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Welcome to the Center for Landscape and Urban Horticulture (CLUH), an information resource of the University of California Cooperative Extension (UC Cooperative Extension). The CLUH supports UC Cooperative Extension educational and applied research programs serving California's environmental horticulture industry. This site features science-based information on:

Please review our Mission Statement.

For the latest science-based information on landscape water needs, please visit our pages under Landscape Water Conservation and Irrigation Management.

Information is contributed by University of California Cooperative Extension scientists. All content is reviewed by these or other experts to assure it is authoritative and science-based. Featured are summaries of technical topics, fact sheets, newsletters, reports, commentary, and web links.

THE 9%: Landscape irrigation accounts for just 9% of water use in California, yet landscapes are under relentless attack as California confronts ongoing drought. The facts presented here show how these attacks are misguided and that there are ways to conserve water without degrading landscape plantings.

Does the landscape you manage have a water budget or water conservation goal that seems impossible to meet? Read about Five Simple Steps for Conserving Landscape Water.

For Home Gardening information and resources, please visit the University of California Garden Web.

UPCOMING EVENTS

What's new in Landscape and Urban Hort?

Winter is Coming- IPM Tips for Yard and Garden

Oleander leaves with damage to leaves by freezing weather. (Credit: Jack Kelly Clark)

Days are getting shorter and evenings cooler as winter approaches. Sweater weather also means a change in the to-do list around the yard. Here are a few things to consider when preparing your landscapes and gardens for winter. Frost Protect...

Bed Bug-Free Holiday Hosting (Part 2)

Bed bug detector under furniture. (Credit: DH Choe)

Holidays are a time for welcoming family and friends. But what if your loved ones accidentally bring along unwanted guests—bed bugs? These insects are excellent hitchhikers, hiding easily in luggage and sometimes on clothes. Bed bugs can be found...

Bed Bug-Free Holiday Travel (Part 1)

Egg, immature bed bugs, adult bed bugs (Credit: DH Choe)

Tis the season for holiday travel. As you make reservations for rental accommodations to visit family and friends, we wanted to share a few suggestions to help you avoid bringing bed bugs home with you. Regardless of what...

Oh Deer!

The sight of deer in the wild can be delightful but when these animals invade your garden, devouring everything in sight, people's ideas might change. The internet is full of advice for ridding your garden of deer, but beware, much of it is...

Asian Citrus Psyllid Webinar for Backyard Gardeners

Brown adult, yellow nymphs, and white wax of Asian citrus psyllids.<br>(Credit: M Rogers)

We hope by now most people have heard about and are aware of the Asian citrus psyllid (ACP), a small brown insect that carries a deadly citrus disease called huanglongbing (HLB), threatening all backyard citrus trees as well as the statewide citrus...