hotline

Contact Us - Hotline

Do you have home gardening questions?

  • Read our tips on plant problem diagnosis first. These tips may help you solve your problem, but even if they don't, they'll give you an idea of the kinds of questions we're likely to ask.

  • In Santa Clara County, contact the Master Gardener Hotline for gardening tips between 9:30 a.m. to 12:30 p.m., Monday to Friday at 408-282-3105 or send us your question on-line.

  • For gardeners in northern Santa Clara County, contact the Gamble Garden Master Gardener Hotline on Friday between 1:00 p.m. and 4:00 p.m. at 650-329-1356.

  • The Master Gardener Program Advisor is:
    Dr Maria de la Fuente Ph. D.
    County Director & Farm Advisor
    medelafuente@ucdavis.edu
    408-282-3131

  • Our address is:
    University of California Cooperative Extension
    (Staff List)
    1553 Berger Drive, Bldg. 1
    San Jose, CA 95112
    Telephone: 408-282-3110
    FAX 408-298-5160
    Master Gardeners 408-282-3105
    Directions to Office

  • For other counties in California, visit the Directory of UCCE offices.

For web site related issues

Please email us at webmaster@mastergardeners.org

Gamble Garden


In Palo, Alto, UCCE Master Gardeners are available where they maintain a Hotline at Gamble Garden. The public is invited to call the MG Hotline and ask a certified Master Gardener most urban gardening questions or to consult on numerous gardening problems confronting the home gardener. Insect problems, pest identification, and safe pest control, as well as plant diseases and modern and non-toxic plant disease controls are just some of the issues that are often discussed with the Master Gardeners at Gamble Garden.

The Hotline is open for questions by telephone or walk-in every Friday from 1pm to 4pm.
You can reach the Gamble Garden MG Hotline at 650-329-1356 extension 205


There is also a Plant Clinic at Gamble Garden where the public may drop in and consult directly with a certified Master Gardener on plant problems and bring plant samples for diagnosis. The Plant Clinic is held during Hotline hours every Friday at 1pm to 4pm.

Free MG garden Workshops on various relevant garden topics are presented on the second Saturday of every month. Past topics have included Oak tree landscaping, Seed Starting, Veggie Gardens, Organic Rose Gardens, and many other topics. No reservations needed.

Second Saturday MG garden Workshops are in the main house library, 9am to 11am.

When you visit the Gamble Garden Hotline, Plant Clinic or an MG workshop, leave plenty of time afterwards so that you can stroll through the beautiful gardens at Gamble that are always in bloom!

Who We Are

We are trained volunteers with the University of California Cooperative Extension Master Gardener Program; our mission is to extend the ability of the local Cooperative Extension office to provide practical, scientific horticulture and gardening information to the citizens of Santa Clara County. Learn more on the statewide Master Gardener website.

We're actively involved in the community, providing services including:

  • Adult Education classes that teach sustainable gardening techniques for home landscapes and orchards, including in-depth classes on vegetable gardening. 
  • KKUP's (91.5 FM) Old Time Farm and Garden Show is presented the 4th Thursday monthly from 10:00 AM to noon. Hosted by Master Gardeners, the public is encouraged to call (408) 260-2999 with gardening questions and listen to visitors on gardening topics.
We hope you find our services useful and we look forward to helping you with your gardening challenges!
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