11. Silky Oak (Grevillea robusta)
Source: Graham Titchmarsh/RHS Herbarium
11. Silky Oak (Grevillea robusta) (Image 11 of 11)
Height x Spread: 15m x 8m
Prefers: Full sun; moist but well-drained soil, loam or sand; west or south-facing; sheltered spot.
Grevillea robusta is a fast-growing evergreen tree to 20m or more, but is usually grown as an annual for foliage effect making a bushy shrub to 3m, ideal for providing some shade. Olive-green, fern-like leaves to 30cm in length, paler beneath. Tubular yellow flowers are produced only by mature plants.
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