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 8–10

Silk Oak (Grevillea Robusta) — is an elegant evergreen with fern-like foliage

Silk Oak (Grevillea Robusta) — making it an ideal focal piece for large landscapes requiring minimal maintenance

Silk Oak (Grevillea Robusta) — This fast-growing tree is drought-tolerant

Silk Oak (Grevillea Robusta) — Native to Australia, it thrives in USDA Zones 9-11, preferring full sun and well-drained soil

Silk Oak (Grevillea Robusta) — Its nectar-rich, orange blossoms emerge in spring, attracting pollinators

Silk Oak (Grevillea Robusta) — growing up to 100 feet tall with a spread of 20-30 feet

Silk Oak (Grevillea Robusta) — is an elegant evergreen with fern-like foliage

Culture

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

Shape & size

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

Classification

Family: Proteaceae

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Photos (78)

Silk Oak (Grevillea Robusta) — scientifically known as Grevillea robusta

Silk Oak (Grevillea Robusta) — making it an ideal focal piece for large landscapes requiring minimal maintenance

Silk Oak (Grevillea Robusta) — This fast-growing tree is drought-tolerant

Silk Oak (Grevillea Robusta) — Native to Australia, it thrives in USDA Zones 9-11, preferring full sun and well-drained soil

Silk Oak (Grevillea Robusta) — Its nectar-rich, orange blossoms emerge in spring, attracting pollinators

Silk Oak (Grevillea Robusta) — growing up to 100 feet tall with a spread of 20-30 feet

Silk Oak (Grevillea Robusta) — is an elegant evergreen with fern-like foliage

Silk Oak (Grevillea Robusta) — is a majestic evergreen tree renowned for its ornamental qualities and fast-growing nature

Silk Oak (Grevillea Robusta) — Native to the eastern coastal regions of Australia

Silk Oak (Grevillea Robusta) — this tree can reach impressive heights up to 100 feet with a canopy spread of about 30 feet when mature

Silk Oak (Grevillea Robusta) — The Silk Oak's fern-like foliage presents a delicate texture

Silk Oak (Grevillea Robusta) — bottlebrush-like flowers bloom abundantly

Silk Oak (Grevillea Robusta) — attracting pollinators such as hummingbirds and bees

Silk Oak (Grevillea Robusta) — growing up to 6 inches long

Silk Oak (Grevillea Robusta) — provide a stunning contrast against the deep green

Silk Oak (Grevillea Robusta) — dissected leaves.<br><br>For landscape purposes

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

Silk Oak (Grevillea Robusta) — It requires full sun exposure to thrive and can endure short drought periods once established

Silk Oak (Grevillea Robusta) — as it has an aggressive root system that can damage nearby pavements or structures

Silk Oak (Grevillea Robusta) — the foliage may cause skin irritation on sensitive individuals

Silk Oak (Grevillea Robusta) — and it's recommended to plant it away from areas with heavy pedestrian traffic

Silk Oak (Grevillea Robusta) — Regular pruning will help maintain its shape and prevent excessive spread

Silk Oak (Grevillea Robusta) — gold and yellow flowers in the garden

Silk Oak (Grevillea Robusta) — tree with gold and yellow blooms

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