Acacia cultriformis
Knifeleaf Acacia

A small evergreen tree with triangular to wedge-shaped leaves in gray-green. Bright yellow, ball-like flower clusters bloom in winter to early spring. A multi-trunked, bushy form serves well as a screen or barrier plant.

USDA zones: 9 - 11
Sunset zones: 12 - 24
Mature size: 10 - 15 feet high and  wide
Light needs: full sun
Water needs: little to no water