Grevillea robusta, also known as Silky Oak, is an Australian native tree typically growing between 10 and 20 feet in height. A popular choice for gardens and landscapes, Grevillea robusta is known for its ornamental foliage and yellow-to-orange flowers that attract butterflies and hummingbirds. Despite being hardy and drought-tolerant, this small tree should be watered on a regular basis to ensure healthy growth. Grevillea robusta is suitable for USDA Zones 8-10.
Where planting in colder climates, Grevillea robusta should be located in a shaded area where the sun will not be too intense. When growing in a pot, the plant needs to be watered frequently during the summer and allowed to dry out slightly in winter.
One thing to keep in mind when handling Grevillea robusta is the plant may cause skin irritation or allergic reaction. Wear gloves and long sleeves when pruning or handling the foliage.
Overall, Grevillea robusta is a great addition to any garden that adds beauty and wildlife attractions. With its fern-like foliage, evergreen look and yellow-orange flowers, this small tree is sure to brighten up any space.