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Biotechnology is a University of California database of biotechnology information that can be queried for plant questions and answers.


kinderGARDEN is an introduction to many ways children can interact with plants and the outdoors. From Texas A&M University.


Asian Citrus Psyllid Quarantine Information Department of Food and Agriculture website with a quarantine map and related information for the Asian citrus pysllid.

California CitrusThreat Photos and information for the Asian citrus psyllid.

Citrus for the Home Garden University of California Cooperative Extension, seven page pdf document describing citrus for the home garden. Topics include varieties, where, when and how to plant, care, pests and problems.


Community Gardens and Farms Survey and List Update If you have a community garden, educational garden or farm, or a CSA, please complete our short survey. Just click on the link to access the survey.

The information you provide will be used to update our Community Gardens and Farms list and will provide us with information that will help us develop resources to serve the needs of our local community gardens. The list will be posted on the San Diego Master Gardener's Website and will also be made available to other relevant websites.

Thank you for taking the time to share your information and help spread the word about all the wonderful community gardens and farms we have in San Diego County.

Find a Community Garden or Farm A PDF of local community gardens and farms with contact information.


Fruit & Nut Research & Information Center is the University of California Center for research and information on fruits and nuts. It has everything you every wanted to know about fruits and nuts.


National Gardening is a very informative and well-designed site. Includes selected articles from the current issue of the NGA magazine, a searchable article library, and a Question and Answer library and service.

Garden Web has several online gardening magazines and resources including; Sesbania's Garden Tips, The Rosarian, the Cyber-Plantsman, the Garden Spider's Wed and the GardenWeb Forums.


OHRIC provides research, news, and information on the California horticulture industry. OHRIC is a University of California Cooperative Extension resource, located at the Department of Environmental Horticulture at UC Davis. This is a cooperative project among many people including UC Extension specialists, county advisors, and Experiment Station faculty. The goal of OHRIC is to assist industry, government agencies, and the general public with ornamental horticulture problems


EXTOXNET is a searchable index of Pesticide Information Profiles (PIPs), documents which provide specific pesticide information relating to health and environmental effects. EXTOXNET is a cooperative effort of University of California-Davis, Oregon State University, Michigan State University, Cornell University, and the University of Idaho.


UCIPM, Garden and Landscape is the University of California Integrated Pest Management (UCIPM) official guidelines for pest monitoring techniques, pesticides, and nonpesticide alternatives for managing pests, including information from Pest Notes and The UC Guide to Solving Garden and Landscape Probems.

UCIPM, Crops and Agriculture is the University of California Integrated Pest Management (UCIPM) site for crops and agriculture. It contains information about managing pests, including the official guidelines for monitoring pests and using pesticides and nonpesticide alternatives for managing insect, mite, nematode, weed, and disease pests.

INVASIVE PESTS Invasive pests are in California and they sure are hungry. Invasive pests are any kind of damaging animals, insects, plants or plant diseases that are not native to the State. Invasive pests can rapidly expand their populations and feed on local plants, crops and other species. As they compete with native species for resources, they cause damage to local ecosystems and wreak havoc on crops and local plant life.


CalPhotos: Plants is a searchable index of 77,871 images of plants by scientific or common name.

San Diego Rose Society Home of the San Diego Rose Society. Check here for their calendar and everything about roses.


Western Bluebirds in San Diego County A website devoted to local bluebirds. Everything from behavior and predators to how to build a next box.


California School Gardens Network is a collaborative effort of a number of educational institutions, non-profit organizations, private and government partners committed to enhancing learning through the use of teaching gardens in schools and other community settings.


Street Tree Selection Guide is the City of San Diego publication about selecting street trees for this area. Trees are vital part of San Diego's infrastructure, contributing energy savings, filtering Stormwater runoff and enhancing property values. The guide encourages choices compatible with the planting locations, minimizing damage to public improvements and promotes species diversity. The publication is in pdf format.

Urban Forest Ecosystems Institute A Tree Selection Guide listing 1,481 trees with up to 49 attributes and over 6,050 photos for 1,068 trees available from tree detail records. Search by tree attribute or by name.

Urban Forestry Resource Center To improve understanding of the importance of plants and trees in developed areas, the California Center for Sustainable Energy has established an Advice and Technical Assistance Center ( ATAC) for Urban Forestry. ATAC is a program of the California Department of Forestry and Fire Protection (CAL FIRE) and funded by a $400,000 CAL FIRE grant to promote urban forestry and sustainable landscaping.


UC Guide to Healthy Lawns is the University of California guide for home gardeners and managers of parks, school grounds, and other low-maintenance turf. This website contains information on all aspects of lawn management including: choosing turf species, planting and establishment, renovating lawns, maintaining lawns including scheduling irrigation, calculating fertilizer rates, mowing, diagnosing problems, and managing insect, disease, vertebrate and weed pests.


VRIC is the University of California Vegetable Research and Information Center. Its mission is to foster appropriate research, collect and disseminate information relevant to consumers, growers and processors in the California vegetable industry and to continue its role as a leader and nationally-recognized source of research and information in support of the vegetable industry.

San Diego Vegetable Planting Guide This is a publication of the Cooperative Extension University of California , County of San Diego, Vincent Lazaneo, Farm Advisor. It describes common cool and warm season vegetables, and suitable planting dates for coastal and inland San Diego County regions. This publication is in pdf format and prints to 4-page.

Tomato Tips This is a publication of the Cooperative Extension University of California , County of San Diego, Vincent Lazaneo, Farm Advisor. It provides information on growing tomatoes, including, selection, care, pests and diseases, starting from seed and other topics . This publication is in pdf format and prints to 4-page.


WeedRIC is the University of California Weed Research and Information Center. The Center is an interdisciplinary collaboration that fosters research in weed management and facilitates distribution of associated knowledge for the benefit of agriculture and for the preservation of natural resources. The site contains many useful links.

Weed Photo Gallery is the University of California collection of photos of common weeds.


Wildfire Zone Wildfire Information for the San Diego Region - Before, During and After a Fire

Inform San Diego Database of Community, Social, Health and Government Services in San Diego

211 San Diego Update on current emergencies