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Trees are the most valuable players in your landscape design, and you can keep them healthy by using proper pruning techniques. Photo: Benjamin Balazs/Pixabay

Take Good Care of Your Landscaping Trees

Trees are the most valuable players in your landscape design. They benefit both the environment and the communities in which they are planted. They save energy and clean the air we breathe. They help counteract the urban heat island effect and combat climate change. Trees provide protection from the elements, and even support healing. Invest in tree maintenance to promote their ongoing health.

When to prune your trees

First, for corrective or preventive measures. Second, to remove dead, crowded, or poorly angled branches or to reduce potential hazards. Third, to increase light and air penetration for healthy growth.

Routine thinning does not always improve the health of a tree. Removing large amounts of foliage all at once can reduce growth and stored energy reserves, resulting in stressed trees whose grow stalls.

Pruning should be performed in the best season for the tree to avoid potential disease, and avoid pruning just after the spring growth flush.

Use proper technique to promote healthy trees

There should be a purpose for each cut, as each cut into a tree has the potential to change the growth of the tree for many years to come.

Proper tree pruning technique is essential. Improper or careless pruning can cause damage that extends over the life of the tree. It is important to know where and how to make cuts before beginning the process.

Trees don’t “heal” the same way people do when we sustain a cut or a wound. When a tree is wounded, it compartmentalizes the wound to protect itself. A small cut does less damage than a large cut. Waiting to prune a tree until it is mature can create the need for large cuts that cannot be easily compartmentalized. This can threaten the life of the entire tree. Ongoing and regular maintenance is a must.

Ask for professional assistance

Call on a certified arborist to maintain your trees in optimal health. Arborists are specialists trained in the art and science of planting, caring for, and maintaining individual trees. They can identify and treat diseases before they spread to other trees. Find qualified professionals at the International Society of Arboriculture and the American Society of Consulting Arborists.


This article was inspired by the 71-page Sustainable Landscapes Program guidebook available at SustainableLandscapesSD.org. The Water Authority and its partners also offer other great resources for landscaping upgrades, including free WaterSmart classes at WaterSmartSD.org.

Professionals trained in different aspects of sustainable landscaping can help you ensure the success of your project. Photo: Water Authority

Getting Help From Landscaping Professionals

The perfect time to plan your new beautiful, livable and WaterSmart landscape is in summer because fall is the ideal time to plant a garden in this Mediterranean climate we all enjoy. The WaterSmart Landscape Makeover Series and related educational programs are a great way to gather the skills needed to make a lawn transformation happen. The four class series, which includes one-on-one design help from local design professionals, is currently enrolling for July locations in Central San Diego and Escondido.

Register for Free WaterSmart Landscape Makeover Classes:

Escondido – Saturday mornings July 13, 20, 27 & August 3

San Diego (Mission Hills) – Wednesday evenings July 10, 17, 24 & 31

Many homeowners are eager to create a beautiful new sustainable landscape on their own, with guidance from organizations like the San Diego County Water Authority. But sometimes it’s a smart idea to call on professionals trained in different aspects of the watershed approach to landscaping. With a little help, you can ensure the success of your project.

Assessment organizations including site assessment and testing, various measuring services, surveyors, soil testing services and even Google Maps are available. Property measuring and survey companies can develop more detailed site plans with elevations, siting of trees and landscape amenities.

Planning and design professionals can help you develop a working plan and budget for your landscaping. The plan should include drawings, resource lists, and an outline of the techniques needed to implement the plan. Landscape designers and architects can help you create a conceptual design. Working with a licensed professional is recommended if you have hillsides and slopes, or complicated structures.

Landscape installation and construction professionals are licensed contractors who specialize in building landscape, and can work on all aspects of a sustainable landscape plan. You may be able to install your own garden, but if you get stuck you can call upon the expertise of an experienced pro who carries all the necessary insurance and is knowledgeable about permitting requirements.

Rainwater catchment specialists include people certified by the American Rainwater Catchment Systems Association (ARCSA) to design and install rainwater capture systems. These pros can bring specialized expertise to your project, particularly if it involves installation of an active capture system such as a cistern. The water savings you achieve can offer you a solid return on investment.

Irrigation system consultants include people with certification by an EPA WaterSense ® organization to provide irrigation system auditing, design, and maintenance. They can help you improve the efficiency of your irrigation system. The Irrigation Association, California Landscape Contractors Association Water Managers, Qualified Water Efficient Landscapers, and G3 Watershed Wise Landscape Professionals all provide searchable lists of qualified people.

Plant selection specialists include your local retail nursery and garden center, native plant societies, Master Gardeners, and professional gardeners. Learn from them, and do your homework to select plants that are both climate appropriate and locally native to your area, and you will be rewarded with a better understanding and appreciation of your garden as it evolves over the years.

Maintenance of sustainable landscapes requires an understanding of the watershed approach to landscaping and water management. Even if you eliminate the need to mow a lawn, there remains the need for fine pruning, irrigation tune-ups, cleaning and checking water retention devices, and soil building. Maintenance people must have the know-how to implement mulching, basic irrigation adjustments, and care of native plants.

Certified arborists are specialists trained in the art and science of planting, caring for, and maintaining individual trees. Find qualified professionals at the International Society of Arboriculture (ISA) and the American Society of Consulting Arborists (ASCA).

Take advantage of the public education provided by your local water district, various nonprofit organizations, and the San Diego County Water Authority. Classes are often free of charge. For more information, visit WaterSmartSD.org.


This article was inspired by the 71-page Sustainable Landscapes Program guidebook available at SustainableLandscapesSD.org. The Water Authority and its partners also offer other great resources for landscaping upgrades, including free WaterSmart classes at WaterSmartSD.org.

San Marcos resident Jeff Moore's landscape makeover won recognition in the 2018 Landscape Makeover Contest. Photo: Water Authority

WaterSmart Landscape Contest Seeks Inspiring Entries

The 2019 WaterSmart Landscape Contest invites homeowners across San Diego County to share their landscaping makeovers to inspire and encourage more people to consider their own makeovers by showcasing the beauty and variety of water-efficient landscapes.

The winning landscape from each of the participating water agencies will receive a prize valued at $250 and be recognized in print and online publications. The deadline to apply is April 26. Enter the contest here: www.landscapecontest.com

Customers of these local water agencies are eligible: the City of Escondido, Helix Water District, the City of Oceanside, Olivenhain Water District, Otay Water District, Padre Dam Municipal Water District, Rincon del Diablo Water District, City of San Diego, San Dieguito Water District, Sweetwater Authority, Vallecitos Water District, Vista Irrigation District and California American Water.

Jeff Moore stands in his San Marcos front yard featuring his award-winning waterwise landscaping work. Photo: Water Authority

Contest rules vary with each agency, but all entries will be judged on the same criteria. Judges are looking for overall attractiveness of the landscaping including its curb appeal and whether the plants are well maintained; a design with adequate plant coverage and permeable soil able to thrive with less water; efficient methods of irrigation; and climate-appropriate plant selection with minimal turf.

Water-efficient landscaping is beautiful

Raised planter beds and a living wall are features in this award-winning Olivenhain area landscaping project. Photo: Courtesy OMWD

San Diego County residents have embraced the new WaterSmart approach to their landscaping, installing water-efficient gardens and removing thirsty turf in increasing numbers.

One of those swapping turf for sustainable landscaping is San Marcos homeowner Rhonda Holmes. She won the 2018 Vallecitos Water District Landscape District contest. Holmes transformed the landscape at her home shortly after buying it. Her outdoor remodel included replacing the front and backyard turf areas with water-efficient plants.

She designed a garden that was smart on water while being beautiful at the same time.

“It’s really easy to do,” Holmes said. “I’d love to see more people try to do their part.”

The contest aims to inspire residents to consider a landscape makeover by showcasing the beauty and variety of water-efficient landscapes.

Video of 2018 Vallecitos Water District winners

Many previous winners have taken advantage of the San Diego County Water Authority’s free WaterSmart landscape makeover classes to help them successfully create and complete their projects. More than one million square feet of turf has been targeted for removal by course participants, generating a water savings potential of 36 million gallons annually.

Interested residents can learn about the next series of Landscaping Makeover classes and register on the WaterSmartSD website.

In addition to the benefits of reducing water consumption, water-efficient landscaping can improve a home’s curb-appeal and value, and reduce the need for costly, time-consuming maintenance. Many native plant selections also have fire-resistant qualities and provide habitat for local wildlife.

Outdoor watering accounts for roughly half of statewide urban use, and more in inland areas, according to a Public Policy Institute of California report. Savings can come from installing more efficient irrigation systems and replacing thirsty lawns with less thirsty plants.