Black Wattle
Acacia mearnsii

Family: Mimosaceae
Genus: Acacia (a-KAY-see-uh)
Species: mearnsii (MEARN-zee-eye)

Category
Trees

Foliage Color

Bloom Characteristics
Flowers are fragrant

Water Requirements

Where to Grow

Height
20-30 ft. (6-9 m)
30-40 ft. (9-12 m)
over 40 ft. (12 m)

Spacing
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)

Hardiness
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure
Full Sun
Sun to Partial Shade

Danger
Plant has spines or sharp edges; use extreme caution when handling
Pollen may cause allergic reaction

Bloom Color
Pale Yellow

Bloom Time
Mid Spring
Late Spring/Early Summer

Foliage
Evergreen

Other details
May be a noxious weed or invasive

Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information
Non-patented

Propagation Methods
From semi-hardwood cuttings
From seed; direct sow after last frost
Scarify seed before sowing

Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored