Victorian blue gum
A fast-growing Eucalyptus preferring 900 mm+ of rainfall annually and clay-based soils. Good pulp species and may be an option on sites that are too dry for Tasmanian Blue Gum.
Victorian blue gum |
|
Botanical name |
Eucalyptus globulus ssp.bicostata |
Growth rate in preferred conditions |
Fast |
Estimated rotation length (yr) in preferred conditions to produce 60 cm diameter at breast height |
20-30 |
Preferred annual rainfall (mm/yr) |
900+ |
Minimum rainfall (mm/yr) |
750+ |
Preferred elevation (m) asl |
0-500 |
Preferred landscape position |
Mid-lower slopes and flats. |
Preferred Soil |
Clay based soil |
Prohibitive soil |
Uniform sands |
Poor drainage tolerance |
Moderate |
Dry site tolerance |
Moderate |
Frost tolerance |
Moderate to high |
Pest and disease problems: |
Sawfly larvae, Autumn Gum Moth, Lerps, Tip feeders, Christmas beetles |
Timber Characteristics1 |
|
Strength: seasoned timber only |
SD2-high |
Durability1: in ground | above ground |
3 | 2 |
Drying: green to 12% moisture content |
Difficult to dry. High shrinkage. Reconditioning required. Shrinkage about 6% radial and 12% tangential. |
Main commercial products |
Pulp, light and heavy construction, internal flooring, posts and poles, sleepers, tool handles, joinery |
Bushfire resistance2: measured by Bushfire Attack Level (BAL) |
BAL 12.5 and 19 – All AS3959 required applications |
Least attractive features |
Log end splitting and difficult to dry. Susceptibility of juvenile foliage to pests. Sapwood susceptible to Lyctid borer. |
Most attractive features |
Good pulp species. May be an option on sites that are too dry for Tasmanian Blue Gum. |
Status as a plantation species in Gippsland |
Not recognised as a plantation species in Gippsland. |
1 Based on Australian Standard: Timber Natural durability ratings. AS 5604-2005. Refer to Appendix for explanatory table. Where (?) applied, rating is based on field experience. 2 Naturally bushfire resisting timbers are those with inherent bushfire resisting properties. For more information refer to Australian Standard 3959:2018. |
Assumptions and notes:
- Sites considered for planting contain at least 1 metre of soil above an impeding layer (e.g. bedrock or layer impenetrable to roots.)
- Please note that most (if not all) eucalypts in Gippsland grow best on sheltered sites.
- Overall slow drying time across air and kiln dried schedules is recommended to minimise drying degrade. This is the best starting point for inexperienced operators.
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