Answer: For best results, I'd chose plants that like arid conditions, such as Cistus (rock rose), Cordia, Buddleia (butterfly bush), Echium, Lavender, Sage, Aptenia 'Red Apple' (a groundcover), Gaillardia, and Rosa Rugosa. The first year your new plants will need some help becoming established. After that the roots will have penetrated deeply enough to get by with occasional watering during the warmest summer months. So to get them off to a good start, make a little basin around each plant so you can apply water directly to the root mass by flooding the basins once each week. If you'd like to plant hybrid roses, they should get along nicely, as long as you provide adequate water to the plants all through the growing season.
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