Silky oaks are older than dinosaurs and literally drip nectar – but watch out for the cyanide
- Written by Gregory Moore, Doctor of Botany, University of Melbourne
ShutterstockAs we come to the end of spring, look up from the footpath or at the park, and you may spot the fiery flowers of the silky oak, Grevillea robusta.
You may already be familiar with grevilleas – perhaps you have low- growing ground cover and shrub species in your garden.
Some people love the brilliant red, yellow, orange or white...





