Download Fact sheet - Acacia longifolia / Sydney Golden Wattle

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Acacia longifolia – Sydney Golden Wattle
Fabaceae - Mimosoideae
NSW/Qld border south into Vic chiefly in coastal areas across a wide
variety of vegetation communities. In HSC; Community O (107.9ha),
TI (295 ha), L (837.3 ha), A (5579.4 ha) and SF1 (4.6ha) chiefly.
Common Name:
Sydney Golden Wattle
Derivation of Name:
Acacia; Greek, derivative from the name akakia referring to a wattle
on the Nile River in Egypt with thorns. longifolia; Latin, a reference
to the generally long leaves.
Conservation Status:
Widespread in HSC where there has been recent fires, from heath to
tall forest.
Large shrub to small tree up to 6-8m in height, more often grows as a
large wide bushy shrub. Bark is smooth and greyish in colour.
Flowering occurs very heavily from early winter through early spring
with bright yellow rod shaped flowers in abundance. The foliage
(phyllodes) are up to 20mm in width, 5-20cm in length. Long narrow
drooping seed pods follow.
Approximately 10 to 20 years, with some references stating more;
longevity dependant on speed of growth. Killed by fire in the wild.
Long lived soil seed bank.
Horticultural Merit and uses:
Highly attractive small tree or large rounded shrub. Striking flower
display in late winter when nearly the entire plant is covered in
flowers. Tolerates a range of soils provided they are not overly
alkaline. Grows best in full sun, may get a bit thin and stretched in
shaded conditions. Frost tolerant. Borers may be an issue in older
trees. Other useful applications include erosion control and
windbreaks, it is a low maintenance plant. This species is a nitrogen
Fauna Value:
Heavy flowering provides resources for a wide range of invertebrates,
particularly bees. Seed pods and seeds are eaten by parrots. Older
plants attract wood boring insects.
Illustrations provided with permission of the Royal Botanic Gardens and Domain Trust