Grevillea (Grevillea robusta), also known as silk oak, is a tree from the Proteaceae family. It originated in Australia, but is now growing well in North America. This is a tall tree and is referred to as being a skyline tree with lots of vertical accent. Grevillea is very fast growing and can live 50-65 years.
As grevilleas are sensitive to excessive levels of phosphorus, you need to use a specialised native fertiliser,
