Prickly, woody, spreading, evergreen shrubs >3m tall. Stiff, sharp, needle-like leaves. Clusters of small, white flowers (Jun-Aug) close to the stem. Woody fruit beaked with winged black seeds. Downy hakea has longer, more pliable spines, hairy stems & larger fruit.
Roadsides, open hillsides, shrublands. Prefers open, sunny positions.
Winged seed dispersed by wind & colonises well after a fire. Also spreads from hedges.
Form dense stands that spread quickly but as they act as nursery tree they are not considered serious pests. May decrease recreational use of an area because of spiny habit.
Avoid fire at all times, implement fire protection strategy. Most sites can be left to regenerate to native spp. provided fire can be permanently avoided.
1. Leave for natural succession (8-20 years). Can be accelerated by felling plants in sites of dense native vegetation. Best done in winter to maximise regeneration & minimise fire risk.
2. Pull out small plants.
3. Cut below lowest leaves, no herbicide is necessary on stump.
4. In autumn, make 1 cut per 100mm stem diameter & fill each cut with 2g metsulfuron (dissolved in approx 50ml water).
5. Spray small plants in autumn (5g metsulfuron + 10ml penetrant/10L).
Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.