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Take time to learn about your possibleWaterSmart Living irrigation choices. Photo: San Diego County Water Authority

Installing WaterSmart Living Irrigation

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Successfully installing WaterSmart Living irrigation starts long before you get out your tools. You need to complete an assessment of your landscape plan’s specific water needs, draw a complete plan showing the layout, then select your irrigation and purchase your irrigation equipment. If your soil needs amendments (and it almost certainly does), you must get this done first. With all of this important prep work complete, you can start to implement the design.

Five key steps to success

Be sure your irrigation plan considers hills and slopes to prevent waste and erosion. Photo: Pixabay

Step 1: Read the instructions from the manufacturer and familiarize yourself with all the parts of your new irrigation system. Often the manufacturer will provide YouTube video demonstrations which can be extremely helpful.

Step 2: Starting from the main connection to the water line, dig trenches for all the pipes according to your irrigation plan. Ideally, the main connection to the water line will be downstream of the water meter and upstream of the connection to the house.

If you tie into a rear yard hose bib, be aware that the water pressure will be lower because the water for your house is regulated by a separate pressure regulator.

Step 3: Lay an extra pipe sleeve or two under any new hardscape elements. This allows you to add pipes or wires in the future. Be sure to cover the ends of the pipe with duct tape before covering and mark the location on your landscape plan.

Step 4: If you are using drip irrigation, you may want to hold off installing your drip emitters until after planting is complete. With your new plants in the ground, you can place the emitters precisely where the water best irrigates your new plants. Be sure to place them at least six inches away from the plant’s stem to prevent rot.

Step 5: Consult your local irrigation supply store or the major irrigation manufacturers if you need more detailed installation guides or help with troubleshooting. Manufacturers offer toll-free customer service phone help, online chats, and email.

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WaterSmart Living-Logo-San Diego County Water Authority

(Editor’s Note: The San Diego County Water Authority and its 24 member agencies offer programs, resources, and incentives to improve water-use efficiency for residential, commercial, and agricultural users. WaterSmart choices are a way of life in the region. Stay WaterSmart San Diego! For more water-use efficiency resources, go to WaterSmart.SD.org.)

Removing your turf is water smart, but there is a right approach to take. Photo: MK Digital Products remove backyard turf turf removal

Best Options For Turf Removal

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Once you’ve finalized your landscaping plans, you’ll have some demolition work ahead of you, including the existing turf you plan to remove or replace. Removing turf presents choices about the best way to accomplish this task. Learn more about turf removal options and understand the steps before you begin.

Start here with this video demonstrating your turf removal options

Reclaiming an area of unwanted turf requires diligence. No matter what method of turf removal is used, plan on routine maintenance, including weeding or herbicide application, as often as every two weeks for the first three months after your take your turf out. Some tenacious warm-season grasses might give you a battle for even longer.

Options for Turf Removal

Natural turf removal. A natural way to remove turf and preserve the soil’s ecology is to strip the turf and water the area for the next two weeks to encourage grass to re-sprout and hand pull all new growth.

Sheet mulching. Rather than removing turf and taking it to the landfill, you can compost it in place. First, remove several inches of turf and soil from the edges near your hardscape. Wet the turf area and cover it with several layers of newspaper. Water again and cover with cardboard. Water again and cover with three inches of shredded mulch.

If you can invest the time, allow several months for the soil microbes to decompose the turf and turn it into friable soil for plants.

Solarization. Another alternative is solarization. This works best in the spring or summer. Turf areas are covered with rolls of plastic. Sun exposure heats the soil and kills the turf and weed seeds. The cover must be airtight with no holes and left in place for six to eight weeks. However, this method will also kill beneficial soil microbes. Using this method, you must follow up and apply compost or other soil amendments to restore the soil’s healthy biology.

Turf removal with herbicide. If you choose to use an herbicide, consult with your local landscape supply store and read the manufacturers’ label for best use practices and safety considerations. Since Bermuda grass and some other grasses are dormant in the winter, they must be treated when actively growing in the remainder of the year (May to October).

Grading. When the turf is removed, you need to grade your property. Set the soil level to direct water away from the house. To help slow down water runoff from your garden, try creating small depressions away from structures, walls, or paving where water is allowed to pool and slowly percolate into the soil. The more you slow the water down or hold it on site, the more you improve water quality in your area and downstream at local beaches.

Reduce runoff. Runoff carries with it soil particles and pollutants. Reduce runoff by using mulch.

Prep For Success

Remove your old turf in a way that preserves valuable soil microbes. Photo: Anna Shvets / Pexels

Remove your old turf in a way that preserves valuable soil microbes. Photo: Anna Shvets / Pexels

Now that you have removed unwanted turf and other plants, it is time to condition your soil.

Soil amendments should be selected based on your soil analysis recommendations. Till them into the top layer of soil. Compost (15-30% by volume), gypsum, and fertilizer are typical amendments in arid climates like San Diego County.

The goal is to achieve healthy soil containing microbes which feed plants, improve drainage, and increase the natural water holding capacity of the soil.

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WaterSmart Living-Logo-San Diego County Water Authority

(Editor’s Note: The San Diego County Water Authority and its 24 member agencies offer programs, resources, and incentives to improve water-use efficiency for residential, commercial, and agricultural users. WaterSmart choices are a way of life in the region. Stay WaterSmart San Diego! For more water-use efficiency resources, go to WaterSmart.SD.org.)

Inspect your sprinkler heads regularly to make sure they are not obstructed or watering onto pavement or other hardscapes. Photo: Irrigation Association

Irrigate Your WaterSmart Landscape Like a Pro

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Irrigation is an essential part of any good landscape design. It ensures plants and trees get the water they need to thrive without wasting a drop. Once you know how much water your landscape plants require, it’s time to take a closer look at your irrigation system.

Whether you are working with a professional designer or are doing the project yourself, the following checklist will help you keep track of the main design decisions involved in irrigation design.

Start with this informational video about WaterSmart Living Landscape irrigation

Evaluate your existing irrigation system and determine if it can be maintained in its current condition or if you need to upgrade it. Some irrigation systems can be upgraded by changing nozzles, converting to drip emitters, or adding a smart controller, while others may need to be completely redesigned.

Irrigation options fall into categories

High-efficiency irrigation is the most efficient method to deliver water to plants is low-flow irrigation. It delivers water from the valve through a filter and then through a network of lateral pipes and sometimes flexible tubing, to the individual emission devices such as drip emitters, in-line drip emitters, or bubblers. Pressure compensating devices are always the most efficient option.

Low flow irrigation is a good choice for trees and shrub areas and should be used in any landscaped areas next to hardscape and in areas less than eight feet wide to prevent runoff from overspray. When using drip emitters, reduce maintenance and ensure long-term durability by selecting good quality tubing and designing for at least two emitters per shrub.

Moderate efficiency irrigation is the next most efficient types of irrigation include rotating or low precipitation (typically for spaces eight to 30 feet in size). These nozzles are a better choice than conventional spray heads for watering turf because they have a lower application rate – they water slowly. Your watering times will increase, but these sprinklers do not produce mist, and they apply water at a rate turf can absorb it, reducing runoff.

Low-efficiency irrigation. The least efficient types of automatic irrigation include conventional spray irrigation and impact rotors. These types of high precipitation irrigation distribution systems generally apply water faster than the soil can absorb. Installing a new system with low-efficiency irrigation is not recommended. If you have an existing conventional spray system, you can easily retrofit it with new low precipitation nozzles.

Get smart with a smart controller

Landscape Makeover Contest-Otay Water District-drought

This new landscape includes a drip-irrigation system, rotating nozzles, and a smart irrigation controller to schedule efficient water use. Photo: Otay Water District

Upgrade to a smart controller, an automatic controller (also called a timer or clock) is either weather-based or has historical weather data included as a reference. Some systems allow for adding a weather sensor or moisture detection system that automatically adjusts your watering schedule in response to current weather or soil moisture level.

Smart controllers can turn off your sprinklers when it rains and increase the frequency and/or duration of watering in hotter weather. Locate the controller in a place that is easy for you to access, such as the garage.

Verify your new landscape water use

WaterSmart landscape irrigation aims to apply water as efficiently as possible. This means using low flow drip or bubblers whenever possible and in areas with overhead sprays, providing the correct pressure and equipment layout to ensure even coverage to maximize efficiency.

Once you have determined what type of irrigation you would like to use, divide your yard into zones and note what kind of irrigation you plan to use in each zone. Contact some of the major irrigation manufacturers to obtain an irrigation design guide to help you with the specifics of your irrigation layout. Some irrigation manufacturers even offer free irrigation design services.

It is important to double-check to make sure your design meets the target landscape water use after installation. You may need to adjust the design to meet your target to maximize water savings.

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WaterSmart Living-Logo-San Diego County Water Authority

(Editor’s Note: The San Diego County Water Authority and its 24 member agencies offer programs, resources, and incentives to improve water-use efficiency for residential, commercial, and agricultural users. WaterSmart choices are a way of life in the region. Stay WaterSmart San Diego! For more water-use efficiency resources, go to WaterSmart.SD.org.)

Matilija poppies, or Romneya coulteri, have the largest flower of any poppy. It's native to dry, sunny areas from California to Baja and are good choiices for successful sustanable landscaping. Photo: Kimberly Rotter / Pixabay

How to Pick Your Plants for a Successful WaterSmart Landscape

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Once your WaterSmart Living Landscape design starts coming together, pick your plants for each water-use category to ensure you meet your WaterSmart water conservation goals. Focus on local native plants or plants from similar climate regions.

Let this video help you choose the right plants for our Mediterranean climate

 Once you’ve chosen your plant types, there are additional important considerations.

Design for mature plant size: Allow enough space for the plants you select to grow to their full size to avoid overcrowding or the need for excessive pruning.

Growing conditions: Select plants suited for your microclimate, soil type, and drainage to achieve optimum plant growth.

Even the strictest drought restrictions allow for watering trees on residential and commercial properties. Photo: Otay Water District tree care tips

Even the strictest drought restrictions allow for watering trees on residential and commercial properties. Photo: Otay Water District

Tree placement: Typically, a planting design will include a tree or two for shade. Placing a deciduous tree on the south or west side of your home will shade your house during the summer to keep it cool and allow more light and sun exposure in the winter. Keep trees at least 10′ from foundations. In fire hazard areas, trees should be placed, so the mature canopy is at least 10 feet away from any structures.

Shrub placement: Shrub and groundcover planting is typically designed with various heights. Medium size (three to four foot) shrubs are usually placed closer to the house to create a “foundation” or backdrop. Smaller shrubs are then placed in front of the foundation planting and low groundcovers in the area closest to the sidewalk or street.

Accent shrubs can provide a unique texture, color, or flowers. Place them so they provide interest and focus views on locations in the landscape. Highlight your entrance walk with special accent plants. This places a higher emphasis on your entry, which is where you want visitors to be directed.

Be bold and have fun. Don’t be afraid to express your individual tastes.

Using water features and higher water use plants

Determine water use before choosing plants for your new sustainable landscaping. Photo: San Diego County Water Authority

Water has been a precious resource throughout history in arid regions of the world. This perspective has been integrated into Mediterranean landscapes by using water only in the most important areas.

If you have some high water use plants you particularly want to include, they can be used. Strive to include no more than 10% high water use plants or water features in your landscape, so choose carefully.

Hyrdozones and water-efficiency

If you choose to include plants not classified as very low or low water use, be sure to group these moderate or high water use plants together. Grouping plants of similar water use together, known as planting in hydrozones, makes it easier to irrigate efficiently by letting you concentrate additional water only where it is needed.

Higher water use plants should be on a separate irrigation valve so you can water them differently than the rest of the garden.

Mediterranean landscapes also historically used water features for a pleasant and calming sound. The water area of the fountain will lose water at about the same rate as cool-season turf grass or another high-water use plant. By minimizing the square footage of open water, a water feature can fit well into the WaterSmart landscape.

Minimizing turf use

Limit the amount of turf in your design as much as possible. If you choose to incorporate turf, consider a warm-season turf that uses less water than traditional cool-season turf. Warm-season turf such as Hybrid Bermuda or UC Verde Buffalo Grass thrives in the hot months of the year and naturally go dormant in winter. Another less thirsty grass to consider is Carex praegracilis or California Field Sedge.

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WaterSmart Living-Logo-San Diego County Water Authority

(Editor’s Note: The San Diego County Water Authority and its 24 member agencies offer programs, resources, and incentives to improve water-use efficiency for residential, commercial, and agricultural users. WaterSmart choices are a way of life in the region. Stay WaterSmart San Diego! For more water-use efficiency resources, go to WaterSmart.SD.org.)

Native plants-New landscaping-room to grow-plants-watersmart living landscape

Designing Your WaterSmart Living Landscape to Fit Your Life

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When designing your WaterSmart Living landscape, you want your new outdoor space to fit your house, your neighborhood, and your lifestyle. Finding that fit begins by asking a few basic questions.

First, how do you want to use your space? It’s possible to significantly improve your home’s water efficiency and meet your lifestyle needs at the same time. For example, you may want to use less water yet maintain some turf for your children and pets. Focusing most of your landscape plan on low and moderate water use while leaving a small area of turf with high-efficiency irrigation lets you achieve a WaterSmart landscape.

Hausmanns-Vallecitos Water District-landscape makeover-waterwise-WaterSmart

The Hausmanns award-winning landscape makeover also produces succulents sold to benefit a good cause. Photo: Vallecitos Water District

If your goal is an outdoor space for entertaining, use mostly low water plants, a water feature, and a moderate efficiency irrigation system for a different type of WaterSmart Living landscape.

You can reduce water use, minimize maintenance and create a landscape that will be the envy of your neighbors with a combination of very low and low water use plants and a highly efficient irrigation system.

Consider alternatives to traditional turf grass such as low-water-use groundcover and mulch, or permeable hardscape like gravel or decomposed granite paving wherever possible. But if an area of turf is important to your family – for example, a play area for your kids and pets – keep it but use a more drought-tolerant variety of grass in the warm season turf category.

Video: Learn more about how turf can be part of a WaterSmart design

Your Overall Planting Design

Before you start selecting plants, envision your overall planting design. Determine your landscape style and think in terms of plant size and characteristics before moving into actual plant selection.

Take some time to consider the style of landscape you find appealing. Think about how it fits your home’s architecture, your neighborhood, and your lifestyle. You might find a heavy tropical look appealing. But it requires careful low-water-use plant selection for the arid San Diego region.

San Diego shares its climate with many areas of the world, and there are many plant palettes to choose from.

Consider Your Views and Access  

Plants can be used to screen views. Would blank walls or fences look better with a nice-looking shrub in front of them? You can frame the view out a window, but you probably don’t want a large shrub blocking the view.

Plants can also create access points. Is access from the side of the house needed to take garbage cans to the curb? If so, make sure you accommodate a safe pathway in your design.

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WaterSmart Living-Logo-San Diego County Water Authority

(Editor’s Note: The San Diego County Water Authority and its 24 member agencies offer programs, resources, and incentives to improve water-use efficiency for residential, commercial, and agricultural users. WaterSmart choices are a way of life in the region. Stay WaterSmart San Diego! For more water-use efficiency resources, go to WaterSmart.SD.org.)

While compost and mulch may seem interchangeable, they have distinctly different uses in your sustainable landscaping. Photo: Water Authority Compost vs. Mulch

Using Compost and Mulch to Build Healthy Soil

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When undertaking a WaterSmart landscape renovation, strive to continuously feed as much organic matter as possible to the landscape soil to keep it healthy. Start first with compost and mulch to jump-start the process. Eventually, your plants will feed themselves with their own leaf litter.

Organic matter feeds microbes living in the soil that make soil fluffy. It’s similar to bread rising because of yeast.

Learn more about healthy soil in this instructional video

Compost and mulch – what’s the difference?

Compost is a soil amendment. It looks like soil and it’s hard to tell what it once was. That is because it is food scraps, landscape debris and/or manure from livestock, or biosolids (human manure) and other organic matter that already has been partially consumed and mostly decomposed by micro-organisms. Good compost brings oxygen, water, and life in one package.

Compost can be store-bought or made at home. The compost-making process, or composting, involves creating optimal conditions for the microbes to do their transformative work. When compost looks like soil, it can be worked directly into the soil. The more coarse or visible the bits of the compost are, the more likely it is to be used as mulch on top of the soil rather than as an incorporated amendment.

Compost works in several ways. First, the compost itself contains particles improving soil structure. Next, as compost decomposes in soil it encourages the formation of soil macroaggregates. The resulting macroaggregates are composed of existing soil particles and decomposed organic matter, which combine to create a more stable and better functioning soil structure.

Mulch builds soil structure over time and holds in moisture. Photo: Monsterkoi/Pixabay compost

Mulch builds soil structure over time and holds in moisture. Photo: Monsterkoi/Pixabay

Mulch is a soil topping. Mulch may be organic or inorganic material covering soil. It’s made of larger particles and looks like recycled debris. Mulch can be made from organic matter such as grass clippings, leaf litter, and shredded wood trimmings, or inorganic materials such as gravel or decomposed granite.

The microbes in healthy, biologically diverse mulch bind the organic matter together, forming a thick blanket. This cover protects soil and plant roots from temperature change, keeps moisture in by slowing evaporation from the surface of the soil, and keeps weeds from sprouting by reducing sunlight penetration to the soil surface.

Mulch always stays on top of the soil. Unlike compost, it is never worked in. Recycled organic debris is the most effective type of mulch because it builds soil structure over time and provides a durable, protective surface barrier. The smaller the debris and the more mixed leaves with wood chips, the faster it decomposes. When building soil, small and mixed is best.

Composted material, especially coarse composts, also can be used as mulch. Artificial and inorganic mulches (decomposed granite, gravel, rubber chips, and other rubble) are primarily decorative since they do not contribute to soil life or plant health. They may be used in limited applications such as pathways.

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WaterSmart Living-Logo-San Diego County Water Authority

(Editor’s Note: The San Diego County Water Authority and its 24 member agencies offer programs, resources, and incentives to improve water-use efficiency for residential, commercial, and agricultural users. WaterSmart choices are a way of life in the region. Stay WaterSmart San Diego! For more water-use efficiency resources, go to WaterSmart.SD.org.)

High quality landscape soil will support your WaterSmart landscape design. Photo: Lisa Fotios/Pexels healthy soil

Building Healthy Soil: Give It Some Space

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Healthy soil consists of elements we don’t typically think of as soil at all. In fact, one of the most critical aspects of soil is the space between the particles.

Soil space results from a process called aggregation. Solid matter will aggregate under the right conditions, forming space between the masses. This allows air and water to fill this area. Rain or irrigation water percolates through the soil, and aggregate spaces hold it like a storage tank. You can store more water and irrigate less frequently when you have more space.

Common Soil Problems Can Be Corrected

Set yourself up for landscaping success by building the best foundation in your soil structure. Photo: walkersalmanac/Pixabay healthy soil

Set yourself up for landscaping success by building the best foundation in your soil structure. Photo: Walkers Almanac/Pixabay

Check your soil aggregation by looking at the soil you dig out during a drainage test. Does it have nice clumps, or is it condensed and compacted?

Compaction is a common problem, especially in areas where grading has been done, foot traffic is heavy, or years of chemical use have killed the soil microbes. Compaction occurs when soil particles are pressed together, reducing pore space. Reduced pore space keeps air away from plant roots and stops water from infiltrating and draining.

Here’s how to tell if your soil is compacted. Take a turning fork and plunge it slowly but firmly into the ground. If your garden has a foot or more of penetrable soil, your compaction is minimal. New roots will grow easily, and water will effectively penetrate and drain. Anything less, and you probably have some soil compaction.

Using a turning fork, an aerator, or a tilling machine, you can create gaps in the soil to loosen compaction. Because it breaks up the fungal connections, it should only be done once to prepare your planting beds.

Follow all of these activities with a layer of compost to feed the soil food web to help build the aggregate spaces. Mulch can also feed healthy soil and help loosen compaction over time.

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WaterSmart Living-Logo-San Diego County Water Authority

(Editor’s Note: The San Diego County Water Authority and its 24 member agencies offer programs, resources, and incentives to improve water-use efficiency for residential, commercial, and agricultural users. WaterSmart choices are a way of life in the region. Stay WaterSmart San Diego! For more water-use efficiency resources, go to WaterSmart.SD.org.)

Soil-WaterSmartSD-Drought, Landscape makeover

Get to Know Your Soil Conditions

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Every individual landscape sits in one of San Diego County’s 16 watersheds. The watershed approach to landscaping considers every garden its own mini-watershed, holding onto or cleaning the water falling on it and nurturing a diverse habitat of plants and insects.

Each mini-watershed can be controlled by the people who steward it. Individual landscaping choices add up to collective community action. As a result, these collective actions have the ability to restore the county’s greater watersheds.

Every landscape has unique opportunities and constraints. A thorough evaluation helps to identify them and inform the planting and design choices. Spend time in your yard, observe and take notes about it. Identifying multiple site elements will help you make decisions as you start the design process.

Notes should include the home’s architectural style and materials, good and bad views, slopes, and plants and trees you want to protect. Locate utilities and major irrigation items such as your water meter, controller, and valves.

Start With Healthy Soil

There’s so much more to soil than most people new to landscaping projects realize. Soil is the growing medium for plants. Its nutrients support healthy plant growth. Knowing and working with existing soil conditions and composition is a powerful strategy to maximize water efficiency.

Healthy soil controls the behavior of water: how it moves through the soil and how long it holds on to it. Healthy soil is essential to irrigation efficiency and plant health. It’s possible to build better soil even if existing soil conditions aren’t optimal.

See a demonstration about soil conditions in this video.

First, you must figure out what kind of soil you’re working with. There are three basic soil types: clay, silt, and sand. Clay soil is made of the smallest particles.  Sandy soil is composed of the largest particles. Loam, an equal blend of sand, silt, and clay, is considered the ideal. In general, sandy soil drains faster than clay soils.

Soil structure is also vitally important. Hard, compacted sandy soil will not absorb water. Healthy clay soil can behave more like a sponge, holding and releasing water when necessary.

San Diego County residents must often deal with clay soils and work to improve them to provide the best growing conditions and watershed.

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WaterSmart Living-Logo-San Diego County Water Authority

(Editor’s Note: The San Diego County Water Authority and its 24 member agencies offer programs, resources, and incentives to improve water-use efficiency for residential, commercial, and agricultural users. WaterSmart choices are a way of life in the region. Stay WaterSmart San Diego! For more water-use efficiency resources, go to WaterSmart.SD.org.) 

Jeff Moore rakes the zen garden included in his back yard landscape plot plan. Photo: San Diego County Water Authority

Plan For Success: Create A Plot Plan

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Any WaterSmart landscape makeover starts with observing and recording your property as it exists today. Think of it as a bird’s eye view or satellite map showing your property’s boundaries and physical features. This becomes the basis of all your planning.

You need a few basic tools to draw your own plot plan. They include a tape measure for accurate measurements, a ruler to measure and draw straight lines, a clipboard, a pencil, and paper, preferably one-quarter inch grid graph paper.

Steps to create a basic plot plan

Even if you don’t plan to install the whole project at one time, you should create a complete master plan for your landscape so the outcome is unified, including a WaterSmart planting and irrigation design. Graphic: San Diego County Water Authority Six Steps to WaterSmart

Even if you don’t plan to install the whole project at once, you should create a complete master plan for your landscape, so the outcome is unified, including a WaterSmart planting and irrigation design. Graphic: San Diego County Water Authority

  1. Start at the corner of your property.
  2. Measure across to the edge of your drive or sidewalk to your property line. Say, for example, the distance from the corner of your lot to the driveway is 28 feet 8 inches. Using the scale one-quarter inch = one foot, you would use 28 and a half squares for the space on your graph paper.
  3. Next, measure the depth of your property to the sidewalk or curb. Use this approach to locate property lines, walkways, trees, driveways, easements, and your home.
  4. Measure and mark any existing hardscape or landscape you want to save, such as walkways, mature trees, and shrubs.
  5. Use a ruler to draw your shapes and keep your scale accurate.
  6. Take note of natural drainage features. Preserving these and limiting the use of impermeable surfaces in your landscape will minimize runoff and maximize site water infiltration.
  7. Add compass directions to understand the sun’s shade effects as it moves across your yard. South-facing exposures are sunny and hot, while north-facing exposures can be cool and shady.
  8. Locate views that should be preserved and areas you want hidden from view, like your neighbor’s garbage cans.
  9. Locate features on your house such as windows, doors, and other openings. Indicate their height off the ground.
  10. Locate utilities like the water meter, electrical boxes, and overhead power lines.
  11. Note any existing irrigation heads. You’ll need to know where these are later when designing your new irrigation plan.

Now you have a road map of your landscape. Your future landscaping plans start with this baseline document.

Walk in the sun

As a part of creating a plan, take time to walk around your property during different times of day. Note areas that are sunny or shady in the morning and areas that are sunny or shady in the afternoon. When you start choosing your plants, make sure to select those appropriate to your garden’s sunlight patterns.

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WaterSmart Living-Logo-San Diego County Water Authority

(Editor’s Note: The San Diego County Water Authority and its 24 member agencies offer programs, resources, and incentives to improve water-use efficiency for residential, commercial, and agricultural users. WaterSmart choices are a way of life in the region. Stay WaterSmart San Diego! For more water-use efficiency resources, go to WaterSmart.SD.org.)

Before you get started on your WaterSmart landscaping makeover, there are significant decisions to make about plant and irrigation choices. Photo: San Diego County Water Authority

Identify Your Landscape Target Goals

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Before starting your WaterSmart landscaping makeover, there are significant decisions to make about improving your water efficiency, including plant and irrigation choices. First, determine what type of landscape will meet your needs and maximize your water savings potential.

This instructional video will help you consider your options

What to Know About Plant Choices

Why is turf the main target for saving water? Grass requires more water to keep it green than most other plants. Turf needs four times the amount of rain our region gets annually.

But saving water isn’t the only reason to get rid of your lawn. If you aren’t using your lawn as outdoor living space or a safe place for your children and animals, it’s going to waste. Consider instead an attractive type of substitute such as groundcovers or more interesting plant groups along pathways. There are many alternate choices – including limited turf.

Low to moderate water use plants

A low to moderate water use garden has some moderate water use accent plants and up to 10% high water use plants.

  • 45% low water use
  • 45% moderate water use
  • 10% high water use

Low water use plants

A low water use garden has no more than 10% high water use plants.

  • 90% low water use
  • 10% high water use

Very low water use plants

A very low water use garden has a mix of very low and low water use plants.

  • 50% very low water use
  • 50% low water use

What to Know About Irrigation Choices

Take time to learn about your possible irrigation choices. Photo: San Diego County Water Authority landscape target goals

Take time to learn about your possible irrigation choices. Photo: San Diego County Water Authority

Low-efficiency irrigation

This is not a WaterSmart method.

  • Conventional spray irrigation: Conventional spray heads apply water faster than most soils can absorb it, and they produce smaller water droplets that are susceptible to wind.
  • Impact rotors: Impact rotors are one of the least efficient methods of irrigation. They are quickly being replaced by higher efficiency options.

Moderate efficiency irrigation

  • Rotating nozzles: Best suited for spaces 15 to 70 feet wide.
  • Low precipitation sprays: Best suited for areas 5 to 30 feet wide.

High-efficiency irrigation

  • Drip emitters and inline emitters: Drip irrigation is the most efficient way to water perennials, shrubs, trees, and new turf. Drip systems apply water slowly so runoff is not an issue. You can leave the water on long enough to reach the deep roots of shrubs and trees.
  • Pressure-compensating inline drip: Best for low-maintenance.
  • Pressure-compensating point source drip: efficient distribution when properly maintained.
  • Bubblers: Best suited for trees and large shrubs.
  • Micro-spray: Best suited for tree and shrub areas of smaller size.

Whether you want to create space for entertaining, limit landscape maintenance or maintain some turf for children and pets, you can reach your water-saving goals and create an outdoor space to live in.

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WaterSmart Living-Logo-San Diego County Water Authority

(Editor’s Note: The San Diego County Water Authority and its 24 member agencies offer programs, resources, and incentives to improve water-use efficiency for residential, commercial, and agricultural users. WaterSmart Living is a way of life in the region. Stay WaterSmart San Diego! For more water-use efficiency resources, go to WaterSmart.SD.org.)