Trailing Acacia

Name: Trailing Acacia
Brand: Outdoor Dream Builders

Acacia redolens

A tough Australian groundcover valued for erosion control on banks with fragrant small yellow flowers in early spring.

Hardy in USDA zones 9-11 and evergreen through low-desert winters, tolerating brief dips to about 15-20°F with little dieback while shrugging off extreme summer heat.

AMWUA Notes

A vigorous slope stabilizer; the Desert Carpet cultivar stays lower and uses less water than open-pollinated forms.

Care Guide

💧Watering

Water deeply every 7-10 days through the first summer to establish the wide root system, then taper to every 2-3 weeks; the low cultivar Desert Carpet is far more drought tolerant than seed-grown plants.

✂️Pruning

Shear back trailing tips once or twice a year to keep it flat and dense and to stop it mounding into a shrub; remove any upright reverted branches at the base.

🌱Fertilizing

As a nitrogen-fixing legume it needs little feeding; a single light application of balanced fertilizer in early spring is plenty on poor soils.

🛡️Pests

Largely pest-free in the desert; watch for root rot where drainage is poor or irrigation is excessive.

☀️Seasonal Notes

Fragrant yellow puffball flowers appear in late winter to early spring; expect no meaningful frost damage in the low desert.

Soil, Feeding & Propagation

🪨Soil

Adapts to most well-drained desert soils including decomposed granite, rocky, and sandy loams; tolerant of poor, alkaline, and saline ground but not soggy soil.

💧Drainage

Needs well-drained soil.

🌱Nutrient Needs

Low feeder.

🌰Propagation

Semi-hardwood tip cuttings; the low Desert Carpet cultivar is grown from cuttings to stay prostrate, while the species also comes from scarified seed.

📐Spacing

6-8 ft on center for erosion-controlling coverage

🌳Roots & Placement

Deep, soil-binding roots are not invasive, but each plant spreads 8-10 ft wide, so keep well back from walks, pool decks, and turf edges.

Placement Tips

•Space plants 6-8 ft apart on banks and slopes for full erosion-controlling coverage within two seasons.
•Excellent on decomposed-granite slopes and along freeway-style embankments where its wide spread anchors soil.
•Give it full sun and room to run; crowding it against walks forces constant shearing.
•Keep set back from pool decks and walkways since a single plant can spread 8-10 ft wide.