Silver Wattle

Silver Wattle

Silver Wattle Acacia dealbata

Scientific Name

Acacia dealbata

Family Name

MIMOSACEAE

Common Name

Silver Wattle

General Information

Height 5.0m - 30.0m (500-3000cm)
Flowers Bright yellow, prolific. Globular flower heads in racemes or panicles.
Fruit Seed pods
Municipalities Small to medium tree with growth varying with conditions
Communities Dry Eucalypt Forest and Woodland; Riparian; Wet Eucalypt Forest
Habitat Notes Tolerates a wide range of soils, except poorly drained or permanently wet soils. Best growth on moist, fertile sites. Tolerates strong winds, frost and snow.
Site Tolerance Dry; Exposed; Moist; Rocky; Windy
Frost Tolerance Hardy
Soil Tolerance Clay; Fertile; Loam; Poor; Sandy; Well-drained
General Notes A hardy, widespread species. Very fast growing. Pioneer species, good "nurse" plant to shelter other species. Fixes nitrogen. Fire retardant. Prone to attack by gall rusts, caterpillars and borers. Foliage is palatable to stock. Used for cut flower and foliage industry. Timber used for furniture, pulp. Bark tannin can be used for tanning. Fast-burning firewood, but poor fuel compared to other wattles. Establishes well from direct seeding. Natural regeneration common from seed or suckers. Excellent wildlife habitat. Susceptible to browsing by hares and rabbits. Koori (mainland) use: The wood was used for the handles of stone axes, with the gum used to fasten the head to the handle. The gum was eaten, or dissolved in water with nectar to make a sweet drink.Resistant to Phytophthora cinnamomi. Not suitable below powerlines.

Propagation Details

Flowering Months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Seed Collecting Months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sowing Months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Cutting Months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Seed Information

Seed Collection Seeds drop soon after they turn brown. produces large crops every 2-3 years
Seed Treatment Method Boiling water
Seed Storage Life Long
Viable Seeds Per Gram 45-84
Seed Treatment Notes Usually high viability and very long storage life. Seed may persist in soil for 50 years.
Germination Time 2-4 weeks

Cuttings

Propagation By Division N.B. Transplant only from nearby to avoid disease.
Cutting Notes Most Acacias are readily propagated by seed. Cuttings are possible with "phyllode bearing" Acacias, more so than with "feathery leaved" species.