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Blackbrush Acacia

Vachellia rigidula

Last reviewed: October 2026

Blackbrush Acacia (Vachellia rigidula)
Photo: (c) Adriana Nelly Correa Sandoval, some rights reserved (CC BY)

Toxicity unknown

Blackbrush Acacia (Vachellia rigidula) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part sun

Water

medium

Size

72"–228" H × 24"–48" W

Bloom

Mar, Apr, May

Native to

TX

Pollinators

butterflies, bees, moths

Before you buy

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Browse plants for this ecoregion

Chihuahuan DesertsEdwards PlateauSouthern Texas PlainsEast Central Texas PlainsWestern Gulf Coastal Plain

Blackbrush Acacia is a small native tree that grows 6-19 feet tall with a narrow, upright form. It produces fragrant yellow flower clusters in spring and has small compound leaves that drop in winter. The tree develops attractive bark texture and can handle drought conditions once established.

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In an HOA neighborhood

Blackbrush Acacia is an HOA-friendly choice in the right placement. Maintenance level: moderate. Tidiness: 3 out of 5.

Works well in: front yard, mid zone.

  • Trees often require HOA/ARC approval even when allowed.
  • Verify setbacks from sidewalks, driveways, utilities, and structures.
  • Confirm mature height/canopy limits and sightline rules for corners.

Wildlife value

The fragrant spring blooms attract butterflies, bees, and moths for nectar. Seeds provide food for birds and small wildlife.

Common questions

How much sun does Blackbrush Acacia need?
Blackbrush Acacia grows best in part sun conditions.
When does Blackbrush Acacia bloom?
Blackbrush Acacia blooms in March, April, and May.
Where is Blackbrush Acacia native?
Blackbrush Acacia (Vachellia rigidula) is native to TX, per vouchered herbarium specimen records and regional native plant society lists.
What pollinators does Blackbrush Acacia attract?
Blackbrush Acacia draws butterflies, bees, and moths.
Is Blackbrush Acacia HOA-friendly?
Blackbrush Acacia is generally an HOA-friendly choice in the right placement, with moderate maintenance.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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