Grevillea robusta

Silk Oak, Silky Oak

Fine-textured foliage, long thin flower clusters and drought tolerance make these evergreen shrubs and trees popular. The flowers attract hummingbirds. Naturalized in southern Florida, the Silk-Oak is fast-growing. Hybrids and species abound, though some cannot tolerate salty soils or poor water quality. Choose types that fit your garden conditions. They do not do well near lawns. Well-drained, even rocky, soil is a must. Do not use high-phosphate fertilizers. Prone to leaf-eating insects, scale and mites. Diseases are few.
Grevillea robusta, Silk Oak, Silky Oak
This fast-growing, fernlike tree flowers in orange. Its leaves have silky hairs underneath.

Attributes - Grevillea robusta

Plant Type: Tree

Bloom Season: Late Spring through Early Summer

Flower Color: Orange

Foliage: Evergreen

Height: 50 ft. to 100 ft.

Width: 60 ft.

Sunlight: Full Sun

Climate: Zones 8, 9, 10, 11

Notes: Thrives in Hot Climates. Showy Flowers. Susceptible to Mealybugs, Scales.

Related Plants

Grevillea 'Boongala Spinebill', Grevillea 'Noellii', Grevillea 'Robyn Gordon', Grevillea lavandulacea 'Penola', Grevillea Victoriae
 
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