Center for Landscape & Urban Horticulture
University of California
Center for Landscape & Urban Horticulture

Welcome!

Oak Trees on Golf Course
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.

 

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

 

 

 

Cactus Garden LA Arboretum
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.

 

 

Calif. water use pie chart 2015
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.

Wet_grass

 

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

Raised Bed Gardening

UPCOMING EVENTS

What's new in Landscape and Urban Hort?

UC ANR Online Courses have moved to eXtension

A single hose pesticide application in a landscape. (Credit: Jack Kelly Clark)

Attention Pest Management Professionals! Are you looking for continuing education units (CEUs) to complete your renewal application this year for the Department of Pesticide Regulation (DPR)? The UC Statewide IPM Program and...

Insect Pests on Citrus Trees

Asian citrus psyllid adult and eggs on young citrus leaves. <br>(Credit: M. Lewis, CISR)

[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.] Citrus trees remain a popular choice for home gardeners in California, largely due to their ease of care,...

Citrus Leafminer

Figure 1. Winding tunnels on a citrus leaf caused by feeding of a citrus leafminer larva. <br>(Credit: E. Grafton-Cardwell, UCCE)

[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.] Citrus leafminer is a moth that arrived in California in 2000 and...

Asian Citrus Psyllid

Figure 1. Asian citrus psyllid adult and eggs on young citrus leaves.<br>(Credit: M. Lewis, CISR)

[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.] The Asian citrus psyllid, Diaphorina citri, is a tiny,...

Ant Control for Insect Pests on Citrus

Figure 1. Ants harvesting honeydew from Asian citrus psyllid nymphs. (Credit: E. Grafton-Cardwell, UCCE)

[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.] Most citrus tree problems in home gardens can be solved by pruning the trees to allow better air...

Webmaster Email: vtborel@ucdavis.edu