Acacia mearnsii, the Black Wattle, is a fast-growing Acacia that has proved to be one of the hardiest in the UK. Native to the South-Eastern states of Australia, including Tasmania, the Black Wattle has a tall growing greenish-black trunk, forming a canopy to 5 m of delicate compound bipinnate foliage that is so characteristic of the Acacias. The inflorescences - again characteristic of the genus - are racemes of creamy pale-yellow flowers arranged as globular heads on thick golden peduncles.
Here in the UK, the climate and cold weather create the natural limitations of growth for Acacia mearnsii and what in many warmer parts of the world is considered an invasive species here becomes an attractive small tree with a particularly delicate foliage.
Acacia mearnsii is a highly ornamental plant with a very attractive fragrant blossom and a gorgeous soft and very exotic-looking ferny foliage.
A legume, it will help to fix nitrogen into your soil and its large umbrella-like evergreen canopy can provide useful overhead protection for smaller more-tender plants growing below.
One of the world's most important tannin crops, Acacia mearnsii has also been used as a bio-fuel and source of charcoal.
|Synonyms||Acacia decurrens, Acacia decurrens var. mollis, Acacia mollissima, Albizia mearnsii, Racosperma mearnsii|
|Geographical Origin||Australia: NSW, Victoria, South Australia, Tasmania|
|Cultivation||Sheltered position in full sun or partial shade|
|Eventual Height||6-8 m|
|Eventual Spread||4-6 m|
|Hardiness||Hardy down to at least -7 C it will probably take lower temperatures once established|
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