Xeriscaping is garden design that uses very little water, without giving up on beauty. The word comes from the Greek word for dry, and the idea was developed for dry regions where water is scarce and expensive — but it works anywhere a gardener wants a lower-maintenance, lower-water garden. A xeriscape is not a bare yard of gravel and cacti. A well-designed one is full of colour, texture and wildlife, and it stays attractive through dry summers when thirsty lawns turn brown.
The key insight of xeriscaping is that water use is decided by design, not just by watering habits. Plants grouped by water need, soil that holds moisture where roots can reach it, mulch that stops evaporation, and hard surfaces that let rain soak in all matter more than any single watering technique. Done well, a xeriscape can cut garden water use dramatically while needing less mowing, less feeding and less fuss. Before you start, check your local extension service for plant lists suited to your local climate and soil.
The seven principles of xeriscaping
Xeriscaping is usually taught as seven principles, and they work as a checklist. First, plan and design: draw your garden, note sun, shade, wind and slopes, and decide where you want lawn, planting and paths. Second, improve the soil: add compost so soil holds moisture, and on sandy ground add organic matter so water does not drain away instantly. Third, choose the right plants for each spot, grouping thirsty plants together near the house and drought-tolerant plants further out. Fourth, use turf only where it earns its place, such as a small play lawn, and replace the rest with beds. Fifth, water efficiently — drip lines and soaker hoses beat sprinklers, which lose water to wind and evaporation. Sixth, mulch everything: a thick layer of gravel or bark stops evaporation and weeds. Seventh, maintain little and often, pruning and weeding before small jobs become big ones. Our garden planning and garden design basics guides help with the first step, and drip irrigation covers the fifth.
Choosing drought-tolerant plants
The best xeriscape plants are those that evolved in dry places, with small, grey, hairy or waxy leaves that lose little water. Lavender, rosemary, sage and thyme are classic choices: they love sun, poor soil and little water, and they smell wonderful. See growing lavender, growing rosemary, growing sage and growing thyme for how to grow each one. Ornamental grasses such as blue fescue and feather grass add movement and need almost no water once established. Succulents such as sedum, sempervivum and agave store water in their leaves and thrive in gravel. Flowering choices include California poppies, coneflowers, yarrow, gaillardia and salvia, all of which flower for months on little water. Avoid planting thirsty plants such as hydrangeas and hostas in a xeriscape — they will struggle and demand constant watering, which defeats the purpose.
Soil, mulch and gravel
Soil preparation matters more in a dry garden than anywhere else, because the soil is the water store. Dig in compost before planting so the soil holds moisture around the roots, and avoid over-digging sandy soil, which only makes it drain faster. Then mulch thickly: a layer of gravel, crushed stone or bark about 5–8 centimetres deep stops evaporation, keeps roots cool and suppresses weeds. Gravel mulch suits Mediterranean and desert-style planting and never rots, but it heats up in full sun, so keep it away from the crowns of young plants. Bark mulch suits shrubs and holds moisture well, but it needs topping up each year. Do not use plastic sheeting under gravel — it stops water soaking in and starves the soil — use a breathable weed membrane if you must, or simply weed by hand. Our mulch types guide compares the options, and the mulch calculator works out how much you need.
Watering a xeriscape
A xeriscape still needs water, especially in its first year while plants establish. Water deeply and rarely, so roots grow down to where the soil stays moist, rather than little and often, which keeps roots shallow and dependent. Drip irrigation is ideal: it delivers water slowly to the root zone with almost no waste, and it can be put on a timer. Water in the early morning, when evaporation is lowest, and never water in the heat of the day. Once established, many xeriscape plants need watering only in long dry spells. Group plants by water need — called hydrozoning — so you are not watering a lavender as often as a rose. Collect rainwater in a butt where you can; our rain barrels guide explains how. And check local watering rules: in dry regions, hosepipe restrictions may apply, and a xeriscape is the garden that keeps looking good when they do.
Designing for year-round interest
A common worry is that a dry garden looks bare in winter, but good design avoids that. Use evergreen structure — rosemary, lavender, olive, yucca and ornamental grasses — so the garden has shape all year. Add spring bulbs such as alliums and tulips, which flower before the dry season and then rest. Add summer colour with salvias, gaillardia and California poppies, and autumn interest with sedums and grasses that turn gold. Use stone, gravel paths, a dry-stone wall or a terracotta pot as permanent features that look good with no water at all. Keep the lawn small or replace it with a gravel seating area planted with creeping thyme between the stones. The result is a garden that looks designed rather than neglected, and that needs less work in every season. For a related approach in a hotter climate, see our desert gardening guide.
Maintaining a xeriscape
Maintenance is light but not zero. Weed little and often, because weeds in gravel are easy to pull when small and hard to remove once rooted. Prune lavender and rosemary after flowering to keep them compact, and cut back ornamental grasses in late winter before new growth starts. Top up bark mulch each spring, and rake gravel back into place where it has thinned. Check drip lines for blockages at the start of each season, and flush them through before summer. Feed sparingly: most drought-tolerant plants prefer poor soil, and too much fertiliser produces soft, thirsty growth. Compost once a year is enough for most. If a plant keeps dying in the same spot, the spot is probably wrong for it — move it, or choose a tougher plant, rather than watering more. That is the xeriscape mindset: fit the plant to the place, not the place to the plant.
Common mistakes to avoid
The biggest mistake is planting drought-tolerant plants in rich, wet soil and then watering them like bedding plants — most will rot or grow soft and leggy. The second is using a thin scatter of gravel instead of a proper mulch layer, which does nothing to stop evaporation or weeds. The third is mixing thirsty and drought-tolerant plants in the same bed, so one group is always either drowned or thirsty. The fourth is laying plastic sheeting under gravel, which stops rain soaking in and kills soil life. The fifth is planting a xeriscape and then abandoning it in its first summer: new plants need regular water until their roots establish, usually for the first year. Finally, do not remove every blade of grass and replace it with gravel without thinking about shade and heat — a garden of bare stone can become very hot in summer, so keep some planting and some shade, and check your local extension service for advice on plants that cope with reflected heat in your area.
Frequently asked questions
Is xeriscaping only for desert climates?
No. The principles work anywhere water is limited, expensive or simply not worth wasting, including ordinary temperate gardens. In a wetter climate, choose plants that tolerate both drought and occasional wet, such as sedum, yarrow and ornamental grasses, and make sure the soil drains well so winter wet does not rot them.
How much water does a xeriscape save?
Savings vary with climate, design and what the garden replaced, but a well-designed xeriscape typically uses far less water than a lawn-and-bedding garden of the same size, mainly because it replaces thirsty turf and annuals with plants that need little or no summer watering once established. The biggest saving comes from removing large lawns.
Can I have a lawn in a xeriscape?
Yes, but keep it small and purposeful — a patch for children or pets, for example — and choose a drought-tolerant grass type suited to your climate. Water it deeply and rarely, mow it a little higher so it shades its own roots, and accept that it may go brown in a dry spell and green up again when rain returns.
Do xeriscape plants need any watering at all?
Yes in the first year, while roots establish, and in long dry spells after that. Most need far less than ordinary garden plants, and many need none at all once established in a suitable climate. Water deeply and rarely, in the early morning, and use drip irrigation rather than a sprinkler.
What mulch is best for a xeriscape?
Gravel or crushed stone suits Mediterranean and desert-style planting and lasts for years without rotting. Bark mulch suits shrubs and holds moisture well but needs topping up. Use a layer 5–8 centimetres deep, keep it off plant stems, and avoid plastic sheeting underneath. Our mulch types guide compares the options in detail.