Xeriscaping is a low-water landscaping method using native, drought-tolerant plants to create attractive, sustainable yards. Start by assessing yard use, soil, sun, and water flow, then plan layout with layers of trees, shrubs, and groundcover. Remove excess turf, amend soil, plant suitable species, and install efficient irrigation. Avoid common mistakes like poor planning, wrong plant choices, dense planting, and improper watering. Costs vary widely; DIY can reduce expenses but requires skill and effort.