Grevillea shiressii is a very rare species from the Central Coast of NSW where it grows along the banks of a tributary of the Hawkesbury River.
This attractive shrub reached a height two metres tall with a similar width, in five years, in our cold climate garden. The leaves are up to 16 centimetres long with wavy margins. The foliage is similar in appearance to the leaves of Grevillea ‘Orange Marmalade’ (see our G. ‘Orange Marmalade’ article).
The flowers are held in axillary clusters often on older wood. The original description describes the flower colour as pale violet to greenish and tinged with pale purple-brown. This colour is unusual in grevillea flowers. Honeyeaters are attracted to the blooms. Both foliage and flowers are attractive features.
Our plant has proved to be very hardy in our cold climate garden. Frost does not bother the plant and once established has proved to be very drought tolerant.
Grevillea shiressii could be grown as a component of hedges and screens.
We have found this species propagates readily from cuttings.
The original description was published in Volume 50 of the Proceedings of the Linnean Society of NSW in 1925.
The species was named after David Shiress who made the original collection with his friend the botanist William Blakely in the early 1920’s.