Botanical Name: Acacia cultriformis
Common Name: Knife Acacia
Type of Plant: dicot: tree/shrub
Character evergreen
 
Habit of Growth:
Overall Shape an irregular, multi-trunk, erect to somewhat sprawling plant, with ascending and spreading branches forming a loose open canopy
Height 8' - 20'
Spread 2/3 to equal
Growth Rate moderate
 
Environment:
Exposure outdoors full or partial sun
Soil well-draining soils
Hardiness some frost (zones 13-24); prefers warm sunny locations
 
Morphology:
Leaves modified petioles (phyllodes); resemble pinnate leaves; alternate to whorled, nearly triangular, 1/2" - 1" long, 1/2" wide; mucronate, gray, leathery
Flowers small round heads of tiny yellow flowers, in axillary racemes; many stamens; early spring
Fruit a pod; 1 1/2" - 3" long, flat, deep brown
 
Propagation:
seed
 
Usage:
an interesting small accent tree, valued for its open form, distinctive foliage, and yellow flower display; background loose hedge or screen, slopes; patio tree, small silhouette
 
Landscape Care:
Watering an occasional soaking; becomes fairly drought tolerant after established; avoid lawn watering
Fertilizing little needed except where overwatered; becomes chlorotic in wet soils
Pruning as a tree, develop primary scaffold framework; thin out occasionally to maintain a loose open form
Pests/Diseases relatively free
Special Conditions/Other
 
Origin: Australia
Family: Fabaceae

Notes:
 
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