Description Grevillea 'Bonfire' is a bushy shrub that grows to about 2 m tall and 2 m across. The leaves are dark green and narrowly divided. Clusters of bright red spider-shaped flowers are produced in spring and summer. This plant makes an attractive specimen plant or screening plant. The hybrid originated at Bywong Nursery in New South Wales. It is a hybrid between Grevillea johnsonii and Grevillea wilsonii. It is similar to Grevillea 'Bon Accord', which is another hybrid between Grevillea johnsonii and Grevillea wilsonii, produced by Austraflora Nursery in Victoria.