Grevillea Robusta / Silkoak Tree
Genus - Grevillea
Species - Robusta
Common name - Silkoak Tree
Other names - Haikv-keoko, Silver oak, Silky Oak, He-Oak, Okakilika, Spider Flower
Pre-Treatment - Not-required
Hardiness zones - 8 - 12
Height - 50'-100' / 15 - 30(60) m
Spread - 15'-70' / 4 - 21(35) m
Plant type - Tree
Vegetation type - Evergreen
Exposure - Full sun
Growth rate - Fast
Soil PH - Acidic, Neutral
Soil type - Loam, sand, well drained
Water requirements - Average Water, drought tolerant
Landscape uses - Shade Trees, Tropical
Leaf / Flower color - Dark Green, Silver / Yellow, Red, Orange, Light Yellow
Plant growth rate - Fast
