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The Regional Water Authority (RWA) is a joint powers authority that serves and represents the interests of over 20 water providers and associated agencies in the greater Sacramento area.


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Gardens & Landscapes

Beautiful gardens and landscapes make an attractive setting for home, work and play. But in areas such as Sacramento where Mother Nature provides only 17 inches of rain a year and periodic droughts are the norm, traditional lawns and gardens can require lots of water to maintain.


  • Fortunately, there is another way. Gardens can be beautiful and water-wise, if you know where to start. Take advantage of the information and resources below to find out how you can enjoy lovely gardens and landscapes while conserving precious water supplies.

    Check out RWA's "Rules of Thumb for Water-Wise Gardening" before you begin your next gardening project. You'll find lots of helpful tips and resources. Visit your local Water Efficient Landscape Gardens for more ideas.


    Suggested Native Plants
    Native Plant List
    Plants that attract Hummingbirds
    Plants that attract Butterflies




    Irrigation: The right amount at the right place at the right time.
    We really love to make our landscapes green - even when our native plants become dormant during the dry season. To maintain that lush appearance we use 50% to 60% of the Sacramento region's water supply.

    Lawns require about 57 inches of water a year. Some of that comes from rain, the rest we provide as irrigation. A small lawn of 1,000 square feet area uses about 35,000 gallons per year. Unfortunately many of us over irrigate, typically using 75,000 gallons per year per 1000 square feet. We can do better. So here are some hints:
  • Contact your water supplier for a Landscape Irrigation Review. This free service usually includes: inspection of your irrigation system to identify needed repairs, suggestions for water efficiency irrigation systems, instructions on how to use your irrigation controller and an irrigation schedule appropriate for your plants and soils.
  • Follow our Watering Tips for Beautiful Gardens and use the attached "Garden Wish List" to note the plants you'd like to purchase for your garden.
  • Use hydrozones to create a garden that is beautiful, healthy, water efficient and easy to maintain by installing low water-use plants. Group plants with similar water requirements together. Each hydrozone has its own irrigation schedule. For a list of 1,800 plants, see Water Use Classification of Landscape Species for the Central Valley. When purchasing plants look for tags indicating the mature plant needs for water, sun/shade, soils.
  • Allow water to reach the expected root depth. (Eight inches for turf, two to three feet for shrubs & trees)
  • Apply only the amount of water that the soil can absorb at any one time. Stop watering before runoff or puddling occurs. You may need to divide the irrigation time into several shorter periods or cycles.
  • Prevent water from flowing into the gutter since it pollutes streams and wastes energy.
  • Before watering again, allow the soil to dry to a depth of 1/3 of the root zone depth.
  • Make sure your irrigation system works properly. Remember to check your system valves frequently for leaks, use the right nozzles and adjust the direction of the sprinkler heads.
  • Change the watering time on the irrigation controller to match the seasonal water needs. Set your irrigation system to water your lawn every third day -- less often in the spring and autumn. Watering deeply just a few days a week encourages stronger root growth and a better-looking lawn Water your garden between midnight and 10 a.m. Watering during these times minimizes evaporation and, since water systems use energy, puts less strain on the power grid.
  • Stop watering when it rains: Install a rain shut-off device on your automatic sprinklers to eliminate unnecessary watering. They are inexpensive and available at most home improvement stores.

Landscape Classes for Homeowners
Spring and autumn classes teach garden design elements, plant selection, irrigation techniques, application of fertilizers and pesticide, and composting. For the current class see our brochure or contact RWA.

Master Gardeners
The trained volunteers of the UC Master Gardeners program are a great source of information to answer your gardening or plant questions. Their free services include a variety of gardening classes.

Contact them:
  • Sacramento County: Monday-Friday 9:00 a.m. to 12:00 noon or 1:00 to 4:00 p.m. at (916) 875-6913, website
  • Placer County: Monday-Friday 9:00 a.m. to 12:00 noon at (530) 889-7385, website
  • El Dorado County: Monday-Friday 9:00 a.m. to 12:00 noon at (530) 621-5512, website

Visit Water Efficient Gardens


Our region is fortunate to have a growing number of lovely water efficient gardens open to the public. They are an excellent opportunity to get ideas for your own garden and irrigation system. More...