers

Natural Habitat

Native to arid and semi-arid regions including deserts, grasslands, and scrublands in the US Southwest and Mexico

Other Names

Common Names:

Scientific Names: Vachellia constricta , Acacia constricta , Acacia constricta var. constricta , Acacia constricta var. paucispina , Mimosa arcuata , Acaciopsis constricta , Acaciopsis constricta var. paucispina

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