Silver Wattle Acacia dealbata Seeds

SILVER WATTLE Seeds

Botanical Name: Acacia dealbata
Other Names: Silver Wattle, Blue Wattle, Mimosa

• Fast-growing Australian native tree with distinctive silver-grey, finely divided foliage.
• Highly ornamental and widely planted for its spectacular masses of bright yellow, fragrant flowers.
• Flowers from late winter to early spring, providing an important early nectar and pollen source for insects.
• Strong nitrogen-fixing species that improves soil fertility and supports regeneration of degraded land.
• Adaptable to a wide range of climates and soil types, including poor and disturbed soils.
• Excellent pioneer species for erosion control, revegetation, and land rehabilitation.
• One of Australia’s most recognisable and iconic native wattles.

Plant Details

• Plant Type: Medium to large native tree
• Plant Height: 6–15 m tall; 4–8 m wide

Sowing Information

• Germination: 2–4 weeks after scarification
• Depth: Sow 5–10 mm deep
• Position: Full sun to light shade
• Sow Where: Seedling trays or forestry tubes; transplant once well established
• Soil Type: Well-drained soils; tolerates clay, loam, sandy, and low-fertility soils
• Spacing: 3–6 m between trees

Growing Tips

• Scarify seeds by pouring boiling water over them and soaking for 12–24 hours before sowing.
• Use a free-draining native or forestry potting mix to prevent waterlogging.
• Water regularly during establishment; drought-tolerant once mature.
• Prune lightly if needed to manage size or shape in garden settings.

Flowering

Bright golden-yellow flower balls appear in large sprays from late winter to early spring, creating a striking display and supporting pollinators during cooler months.

Traditional & Practical Uses

• Traditionally valued for timber, fuelwood, and ornamental planting.
• Widely used in revegetation, shelter belts, and soil stabilisation projects.
• Improves soil structure and fertility through nitrogen fixation.

When to Sow Silver Wattle in Your Climate