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UC Master Gardeners of Humboldt & Del Norte Counties

UC Master Gardener 2025 Education and Plant Sale Event
The Coastal Gardener Newsletter

The Coastal Gardener Newsletter

The Fall 2025 issue is now available.

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Advice to Grow By

Ask a Master Gardener is a free public service available to home gardeners in Humboldt & Del Norte Counties. Our help desk is staffed by Master Gardener volunteers who are happy to assist you with any garden-related questions or concerns.         

Ask a Master Gardener
  • fruit & vegetable gardening
  • tree & plant management
  • composting
  • pest management
  • beneficial insects
  • plant diseases
  • water conservation
  • other home horticulture topics

Submit your question

Who We Are

The UC Master Gardener Program has been conducted in Humboldt County since 1988. Since then, over 1,000 people have taken this horticulture training in Humboldt and Del Norte Counties. The Master Gardener volunteers organize to extend educational services to their communities. The four critical areas are: Healthier Plants, Healthier Environment, Healthier Gardeners, and Healthier Community.

More about us

Contribute for a Better Future

Office Locations

UC Cooperative Extension

5630 South Broadway
Eureka, CA 95503
United States

Fax Number

Mission Statement

“To extend research-based knowledge and information on home horticulture, pest management and sustainable landscaping practices to the residents of California.”