Landscape Plants for California Gardens by Bob Perry (2010)
Sunset New Western Garden Book by Kathleen Norris, ed. (2012) 



Water Use Classification of Landscape Species IV by University of California Cooperative Extension (2014) – An exhaustive anecdotal list of over 3,500 plant species throughout California:  

Inland Valley Garden Planner

Western Municipal Water District's Guide to Water-Efficient Plants for the Inland Empire

Water Saving Garden Friendly landscaping ideas and  plant list

Invasive Plant Species

Plant Right: 

California Invasive Plant Council:

California Native Plant Lists and Information

Rancho Santa Ana Botanic Garden – 

Theodore Payne Foundation – 

California Native Plant Society -

California Native Plant Society’s plant database – 

Climate Zones

Sunset New Western Garden Book (See Plant Lists at the top of this page.)

USDA: Interactive map

ET Data:  

University of California

University of California Center for Landscape & Urban Horticulture:

University of California Integrated Pest Management: This website is a treasure of credible information on more than just pests. Take a look at Quick Tips:, and a list of plants with their common pests: 

The University of California Agriculture & Natural Resources has an extensive list of informative publications at The following is a sampling that can be retrieved by entering the publication number in the search box on their website. Most publications are free.

9027: California Master Gardener Handbook
8553: Keeping Plants Alive under Drought or Water Restrictions
8536: Use of Graywater in Urban Landscapes in California
8531: Coastal California Rain Gardens
8504: Sustainable Landscaping in California
8322: Landscaping Tips to Help Defend Your Home from Wildfire
8255: Lawns ‘n’ Dogs
8228: Home Landscaping for Fire
8046: Planting Landscape Trees
8044: Lawn Watering Guide for California
8036: Water Conservation Tips for the Home Lawn and Garden
8035: Turfgrass Selection for the Home Landscape 

Horticultural Myths and The Informed Gardener

Even though this is from outside of California (Washington State University Extension), the information is applicable, informative, and well-presented for listening or reading –  

California State Model Water Efficient Landscape Ordinance 

If your landscape changes exceed 2,500 square feet and triggers a permit, you are required to comply with the State landscape ordinance. (This is based on the most recent ordinance of 2015.) Check with your local jurisdiction, as their requirements may exceed the State ordinance – 


Irrigation Consumer Handbook by the Irrigation Association –
Landscape Irrigation Best Management Practices by the Irrigation Association – 
California Irrigation Management Information System –  

Irrigation Design Guides

Hunter Irrigation –
Netafim (dripline) – 
Rain Bird – Rain Bird has a complete library of design guides. 
Irritrol (The Toro Company) – 


Hiring Professionals

Any work totaling over $500 requires a contractor’s license in California! Know your rights by visiting the California State Licensing Board – 
EPA WaterSense® Professionals –
Irrigation professionals – 
Landscape contracting professionals – 
Tree care professionals –

Environmental Advocacy

California Native Plant Society –
Inland Empire Waterkeeper –
Orange County Coastkeeper – 
Rivers and Lands Conservancy – 
Riverside County Watershed Protection – 
Santa Ana Watershed Association – 

Resource Conservation Districts

Inland Empire RCD – 
Riverside-Corona RCD –
San Jacinto Basin RCD – Phone: (909) 654-7733
Elsinore-Murrieta-Anza RCD – 

Water Conservation Districts

Chino Basin Water Conservation District –  
San Bernardino Valley Water Conservation District –

Stormwater Pollution Prevention

Orange County Watersheds – 
Riverside County Flood Control and Conservation District – 
San Bernardino County Stormwater Pollution Prevention – 

Waste Management Districts (recycling, composting, waste)

Cal Recycle –
Orange County Waste & Recycling – 
Riverside County Department of Waste Resources – 
San Bernardino County Department of Public Works – 

Water Agencies Within the Santa Ana Watershed – Whole or Part

Santa Ana Watershed Protection Authority (SAWPA) – 

Los Angeles County
Golden State Water Company serving Claremont –
Pomona, City of – 

Orange County

Anaheim, City of – 
Brea, City of – 
Buena Park, City of – 
Claremont, City of - 
East Orange County Water District – 
El Toro Water District – 
Fountain Valley, City of – 
Fullerton, City of – 
Garden Grove, City of – 
Golden State Water Company serving Cowan Heights, Placentia, and West Orange – 
Huntington Beach, City of –  
Irvine Ranch Water District – 
La Habra, City of – 
La Palma, City of – 
Mesa Water District –  
Municipal Water District of Orange County –
Newport Beach, City of –
Orange, City of –  
Orange County Water District, member agency of SAWPA – 
Santa Ana, City of – 
Seal Beach, City of –  
Serrano Water District –  
Tustin, City of – 
Westminster, City of – 
Yorba Linda Water District – 

Riverside County

Banning, City of –  
Beaumont Cherry Valley Water District – 
Box Springs Mutual Water Company – 
Corona, City of – 
Eagle Valley Mutual Water Company – 
Eastern Municipal Water District, member agency of SAWPA –  
Elsinore Valley Municipal Water District –  
Fern Valley Water District –  
Hemet, City of – 
Home Gardens County Water District – Phone: (951) 737-4741
Idyllwild Municipal Water District –  
Jurupa Community Services District –  
Lake Hemet Water District –  
Norco, City of –
Nuevo Water Company – Phone: (951) 928-1922
Perris, City of – 
Pine Cove Water District – 
Riverside Highland Water Company – 
Riverside Public Utilities – 
Rubidoux Community Services District –  
San Gorgonio Pass Water Agency –
San Jacinto, City of –  
Santa Ana River Water Company – 
Temescal Valley Water District – 

Western Municipal Water District, member agency of SAWPA – 


San Bernardino County

Big Bear Community Services District –  
Big Bear Lake Municipal Water District – 
Chino, City of – 
Chino Basin Desalter Authority –
Chino Hills, City of – 
Colton, City of – 
Cucamonga Valley Water District – 
East Valley Water District – 
Fontana Water Company – 
Inland Empire Utilities Agency, member of SAWPA – 
Loma Linda, City of –  
Marygold Mutual Water Company – Phone: (909) 877-0516
Monte Vista Water District – 
Muscoy Mutual Water Company – Phone: (909) 877-2964
Ontario, City of – 
Redlands, City of –  
Rialto, City of –  
Running Springs Water District – 
San Antonio Water Company – 
San Bernardino, City of – 
San Bernardino Valley Municipal Water District, member agency of SAWPA –   
South Mesa Water Company –  
Terrace Water Company – Phone: (909) 825-5224
Upland, City of –  
West Valley Water District –
Western Heights Water Company – 
Yucaipa Valley Water District –