Grevillea robusta

Grevillea robusta is green and fast-growing and has a central trunk with strong apical dominance. It grows to a height of 12–14 meters. The trunk bark is dark gray and very grooved. The leaves are fern-like and have 11 to 31 lobes. The many leaves fall shortly before the tree flowers. The flowers are arranged in toothbrush-like clusters, 12 to 15 centimeters long. They are usually yellowish-brown or sometimes reddish. The tree flowers from September to November. The flowers ooze oil/nectar, which can be a nuisance because it is sticky and tends to dirty sidewalks and vehicles. The flowers resemble a harmonica.

The tree prefers warm areas and requires relatively minimal watering once it is established. In its adulthood, it is resistant to short frosts.

The tree has long been in Israel – it was introducing during the British Mandate. It used to be very popular in the country, but due to the possibility of its large branches breaking, its usage has declined. Ironically, its Latin name, robusta, means “strong like oak” or “robust.”