UC Marin Master Gardeners

June

"In June as many as a dozen species may burst their buds on a single day." 

~Aldo Leopold, ecologist and conservationist

black and white striped butterfly on a white flower

Celebrate 40 Years with Marin Master Gardeners at the Marin County Fair Join us July 1–5 as we celebrate 40 years of serving Marin County through science-based gardening education.

This year's theme, Stars, Stripes, Stories, highlights the people, plants, and gardens that make Marin bloom. Bring your gardening questions to our Plant Clinic, where Master Gardeners will demonstrate how we diagnose plant problems and recommend practical solutions. Have a plant concern? Ask us!

 

 

watering green herb
Photo credit: Anna, Pixabay 

How Much Water Does Your Garden Really Need?  How much should you water? The answer depends on your plants, soil, weather, and irrigation system. Learn how to determine your garden's water needs, irrigate more efficiently, and encourage deep, resilient roots that thrive through Marin's dry season. Read our guide to take the guesswork out of watering.

 

 

What to do this month:

Upcoming events

Plant & garden care list for June

Apply mulch 

 

MARIN IJ ARTICLES

 

Featured Videos:

 

 

 

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Upcoming Events

hand pruning a branch with pruners
Event Date
July 8, 2026

Woody Plant Biology with Chris Ingram

Program: This class will cover the basic biological functions of woody trees and shrubs, including how they obtain nutrients, their growth habits, wound response, and related functions. It is…
California native gardens are naturally adapted to our conditions and provide many other benefits. Photo: Vicki Anderson
Event Date
July 8, 2026

Native Ground Covers

Program: Ground covers serve many functions in the landscape, including suppressing weeds, reducing erosion, replacing lawns, softening hardscapes, and filling in large expanses. Native groundcovers…
HAND compost pexels-lisa-fotios-1301856
Event Date
July 15, 2026

Backyard Composting

Program: Composting, the mystery of gardening! Join us and learn how to compost using kitchen and table scraps, dry and moist plant material to create nutrient-rich organic matter. Compost will…
Nasturtiums, violas, and calendula tucked in with edible greens and herbs
Event Date
July 21, 2026

Twenty Great Plants for Marin Gardens

Program: Are you new to gardening, or considering making some changes to your garden this fall? Come learn about 20 plants that do exceptionally well in Marin gardens. One of these perennials and…

Mission Statement

UC Marin Master Gardeners are University of California-trained and certified volunteers who provide research-based knowledge and information on sustainable landscape practices, pest management and home horticulture to gardeners in Marin County.