Amend the soil â€“ No matter what you intend to do with your clay heavy garden, you should always work towards amending the soils by adding organic matter. When coming up with xeriscape landscape design ideas, this is even more important as this will make it easier to manage your drought tolerant landscape as the years progress. Xeriscape Landscape Design Ideas For Clay Soil - Gardening Please note: You are currently browsing img landscaping with lavender 7 garden design ideas that is 736x2000px in size. This image is listed in best garden ideas category. Xeriscape Landscape Design Ideas For Clay Soil Gardening, 736x2000 in 323.18 KB.