A green lawn in Las Vegas is an expensive habit. The Southern Nevada Water Authority has spent years paying people to take turf out, and a July water bill explains why. A landscape that fits this valley uses less water, still looks finished from the street, and does not die the first week of June.

Here is how that plays out from Henderson and Green Valley to Centennial Hills, The Lakes, and North Las Vegas.

Design for the sun you actually have

West and south walls are the hot ones. A young tree planted six inches off the stucco will scorch, and so will the wall. Give shade trees room. A desert museum palo verde, a shoestring acacia, or a mesquite can cool a patio, but only if the canopy is allowed to spread and the roots are not trapped in a two-foot hole punched into caliche.

Morning sun on the east side is kinder. That is where autumn sage, lantana, and red yucca actually bloom instead of stalling. North sides stay shadier and can hold plants that burn in a Summerlin west yard.

Rock mulch is the valley default, and it works when it is not a thin sprinkle over bare dirt. Two to three inches of decomposed granite or a larger decorative rock keeps the soil cooler and slows evaporation. Against the house, keep a gap so gravel is not piled on the weep screed.

Plants that earn their water

Stick to plants that already live in this kind of heat:

• Palo verde and desert museum palo verde for light shade without a dense, messy canopy
• Mesquite where you have room and an HOA that allows it
• Red yucca, agave, and desert spoon for structure that stays put
• Lantana, autumn sage, and chuparosa for color that pollinators use
• A small lawn only where someone actually walks or plays, on its own irrigation valve

A ribbon of grass along a wall that nobody uses is just a water feature with extra steps.

Drip is the system, spray is the exception

Spray heads on rock make sense for a lawn and almost nowhere else. Shrubs and trees want drip, on a separate schedule from grass, with emitters sized to the plant. A new tree does not want the same gallons per hour as a mature one, and a valve that runs both will overwater one of them.

Check the clock in April, before the heat, and again when nights finally cool off. A schedule left on July minutes through December is how a desert yard still wastes water. In North Las Vegas and older parts of Henderson, many systems were built for turf that is already gone. Those zones should be capped or rebuilt, not left spraying gravel.

Neighborhood notes

Green Valley and older Henderson yards often still have spray heads, fescue, and a pine that is too big for the parkway strip. Converting the parkway and the side yards to drip and rock is the change that saves the most water. Leave a small lawn in the back if the family uses it.

The Lakes and communities with water features already spent the landscape budget on the lake edge. Keep new plants inside the community rules, and do not let irrigation run into the lake.

Centennial Hills, Mountains Edge, and Southern Highlands were built closer to desert codes. The yards look sparse on day one and fill in if the trees were planted in real holes, not in the nursery can. If a tree has not grown in two summers, the hole is probably sitting on caliche.

North Las Vegas lots are often flatter and windier. A row of shrubs on the west side does more for comfort than another boulder. Tie young trees until the roots lock in. Spring wind will lay a new palo verde over.

Hardscape and plants are one project

Pavers, seat walls, and planting beds fail when they are drawn by two people who never talked. Leave pockets for trees before the patio is locked in. Run irrigation sleeves under walks. Do not set a raised planter so the drain dumps onto the house. If you are starting from a dirt yard or a turf removal, draw the stone and the plants on the same plan, then build the drainage first.

A Las Vegas landscape that lasts is usually quieter than the brochure: fewer species, more rock, trees in the right exposure, and a drip system somebody actually adjusts. That yard still looks like the valley, and it is still alive in August.