Our 300+ active members provide horticultural information and assistance to the public for community service and gardening pleasure. We volunteer at the Botanical Garden’s Kemper Center as well as throughout the Garden’s grounds and with community groups in the St. Louis region.
Our 2025 classes are full, but you can fill out the form below to get notified when our 2026 classes open.
Courses are taught by gardening professionals and include Missouri Botanical Garden staff, MU Extension horticulturists, and community specialists.
Classes include plant identification, pruning, Missouri natives, perennials and annuals, landscape design and ‘what not to plant.’ Additional training includes tree ID walks, tours and other educational opportunities. Once certified, Master Gardeners volunteer 40 hours a year in gardens and facilities throughout our communities.
Email stlgardenhotline@gmail.com at any time with your plant questions. Give us all the detail you can and include pictures of the following:
Check out our Speaker’s Bureau here!
Each year St. Louis Master Gardeners make over 100 presentations to garden clubs, schools, businesses, churches, neighborhood and civic organizations. Presentations are typically 50-60 minutes in length.
We also have three walking and teaching tours of Missouri Botanical Garden’s specialty gardens and the annual orchid display.
Check out our project sites here!
St. Louis Master Gardeners are involved with local community horticultural projects throughout St. Louis City, County and Shaw Nature Reserve. Parks, streetscapes, schools, community gardens and more all benefit from the hands-on gardening and teaching by Master Gardeners.
Active Master Gardeners contribute at least 40 hours of volunteer service each year.
We welcome inquiries about the St. Louis Master Gardener Program and we appreciate feedback about our website. Use the links below to contact either the Master Gardener Volunteer Coordinator about the program or the Master Gardener Webmaster about the website.
University of Missouri Extension
is a sponsoring organization
Missouri Botanical Garden
is a sponsoring organization
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Member Chapter – MOMGA – Missouri Master Gardeners Association