Medium-sized deciduous tree about 14 m tall with flat crown. Bark is fairly smooth, light brown and vertically striped when older. Leaves are 20 x 10 cm and bi-pinnately compound, with < 12 pairs of pinnae each bearing 30 pairs of oblong leaflets. Flowers have a cluster of silky-looking white/pink/red stamens and are borne in inflorescences in spring. Seedpods are flat, papery and ripen in February – March.
Although silky acacia is not a legally declared pest plant, it may still be invasive in some situations. Consider lower risk alternatives for your garden, such as native plants.
Disturbed sites, riparian and forest margins, scrub, urban areas, gardens, roadsides.
Seeds dispersed by water and gravity. Human-mediated dispersal through deliberate plantings and movement of contaminated soil.
Can form dense stands, outcompeting native vegetation. Nitrogen fixer.
Follow up treated areas 3 times per year. Encourage natural regeneration of native plants or replant treated areas where possible after 2-3 treatments to establish dense ground cover and minimise reinvasion.
CAUTION: When using any herbicide or pesticide please read the label thoroughly to ensure that all instructions and safety requirements are followed.