Workshop: Building Healthy Soils for Home Gardens and Landscapes
UC Master Gardeners will discuss the details of soil testing, including when and how to test, as well as the roles of fertilizers, amendments, and mulch in soil improvement.
UC Master Gardeners of San Luis Obispo County
Welcome
UC Master Gardeners are trained volunteers who share research-based gardening and pest management information with the public. We help home gardeners make practical, informed decisions that support sustainable landscapes, water-wise practices, and healthy plants.
You can connect with us by attending a workshop, signing up for updates, or contacting our helpline with a gardening question.
Stay connected
Upcoming workshops and events
Registration is typically required. Each workshop link opens the registration form with location details.
- February 21, 2026, 10:00 AM–12:00 PM: Workshop: Tomatoes: A to T (San Luis Obispo)
- Plus: Plant Sale 9:30AM–12:30 PM (same location as workshop)
- March 7–28, 2026, 1:00 PM–4:00 PM: Paso Robles Victory Garden workshop series (Paso Robles)
- March 21, 2026, 10:00 AM–12:00 PM: Workshop: Building Healthy Soil for Home Gardens and Landscapes (San Luis Obispo)
- Plus: Plant Sale 9:30AM–12:30 PM (same location as workshop)
- April 18, 2026, 10:00 AM–12:00 PM: Workshop: Roses: Pruning, Pests, and Diseases (San Luis Obispo)
- Plus: Plant Sale 9:30AM–12:30 PM (same location as workshop)
- May 16, 2026, 10:00 AM–12:00 PM: Workshop: How to Grow and Preserve Your Own Herbal Bounty (San Luis Obispo)
- Plus: Plant Sale 9:30AM–12:30 PM (same location as workshop)
- June 20, 2026, 10:00 AM–12:00 PM: Workshop: Citrus and Avocado (San Luis Obispo)
- Plus: Plant Sale 9:30AM–12:30 PM (same location as workshop)
Farmers Markets
UC Master Gardeners have booths on a semi-regular basis at select San Luis Obispo County farmers markets. Bring a sample or photo and we’ll help troubleshoot.
Farmers Markets Information & Schedule
Have a Gardening Question?
Visit our contact page for helpline hours, email options, and office locations.
Contribute for a Better Future
Upcoming Events
Workshop: Roses — Pruning, Pests, and Diseases
A little rose care this spring can lead to healthier roses and more blooms. Learn about when to prune roses (hint: some should be pruned in late spring), and how to prevent or treat common diseases…
Workshop: A Primer on Growing Citrus & Avocado
UC Master Gardeners will present on growing citrus and avocado trees for home gardens. The workshop will cover the unique features of different varieties of avocados. Care of these crops and …