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The Master Gardener program is a volunteer organization associated with the University of California Cooperative Extension.  Our mission is to extend research based knowledge on home horticulture, pest management, and sustainable landscape practices to the residents of California and to be guided by our core values and strategic initiatives.



Our Help Desk is open to answer your questions.

  To contact the Help Desk send an email to mastergardeners@countyofnapa.org

Please provide the following information: 
our Name and Address
Phone Number 
Brief description of the problem
f possible, include a photograph
Master Gardeners will let you know if a sample is needed to help solve the problem.

If you are unable to email, you may leave us a voicemail message at 707-253-4143.
Please include all the above information in your message.


Click a Workshop to Sign Up!


Stay Safe!

Master Gardener volunteers:
  • Are trained, non-paid teaching staff certified to extend practical horticultural information to Napa County residents.
  • Complete an intensive in-person and on line training program in plant science, basic horticulture, and other topics over several months to receive certification. 
  • Stay up-to-date on current UC research based gardening information through continuing education provided by UC Cooperative Extension.  
  • For more information on Napa County UC Cooperative Extension please click the logo below:

What we provide:

Fires, After-Fire & Disaster Resources

For fire resources including a state-wide fire map, air quality and evacuation info, lost and deceased animals, and more, visit: LNU Lightning Complex Fires Resources

Fire & Post-Fire Resource from County of Napa

Post-Fire Resources from Napa Resource Conservation District (RCD) https://naparcd.org/wildfire/ 

Also see:
Fire & Disaster Resources UCCE Napa County or UCCE Sonoma County

Home Garden Produce Safety handout (2 pg pdf) - Produce Safety after a Fire 
Evacuation check-list - 1 page printable sheet from Marin Fire Safe


Mobile users: To find offerings and events menu, click the 'Vent' at the top of your Mobile Browser:
Mobile Users, Click the 'Vent' (Top, Left Side)

Contact Us

UC Master Gardeners Napa County
1710 Soscol Avenue, Suite 4
Napa, CA 94559-1315
Phone: (707) 253-4143
e-mail: mastergardeners@countyofnapa.org

COVID-19 - Master Gardeners are doing various program venues, including by zoom, outdoors and indoors in-person. For indoor events masks are recommended for everyone and required for non-vaccinated people.

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