Grevillea robusta (Silky Oak)

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Plant description

This tree can vary a great deal in height, from small to large. It has dark grey bark, dark green lobed foliage and stunning golden-orange flowers. This tree is used widely in gardens, but is also very useful to control erosion around stream and river banks, and to reclaim old pasture land. The Silky Oak is one of the most popular ornamental native trees in Australia, and are widely grown here and also overseas as shade-trees and for their ability to adapt. These trees are renowned for their spectacular floral display, and are great for attracting wildlife as the nectar-rich flowers provide food for birds and bats. 

Further reading: Australian Native Trees and Top Gum Trees for Gardens (articles written by native plant expert Angus Stewart).

Additional plant information

Flowers

Flower colour: Orange or Gold
Flowering season: spring summer

Plant size

Maximum height: 30 metres
Minimum height: 10 metres

Maximum width: 20 metres
Minimum width: 5 metres

Sunlight, frost & salt tolerance

This plant will tolerate full or partial sunlight.
Light frost tolerance.
Plant is not salt tolerant.

Fauna attracting?

Yes. Attracts: Yes; birds and fruit bats.

Climate

This plant species will grow in the following climates: temperate, subtropical, tropical, arid.

Soil types & conditions

Loam: dry, moist, well-drained.

Clay: dry, moist, well-drained.

Sand: moist, well-drained.

Miscellaneous information

Native to: Australia.

Planting season: not specified.

Types of fertiliser: not specified.

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