Grevillea robustaSouthern Silky Oak Tree

The Grevillea robusta, commonly known as the Southern Silky Oak, is a fast-growing, evergreen tree admired for its fern-like foliage and striking golden-orange flowers. Native to Australia, this hardy tree thrives in a variety of conditions and is a popular choice for shade, windbreaks, and reforestation projects. Its elegant form and vibrant blooms make it a standout feature in large gardens and landscapes.

Specifications

• Height15 to 30 metres
• Width6 to 10 metres
• Native toAustralia (eastern regions)
• FoliageFern-like, dark green leaves with silvery undersides; evergreen
• Growth rateFast

Conditions

• SoilPrefers well-drained soils; tolerates sandy, loamy, and clay soils
• LightFull sun
• WaterLow to moderate; drought-tolerant once established
• ClimateThrives in temperate, subtropical, and tropical regions

Additional Features

• FlowersVibrant golden-orange flowers in spring, attracting birds and pollinators
• FormTall, upright tree with a rounded canopy and distinctive foliage
• UsesIdeal for shade, windbreaks, reforestation, or as a feature tree in large gardens
• SpacingPlant 8 to 10 metres apart for individual specimens or 5 to 7 metres for windbreaks
• Low MaintenanceRequires minimal pruning; shape to control size if needed
• Pest ResistanceGenerally pest-free; monitor for occasional scale or psyllids
• Drought ToleranceHigh; suitable for low-water landscapes
• Frost ToleranceHardy to light frost
• Wildlife AttractionFlowers attract birds, bees, and butterflies
• Timber UseKnown for its durable, golden-hued wood, used in cabinetry and furniture
• Seasonal AppealEvergreen foliage with vibrant seasonal blooms
• VersatilityComplements native, contemporary, and reforestation garden styles

The Southern Silky Oak Tree is a majestic and functional addition to landscapes, offering shade, wildlife support, and vibrant seasonal colour. Its adaptability and rapid growth make it a valuable choice for both ornamental and ecological projects.