Tasmanian Blackwood - its potential as a timber species

Authors: C.D. Gleason
Publication: New Zealand Journal of Forestry, Volume N.Z.J.For. 1986, Issue N.Z.J.For. 31(1) 1986, pp 6-12, May 1986
Publisher: New Zealand Institute of Forestry

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Abstract: Tasmanian blackwood (Acacia melanoxylon) is an erect Australian forest tree which in exceptional conditions may reach 130-150 cm diameter at breast height, 40-45 m in height and live over 200 years. The species prefers a mild temperate climate and moist soils, but will tolerate low fertility or gley ed soils. It develops best on sheltered sites and in the presence of a nurse species or may be grown in "light wells" or canopy gaps.

'1 'he species has had a reputation since the 19th century for providing high-quality ornamental timber for use in turnery, cabinet and furniture making and as panelling. The dark heartwood, which forms early, is particularly sought after. Logs are readily sawn or sliced for veneer; the timber is easily seasoned.

As an exotic it has been most extensively grown in India and South Africa and shows promise in New Zealand, especially on the West Coast of the South Island. Rotations of 40 years should produce trees of 50-60 cm dbh and with an acceptable amount of heartwood. Pinhole borers and the ghost moth, found in Northland, may prove limiting.

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