Black wattle
3
1
5Will it grow where I live?
Black wattle is only hardy to zone 8, so outdoors year-round it needs the mildest spots in Central Europe – wine-growing regions, the Rhine valley, coasts, Lake Constance, Ticino – or a container overwintered under cover. Most of the British Isles and the Pacific coast of North America qualify. It also needs warm summers – in Central Europe that means wine-growing regions, cities or a sheltered south-facing wall.
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Profile
- Family
- Fabaceae
- Habit
- Tree
- Height
- 11.5 m
- Spread
- 6 m
- Growth
- very fast
- Lifespan
- 40 years
- First yield
- after 3 years
- Hardiness
- zone 8–9
- Shade tolerance
- full sun
- Soil
- Sand, Silt
- Soil moisture
- very dry – moist
- pH
- 5.9 – 7
Uses
Origin & habitat
Sheltered woodland, mainly on sandstone. Usually on cool, moist hills and erosion gullies in Australia.
Frequently asked questions
Black wattle: how big does it get?
Black wattle (Acacia decurrens) grows as a Tree and reaches roughly 11.5 m in height when mature, with a spread of about 6 m. Growth is very fast.
Black wattle: what site does it need?
Black wattle tolerates full sun. Suitable soils are Sand, Silt. Soil moisture should be in the range very dry – moist. The pH may lie between 5.9 and 7.
Black wattle: is it hardy?
Black wattle is listed as hardy in zone 8–9 and survives normal winters outdoors there.
Black wattle: will it grow in Central Europe?
Black wattle is only hardy to zone 8, so outdoors year-round it needs the mildest spots in Central Europe – wine-growing regions, the Rhine valley, coasts, Lake Constance, Ticino – or a container overwintered under cover. Most of the British Isles and the Pacific coast of North America qualify. It also needs warm summers – in Central Europe that means wine-growing regions, cities or a sheltered south-facing wall.
Black wattle: is it poisonous?
No toxicity is recorded for Black wattle. With wild plants, never rely on a database alone — only on a confident identification.
Black wattle: what is it used for?
Rated on a scale up to 10: Edible 3/10, Medicinal 1/10, Other uses 5/10.
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Community experience
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