Answer: If you're looking for a perennial groundcover, try crownvetch. It is commonly used to stabilize grades on roadsides because it spreads quickly. Since it's a legume, it also fixes nitrogen from the air into the soil, enriching it for any future plants you might wish to grow there. It needs watering to get started, but once established, is quite drought tolerant. And it has beautiful pink blooms! You can get seed from Peaceful Valley Farm Supply, PO Box 2209, Grass Valley CA 95945; ph# 888/784-1722 toll-free).
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