Acacia Mearnsii - Black Wattle
Please note, as living products, our trees naturally vary in size and appearance throughout the seasons. The photos on our website are provided as a helpful guide, but may not always reflect our current batches.
We always aim to deliver stock as pictured, but some variation is to be expected. For up-to-date sizing, please refer to our current height guide. If you’d like to see photos of our current stock, just let us know—we’re happy to send them!
The Acacia mearnsii – Black Wattle is a fast-growing, evergreen native tree (6–10m H × 4–6m W) with a dense, rounded canopy and fine-textured, dark green bipinnate foliage. It looks excellent in rural landscapes, large native gardens, or along boundary lines where fast coverage, shade, or shelter is needed. Bright yellow, ball-shaped flowers appear from late winter to early spring, attracting pollinators and adding strong seasonal contrast.
Acacia mearnsii – Black Wattle thrives in full sun to part shade and adapts to poor, dry, or degraded soils. Drought-tolerant once established and ideal for windbreaks, erosion control, reforestation, and habitat planting.
Use where rapid establishment and resilience are priorities. Best suited to larger areas—avoid in confined or formal garden spaces.
Mature Height:
Mature Width:
4m – 6m
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About This Tree
Botanical Profile
Explore the essential characteristics and growth habits of this plant, curated to assist you in making an inspired and confident choice for your landscape.
Mature Height
Mature Width:
4m – 6m
Approx. 80 – 120 cm/year (Very fast)
Evergreen (foliage year round)
Frost Hardy – Survives heavy and frequent frost without damage.
Acacia Mearnsii - Black Wattle is considered:
Yes
Flower Colour: Yellow
Flower Type:
Flowering Period
As Featured In
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FAQ
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Planting Guide
Plant Spacing
How to Plant Acacia Mearnsii - Black Wattle
Root Ball Dimensions (Width × Depth) For Planting
Use this as a reference when digging your planting hole. We recommend digging at least 10% wider than the dimensions below to encourage strong root development.
- 30cm Pot: 33cm (W) × 30cm (D)
- 40cm/45L Pot: 44cm (W) × 41.5cm (D)
- 50cm Pot / 70L Pot: 55cm (W) × 41.8cm (D)
- 100L Bag: 50.6cm (W) × 52.8cm (D)
- 150L Bag: 66cm (W) × 55cm (D)
- 200L Bag: 71.5cm (W) × 60.5cm (D)
- 300L Bag: 88cm (W) × 63.8cm (D)
- 400L Bag: 99cm (W) × 66cm (D)
- 500L Bag: 122cm (W) × 66cm (D)
- 750L Bag: 134cm (W) × 69cm (D)
- 1000L Bag: 146.3cm (W) × 71.5cm (D)
- 2000L Bag: 176cm (W) × 82.5cm (D)
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Evergreen Trees Direct is Australia's unrivaled supplier of the highest quality advanced tree stock. Our extensive supplier network allows us to provide a one-stop shop for all your landscaping needs, no matter how big or small the project. We pride ourselves on exceptional service, ensuring a seamless experience from selection to delivery. Trust us to bring your landscaping vision to life with the perfect trees for any outdoor space. With our unrivaled selection and commitment to service, Evergreen Trees Direct is the top choice for landscapers, property developers, and garden enthusiasts alike.
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