Botanical Name: Acacia cultriformis
Common Name: Knife Acacia, Knife Blade Acacia  
Plant photo of: Acacia cultriformis
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Water Saving Tip:

Even during our hottest months we don't need to water daily.

Give your plants a chance to breathe.

Water late at night or in the early morning hours to avoid losses to wind and evaporation.

  • Anatomy

  • Culture

  • Design

Plant Type

Tree, Shrub


Height Range



Flower Color



Flower Season

Winter, Spring


Leaf Color

Grey Green


Bark Color



Fruit Color



Fruit Season



Full, Half



Very Low, Low


Growth Rate



Soil Type

Sandy, Clay, Loam, Rocky, Unparticular


Soil Condition

Average, Poor, Well-drained


Soil pH

Neutral, Basic


Adverse Factors


Design Styles

Mediterranean, Seascape, Spanish


Accenting Features

Multi-trunk Tree, Unusual Foliage


Seasonal Interest



Location Uses

Background, Foundation


Special Uses

Cut Flowers, Erosion Control, Screen


Attracts Wildlife


Information by: Jerry Sortomme Editor
Photographer: Jerry Sortomme SBCC
  • Description

  • Notes

This evergreen shrub will grow about 10-15' tall and 10-15' wide. It has small, silvery gray, very uniquely shaped leaves. It has clusters of yellow flowers that bloom in late winter to early spring. Somewhat cold sensitive.
Planting Instructions: 1. Dig a hole 2 times the width and 1 and 1/2 times the height of the container. 2. Set rootball at ground level. 3. Prepare soil mix of equal parts soil and soil amendment. 4. Backfill with amended soil. 5. Build Basin and water.