Answer: Grevillea is native to Australia and hardy to 20 degrees F. It grows rapidly, forming a dense mound 5' tall by 6' wide. The needle-like leaves are borne on arching stems. For best growth, plant in full sunshine, in well draining soil. It has low water needs once established. Fertilize in spring and fall with NPK plus iron and sulfur to avoid chlorosis.
If your winter temperatures remain above 20F, the plants should be fine. Once the roots are established new growth will be produced if the tops are damaged by extremely cold weather.
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