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Silk Oak

Grevillea Robusta

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Overview

The Silk Oak, or Grevillea robusta, is an elegant evergreen with fern-like foliage, growing up to 100 feet tall with a spread of 20-30 feet. Its nectar-rich, orange blossoms emerge in spring, attracting pollinators. Native to Australia, it thrives in USDA Zones 9-11, preferring full sun and well-drained soil. This fast-growing tree is drought-tolerant, making it an ideal focal piece for large landscapes requiring minimal maintenance.

Sun FullWater Low, Very LowZones 8–10Type Tree
Silk Oak (Grevillea Robusta) — scientifically known as Grevillea robusta; and it's recommended to plant it away from areas with heavy pedestrian, image 57

Culture

Sun
Full
Water
Low, Very Low
USDA zones
8–10

Shape & size

Mature height
50–60 Ft.
Mature width
30–40 Ft.

Classification

Type
Tree
Family
Proteaceae

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Photos (98)

Silk Oak (Grevillea Robusta) — and it's recommended to plant it away from areas with heavy pedestrian traffic; as it has an aggressive root system that can
Silk Oak (Grevillea Robusta) — Its nectar-rich, orange blossoms emerge in spring, attracting pollinators; it requires full sun exposure to thrive, image 53
Silk Oak (Grevillea Robusta) — This fast-growing tree is drought-tolerant; scientifically known as Grevillea robusta, image 55
Silk Oak (Grevillea Robusta) — Regular pruning will help maintain its shape and prevent excessive spread; is an elegant evergreen with fern-like foliage
Silk Oak (Grevillea Robusta) — it is important to note that the Silk Oak is best suited for USDA zones 9 to 11 and prefers well-drained soils; dissected
Silk Oak (Grevillea Robusta) — Native to the eastern coastal regions of Australia; this tree can reach impressive heights up to 100 feet with a, image 59
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Grevillea Robusta
Photographs by 4 contributors

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