Common Name: Round-leaved Gum

General Information

Eucalyptus deanei is an evergreen tree with a large, straggling crown; it can grow 40 - 45 metres tall, occasionally reaching 65 metres. The bole is usually long and straight[, ].
The tree is harvested from the wild, and sometimes cultivated, for its wood.

Known Hazards

None known

Botanical References

Range

Australia - New South Wales, southeastern Queensland

Habitat

Essentially a tree of the closed wet sclerophyll forest mixed with several of the better eucalypts, also occurring on upper slopes and tablelands; at elevations from 30 - 1,000 metres[].

Properties

Other Uses Rating
Habit	Evergreen Tree
Height	40.00 m
Growth Rate	Fast
Pollinators	Bees, Insects
Cultivation Status	Cultivated, Wild

Cultivation Details

Eucalyptus deanei is native to the warm temperate and subtropical climate of southeastern Australia, where it is found at elevations up to 1,000 metres. Summers are hot and moist, with rainfall also often occurring in the winter months and a dry season of up to 3 months. Mean annual rainfall is within the range 900 - 1,500mm; mean maximum of the hottest month is 26 - 27°c; mean minimum of the coldest month can range from 1 - 10°c, and there can be up to 50 frosts a year, though some areas are almost frost free[].
Eucalyptus species generally require a sunny position, succeeding in a wide range of well-drained, circumneutral soils of low to moderate fertility[]. This species grows best in a moist, fertile soil[].
The plant develops a lignotuber - this is a woody tuber that starts to develop near the base of seedlings and can become massive in the mature plants of some species. It possesses embedded vegetative buds, allowing the plant to regenerate following crown destruction, for example by fire[].
Plantings have been successful in southern Brazil; excellent in Hawaii at 700 metres elevation and with 2,500mm rainfall; moderate success in South Africa[].
Eucalyptus species have not adopted a deciduous habit and continue to grow until it is too cold for them to do so. This makes them more susceptible to damage from sudden cold snaps. If temperature fluctuations are more gradual, as in a woodland for example, the plants have the opportunity to stop growing and become dormant, thus making them more cold resistant. A deep mulch around the roots to prevent the soil from freezing also helps the trees to survive cold conditions[]. Many members of this genus are remarkably adaptable however, and there can be a dramatic increase in the hardiness of subsequent generations from the seed of survivors growing in temperate zones[].

Edible Uses

None known

Medicinal

None known

Other Uses

An essential oil is obtained from the leaves. Total quantity of the oil, and its composition, can vary widely from plant to plant, but we have reports that the fresh leaves contain around 0.6% essential oil. The main components include pinene, 1,8-cineole, cymene, cuminal, phellandral, cryptone[].

The wood is hard, strong, tough, moderately durable. It has similar uses to Eucalyptus saligna[].
Eucalyptus saligna is a hard, stiff, coarse textured wood, usually straight grained, moderately durable, easy to work polishes well and does not catch fire easily. It is an important general-purpose hardwood in Australia, and is favoured for railway sleepers, construction, flooring, cladding and panelling[, ].

Propagation

Seed - surface sow late winter/early spring in a sunny position in a greenhouse[, , ]. Species that come from high altitudes appreciate 6 - 8 weeks cold stratification at 2°c[]. Pot up the seedlings into individual pots as soon as the second set of seed leaves has developed, if left longer than this they might not move well. Plant out into their permanent positions in early summer and give them some protection from the cold in their first winter. The seed can also be sown in early summer, the young trees being planted in their final positions in late spring of the following year. The seed has a long viability[].