Silky Oak

Grevillea robusta

Physical Characteristics

Grevillea robusta is an evergreen Tree growing to 30 m (98ft) by 15 m (49ft) at a fast rate. See above for USDA hardiness. It is hardy to UK zone 9. It is in leaf all year, in flower from April to May. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid and neutral soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil and can tolerate drought.

Distribution

Australia - New South Wales, Queensland.

Habitats

Woodland Garden Secondary; Sunny Edge; Dappled Shade;

Edible Uses

Edible Parts: Nectar Edible Uses: Gum The flowers are one of the richest sources of nectar[183]. This can be sucked directly from the flowers, shaken into a bowl or washed out in a small quantity of water[183]. The nectar falls in showers when the flowers are shaken[144].

Medicinal Uses

None known

Known Hazards

None known