Australian silky-oak
Grevillea robusta
Australian silky-oak is a fast-growing evergreen tree prized for its fern-like foliage and brilliant orange flower clusters that attract nectar-feeding birds. It prefers full sun to light shade and well-drained soil, performing best in frost-free or mild climates. Water regularly when young to establish the root system, then reduce frequency as it matures and becomes more drought tolerant.
Care Level
Moderate
Sun
Partial Shade
Water
Moderate
Growth Rate
Fast
Mature Height
12″ – 48″
Soil
loam
Life Cycle
Perennial
Spacing
300″
Watering Schedule
Every 7-10 Days • Water Deeply And Allow The Top 2 Inches Of Soil To Dry Before Watering Again
Soil pH
5.3 – 7
Temperature
-25° – 95°F
Mature Spread
up to 36″
Root Depth
Medium
Foliage
Fine
Native to
Attracts
Sources
Data: trefle
Image: trefle.io — Taken Nov 15, 2016 by Hugo SANTACREU (cc-by-sa)
No nurseries currently have this species in stock.