Black wattle (Acacia mearnsii)
Care, watering, light and tips for Black wattle on Floravia.
Quick facts
- Family: Fabaceae
- Difficulty: Easy to care for
- Watering: every 7 days
- Light: Full sun
- Temperature: 5–35 °C
- Toxicity: Toxic to pets
About Black wattle
Acacia mearnsii, commonly known as Mearns' Wattle or Black Wattle, is a fast-growing evergreen tree native to Australia. It is characterized by its finely divided, dark green foliage and clusters of fragrant, pale yellow flowers that bloom in spring. This plant is ideal for establishing windbreaks, for soil rehabilitation in degraded areas, or as an ornamental tree in suitable climates.
Native range
Southeastern Australia and Tasmania
Care tips
It prefers full sun exposure for optimal growth and abundant flowering. It is drought-tolerant once established, but moderate watering during dry periods will promote its development; avoid waterlogging. It adapts to a wide range of soils, though it prefers well-drained and slightly acidic soils. A common mistake is planting it in areas with severe and prolonged frosts, as it does not tolerate them well.
How to save a dying Black wattle
- Warning signs
- Wilted, yellowing, or brown-spotted leaves. Premature leaf drop.
- First aid
- Ensure good drainage, water deeply if soil is dry. Protect from strong cold and winds. Check for pests.
- What kills it
- Overwatering (root rot) or very clayey, compacted soils. Lack of direct sunlight.
- Can it be saved?
- Yes, if roots aren't completely rotted and the trunk still shows vitality.