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Fabaceae FAMILY

Acacia dealbata

Acacia dealbata

Edibility
2/5
Medicinal
0/5

Safety & Hazards

Especially in times of drought, many Acacia species can concentrate high levels of the toxin Hydrogen cyanide in their foliage, making them dangerous for herbivores to eat.

Cultivation Details

HabitEvergreen Tree
GrowthFast

A plant of the warm temperate and subtropical zones, where it can be found at elevations up to 1,500 metres. It grows best in areas where annual daytime temperatures are within the range 15 - 26°c, but can tolerate 6 - 32°c[1]. When dormant, the plant can survive temperatures down to about -10°c, but young growth can be severely damaged at -1°c[1]. If the plant is cut down by frosts, it with often resprout from the base to form a thicket of slender stems[2]. It prefers a mean annual rainfall in the range 600 - 1,000mm, but tolerates 300 - 1,500mm[1]. Plants require hot, sunny summers if they are to ripen their wood fully and flower freely. Prefers a sandy loam and a very sunny position sheltered from strong winds[3, 4]. Succeeds in any good garden soil that is lime-free and well-drained[4, 1]. Prefers a pH in the range 5.5 - 6.5, tolerating 5 - 7[1]. Plants become chlorotic on limey soils[5]. They grow well in a hot dry position[2], and are very drought tolerant[6]. Fast growing[7]. Although it prefers a well-drained soil, the plant is tolerant of both drought and wet conditions[8]. The plant can be trained and grown against a sunny wall[9]. Old specimens sucker very freely, often at considerable distances from the parent tree[5]. Plants can be coppiced[10]. A very ornamental tree[3], there are some named varieties[8]. The species is cultivated in S. Europe for ornament, timber and soil stabilization[11]. The flowers are very attractive and are often sold in florists[4, 12]. The violet-like perfume of the flowers can be quite intoxicating on a calm day[6]. This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[5].

Propagation

Seed - best sown as soon as it is ripe in a sunny position in a warm greenhouse[3].The dried seed of most, if not all, members of this genus has a hard seedcoat and may benefit from scarification before sowing to speed up germination. This can usually be done by pouring a small amount of nearly boiling water on the seeds (being careful not to cook them!) and then soaking them for 12 - 24 hours in warm water. By this time they should have imbibed moisture and swollen - if they have not, then carefully make a nick in the seedcoat (being careful not to damage the embryo) and soak for a further 12 hours before sowing. Sow the seed in Spring in a greenhouse. As soon as the seedlings are large enough to handle, prick them out into individual pots and grow them on in a sunny position in the greenhouse for their first winter. Plant them out in late spring or early summer, after the last expected frosts, and consider giving them some protection from the cold for their first winter outdoors. Acacia seeds that have matured fully on the bush and have been properly dried have a hard seed coat and can be stored in closed containers without deterioration for 5 - 10 years or more in dry conditions at ambient temperatures. It is best to remove the aril, which attracts weevils and can lead to moulds forming. The arils are easilyremoved by placing the seeds in water and rubbing them between the hands, then drying the seeds and winnowing them[13]. Cuttings of half-ripe wood with a heel, mid summer in individual pots in a frame[14]. Overwinter in a greenhouse for the first winter and plant out in their permanent positions in late spring or early summer. Fair percentage[14]. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-20. <temperate.theferns.info/plant/Acacia+dealbata>

Pollinators

Data unavailable

References

  1. [1]Ecocrop — http://ecocrop.fao.org/ecocrop/srv/en/home ↩︎Basic information on a wide range of useful plants, plus details of environmental needs where available.
  2. [2]The Milder Garden. — Taylor. J. · Dent · 1990 ↩︎A good book on plants that you didn't know could be grown outdoors in Britain.
  3. [3]RHS Dictionary of Plants plus Supplement. 1956 — F. Chittendon. · Oxford University Press · 1951 · ISBN - ↩︎Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [ 200 ]).
  4. [4]Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. — Bean. W. · Murray · 1981 · ISBN - ↩︎A classic with a wealth of information on the plants, but poor on pictures.
  5. [5]The New RHS Dictionary of Gardening. 1992. — Huxley. A. · MacMillan Press · 1992 · ISBN 0-333-47494-5 ↩︎Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
  6. [6]Scented Flora of the World. — Genders. R. · Robert Hale. London. · 1994 · ISBN 0-7090-5440-8 ↩︎An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.
  7. [7]The Garden. Volume 112. — RHS. · Royal Horticultural Society · 1987 · ISBN - ↩︎Snippets of information from the magazine of the RHS. In particular, there are articles on plants that are resistant to honey fungus, oriental vegetables, Cimicifuga spp, Passiflora species and Cucurbits.
  8. [8]Conservatory and Indoor Plants Volumes 1 & 2 — Phillips. R. & Rix. M. · Pan Books, London. · 1998 · ISBN 0-330-37376-5 ↩︎Excellent photos of over 1,100 species and cultivars with habits and cultivation details plus a few plant uses. Many species are too tender for outdoors in Britain though there are many that can be grown outside.
  9. [9]Climbers and Wall Shrubs. — Davis. B. · Viking. · 1990 · ISBN 0-670-82929-3 ↩︎Contains information on 2,000 species and cultivars, giving details of cultivation requirements. The text is terse but informative.
  10. [10]Growing from Seed. Volume 2. — Rice. G. (Editor) · Thompson and Morgan. · 1988 · ISBN - ↩︎Very readable magazine with lots of information on propagation. An interesting article on Ensete ventricosum.
  11. [11]Flora Europaea — ? · Cambridge University Press · 1964 · ISBN - ↩︎An immense work in 6 volumes (including the index). The standard reference flora for Europe, it is very terse though and with very little extra information. Not for the casual reader.
  12. [12]A Dictionary of Plants Used by Man. — Usher. G. · Constable · 1974 · ISBN 0094579202 ↩︎Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.
  13. [13]Potential of Australian Acacias in combating hunger in semi-arid lands — Rinaudo A.; Patel P.; Thomson L.A.J. · 2002 ↩︎
  14. [14]Propagation of Trees, Shrubs and Conifers. — Sheat. W. G. · MacMillan and Co · 1948 · ISBN - ↩︎A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
  15. [15]The Useful Native Plants of Australia. — Maiden J.H. · Turner & Co.; London. · 1889 · http://www.biodiversitylibrary.org ↩︎Terse details of the uses of many Australian plants and other species naturalised, or at least growing, in Australia. It can be downloaded from the Internet.
  16. [16]Invasive Species Compendium — http://www.cabi.org ↩︎An immense resource - in depth information on over 900 species of invasive plants (it also has information on animals, fungi etc).
  17. [17]Flora of Australia — http://www.anbg.gov.au/abrs/abif/flora/ ↩︎The full information from the Flora of Australia - on-line. An excellent resource.
  18. [18]Wild Food in Australia. — Cribb. A. B. and J. W. · Fontana · 1976 · ISBN 0-00-634436-4 ↩︎A very good pocket guide.
  19. [19]Dictionary of Economic Plants. — Uphof. J. C. Th. · Weinheim · 1959 · ISBN - ↩︎An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
  20. [20]Economic Native Plants of New Zealand. — Brooker. S. G., Cambie. R. C. and Cooper. R. C. · Oxford University Press · 1991 · ISBN 0-19-558229-2 ↩︎An interesting and readable book on the useful plants of New Zealand.
  21. [21]Vegetable Gums and Resins. — Howes. F. N. · Faber · ISBN 81-88818-17-8 ↩︎A very good book dealing with the subject in a readable way.
  22. [22]Wild Food Plants of Australia. — Low. T. · Angus and Robertson. · 1989 · ISBN 0-207-14383-8 ↩︎Well presented, clear information and good photographs. An interesting read for the casual reader as well as the enthusiast
  23. [23]Nature's Colors - Dyes from Plants. — Grae. I. · MacMillan Publishing Co. New York. · 1974 · ISBN 0-02-544950-8 ↩︎A very good and readable book on dyeing.
  24. [24]Florabank Fact Sheets — http://www.florabank.org.au/lucid/key/Species%20Navigator/Media/Html/index.htm#D ↩︎An excellent on-line publication. At present their are 132 species in the list, giving lots of information on growing and using the plants, plus information on their climatic tolerances, distribution maps and photographs.
  25. [25]Economic Botany. — Hill. A. F. · The Maple Press · 1952 · ISBN - ↩︎Not very comprehensive, but it is quite readable and goes into some detail about the plants it does cover.
  26. [26]Vegetable Tannins — Rottsieper. E.H.W. · The Forestal Land, Timber and Railways Co. Ltd. · 1946 · ISBN - ↩︎A fairly detailed treatise on the major sources of vegetable tannins.
  27. [PFAF]Plants for a Future — pfaf.org ↩︎