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Serving Charleston, Dorchester & Berkeley Counties Through Clemson Extension

Dedicated Volunteers Growing a Greener Lowcountry

Welcome to the Clemson Extension Tri-County Master Gardener Association (TCMGA). We’re a volunteer-driven nonprofit committed to making gardening accessible, sustainable, and locally informed.

 

Through community programs, expert help, and a passion for plants, we help our neighbors garden smarter and grow greener.

 What We Do
Tri-County Master Gardener Services

More Than Gardening — We're Local Problem-Solvers

Education

We host free workshops, classes, and presentations for gardeners of all levels.

Volunteer Projects

We care for public gardens, native landscapes, and demonstration plots.

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Diagnostics

We help identify diseases, pests, and plant issues with science-backed support.

Sample Intake

We assist with soil, turf, and insect samples — and help you get results fast.

Outreach

You’ll find us at community events, markets, and festivals sharing garden tips.

Ask A Gardener

Call or visit one of our county offices for help from trained Master Gardeners.

What It Looks Like to Serve the Tri-County Area

Photos from recent outreach events, workshops, and garden projects across Charleston, Dorchester, and Berkeley.

How to Get Involved

Volunteer. Learn. Help It Grow.

Stop by any of our Extension offices.
We’re available in all three counties. Please call ahead to confirm availability.

Bring a sample when you visit.

  • Insects: in alcohol containers

  • Plants: sealed plastic bag

  • Turf: 6"x6" square with roots

Bring a Group for a Tour or Workshop.

If we can’t ID the issue, we’ll submit to Extension experts.

Submit Samples Online

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Tri County Master Gardeners Assocition

We proudly serve Charleston, Berkeley, and Dorchester Counties — including Charleston, Goose Creek, and Summerville — through Clemson Extension’s certified Master Gardener Program.

Berkeley County Extension Office  
109 West Main St.  
Moncks Corner, SC 29461  
843-719-4140  
berkeleymastergardener@gmail.com  
Mon–Fri: 8 AM–12 PM & 1 PM–4:30 PM

TEACH Center

2070 Sam Rittenberg Blvd. C412  
Charleston, SC 29407  
843-730-5205  
charlestonmastergardener@gmail.com  
Mon–Fri: 10 AM–1 PM & 1 PM–4 PM

Summerville Master Gardener Office

Wood’s Ace Hardware  
713 Old Trolley Rd.  
Summerville, SC 29485  
843-875-7234  
dorchestermastergardener@gmail.com Tues:
10 AM–1 PM, Thurs: 1 PM–4 PM,  
Fri: 10 AM–1 PM

© 2025 Tri-County Master Gardener Association | Serving Charleston SC, Goose Creek SC, and Summerville SC

Backed by Clemson Cooperative Extension | Website by Brand U Media

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