Grevillea olivacea, commonly known as Olive Grevillea, is an evergreen shrub endemic to the sandy coastal plains and limestone outcrops of the southwest of Western Australia. It typically grows up to 4 meters in height and can spread to 2-3 meters wide. The Olive Grevillea has a dense, rounded to spreading form with olive-green, needle-like leaves that give it a distinctive texture. It produces showy inflorescences of red, orange, or yellow flowers from June to October (early winter to mid-spring) in its native range, which attract nectar-feeding birds and insects.

Olive Grevillea is valued for its drought tolerance and vibrant flowers, making it a popular choice for water-wise gardens, native plant landscapes, and as a screening or hedge plant. It is also used in coastal reclamation projects due to its adaptability to poor soils and salt spray. In cultivation, it thrives in full sun to part shade and prefers well-drained soils, tolerating both medium and fast drainage. While it requires low amounts of water once established, regular pruning is beneficial to maintain its shape and promote denser growth. Olive Grevillea is generally pest-resistant but can be susceptible to root rot in poorly drained soils.CC BY-SA 4.0