How to Propagate silky oak?
Propagate by seed, semi-hardwood cuttings or graft

silky oak · Grevillea robusta
Also known as: silk oak; silky-bark oak
Grow outdoors in acid to neutral well-drained soil in a frost-free area or as part of a summer bedding scheme. Grow under glass in lime-free compost with added grit in full light. May need restrictive pruning under glass
Propagate by seed, semi-hardwood cuttings or graft