Demonstration Garden Highlights Four Key Principles of Sustainable Landscaping

The San Diego County Water Authority unveiled a renovated demonstration garden at its Kearny Mesa headquarters designed to inspire more residents to create outdoor spaces that achieve multiple environmental benefits.

The four key principles of the Sustainable Landscapes Program.

The approximately 3,000-square-foot garden provides a tangible example of the recommendations of the San Diego Sustainable Landscapes Program, or SLP, and highlights four key principles of sustainable landscaping.

Here’s what to look for when visiting the garden:

  • Healthy, Living Soils: Healthy, living soils rich in organic content feed a complex soil food web. The soil holds water like a sponge and has nutrients for better plant health. Healthy soil may also play an important role in carbon sequestration. The garden has a 1.3 in layer of compost mixed into the soil and is topped with 3 inches of mulch to suppress weeds and reduce evaporation.
  • Climate-Appropriate Plants: A large selection of beautiful groundcovers, shrubs and trees is compatible with San Diego’s mild Mediterranean climate. These plants use less water and exhibit diverse colors, textures and shapes, while providing endless design opportunities. The garden uses more than 20 varieties of very low to moderate water-use plants, placed in hydrozones where plants with similar irrigation needs are grouped together.
  • High-Efficiency Irrigation: A smart irrigation controller adjusts water automatically in response to site and changing weather conditions. High-performance distribution components regulate pressure and are tailored to fit the exact watering needs of different plants in the landscape. The garden has inline drip irrigation and rotating nozzles to maximize water-use efficiency.
  • Rainwater as a Resource: Sustainable landscapes make the most of rainfall onsite. By slowing its flow, water is captured from rooftops and other hard surfaces so it can sink into the soil or be stored for later use. The garden demonstrates rainwater harvesting through a bioswale and detention basin next to the building and rain barrels along the entryway.
Visitors can check out the exhibit sign to learn all about key sustainable landscaping principles.

The garden also features an exhibit-quality sign to introduce visitors to key sustainable landscaping principles. The sign includes a QR Code that enables visitors to use their smartphones to quickly locate related SLP resources at sustainablelandscapessd.org.

Smaller signs throughout the landscape identify specific plant types. Free brochures on sustainable landscaping featuring the landscape’s design plan and plant palette are also available for visitors to take home.

Mexican Bush Sage at the Demonstration Garden.

To learn more about water conservation incentives, programs, resources and more, go to watersmartsd.org or follow SDCWA on Facebook, Twitter and Instagram.

Preliminary Counts from a Remarkable Coastal Cleanup Day as Results Continue to Roll In

While results continue to trickle in from this year’s Coastal Cleanup Day, one result we can’t overlook is the incredible time that was had by all of our participants! From volunteers picking up litter at the beaches to groups removing graffiti and refurbishing playground equipment, the volunteers expressed the immense joy they took away from the experience! As a direct result of all of that hard work, San Diegans are now able to enjoy more than 100 clean outdoor spaces free of litter!

ILACSD’s Pauline with our sponsors and speakers officially kicking off Coastal Cleanup Day by planting a tree.

For the past 30 years, I Love A Clean San Diego has coordinated Coastal Cleanup Day in San Diego County as part of a statewide and international cleanup effort to restore coastlines across the globe. The effort is coordinated statewide by the California Coastal Commission and internationally by The Ocean Conservancy. While international totals for 2017 are not available yet, in 2016, in 92 countries around the world 504,583 volunteers picked up more than 18 million pounds of trash!

A before and after look at the D Street Fill cleanup site in National City!

ILACSD team members woke up extra early on Saturday morning to lead more than 250 volunteers in beautification projects at Golden Hill Park. Even with volunteers spread out among various beautification projects including mulching, tree planting, mural paints, and storm drain stenciling, they still managed to clear out over 2,500 pounds of debris! 

As for the entire county, preliminary totals for Coastal Cleanup Day in San Diego indicate that we had over 7,500 volunteers cleaning up 105 local creeks, canyons, beaches, and bays as part of this event!  While the trash totals are still being compiled, we are expecting that more than 150,000 pounds of trash were removed from San Diego County. On top of the trash removal, volunteers also beautified and enhanced the local environment through painting murals, removing invasive plants, planting trees, mulching, and performing a variety of park maintenance projects.

Volunteers painted a mural at the Golden Hill Recreation Center!
Volunteers preparing an area to be mulched.

Every year at Coastal Cleanup Day and Creek to Bay, our two annual countywide cleanups, we see that cigarette butts and small plastic items are our most commonly found items. While unfortunately, this information is not that surprising, we are often stunned by some of the unique pieces of litter that our volunteers find. Some of the favorites this year include a dish rack, costume vampire teeth, RV door, an elephant shrine, and a Charger’s jersey.

Volunteers at Spanish Landing found dentures during their cleanup.

Many thanks go out to all that donated their time and effort to volunteer with us on Coastal Cleanup Day. We feel lucky to put on such a beloved event with dedicated and wonderful participants every year! This year, we had individuals, groups, and corporate volunteer teams out all over the county representing various organizations including SDG&E, Wells Fargo, Lincoln Military Housing, Bank of America, San Diego County Water Authority, San Diego Metropolitan Credit Union, Illumina, Evans Hotels, and a large number of scout troops!

Bank of America volunteers winding down after cleaning up the Golden Hill site!

 

Volunteers from SDG&E excited to clean up at the Scripps Ranch site.

See more pictures from Coastal Cleanup Day and our other cleanups on Facebook and Instagram!

Looking to join us at our next event? We have a quite a few volunteer opportunities coming up. Visit our upcoming events page for more information on how to get involved!