ACACIA DEALBATA (MIMOSA)
Information · 7 months ago
Fast growing little evergreen tree - the classic Mimosa with the ferny leaves. Masses of fragrant yellow flowers in spring. Requires full sun and reasonably well drained (but not chalky) soil. The flowers are yellow, fragrant and copious. They form in the autumn but don't come out until early spring, so don't prune after late summer if you want flowers the following spring. As with most trees, they're programmed to go straight up to find the light (whether they need to or not). On a young tree this can give the impression that they're destined to be tall and slender which they're not. Most Acacias reach a height of about 15-25ft and grow out. The eventual shape of a mature tree is quite squat and wide. Man appears to have dominion over most living things so you can always shin up a ladder and give it a haircut. It won't mind - just do it after flowering (April) unless you dislike the flowers in which case you can do it earlier. Left to their own devices, relatively short (25ft ish), quite broad and not dense. A marvellous tree for screening (they take your eye away without cutting all the light out) but unfortunately not reliably frost hardy except in large built up or coastal areas. If damaged in exceptionally cold winters, a well established tree will often re shoot from the base; a new lease of life. In early March, you suddenly begin to realise how un-rare (I can't say common) these are. Clouds of yellow flowers all over the place but generally in areas whose phone number begins 0208 or 0207 or within 6 or 7 miles of the coast. Propagated by us by seed. N.B. When clipping several plants with the same tool, have a bucket containing a 5% bleach solution and swish your blades around for 30 seconds between plants to sterilise them. This will help avoid the chance of cross contamination of disease. As with all woody plants, plant high, exposing as much of the taper at the base of the trunk as possible. Allowing soil to accumulate round the base of a tree can be fatal. Keep very well watered when first planted.
