St Charles County Master Gardeners
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636-875-7457
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Become a Certified Master Gardener
2024 in-person Core Training Program
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Are you interested in gardening and horticulture? We welcome participants with all levels of experience.
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Are you curious and love to learn and to share your knowledge?
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Can you make a commitment to the program – classroom training plus flexible volunteer hours during the year?
Demonstration Garden

Greenhouse:
The Master Gardener greenhouse is a 24 x 48 North slope hoop house with Lexan end walls. The ten-year-old building was dismantled, transported in pieces and rebuilt by our MG's. Site preparation took two years.
We use this facility to propagate and grow on all of our annuals, herbs, cool and warm season vegetables and some of our perennials for the annual plant sale. With 12 benches, three pH corrected water stations, circulation and exhaust fans, and thermostat-controlled heater, we have been able to grow over 4500 transplants to market size. We are currently using two germination tables for seed propagation and continue to increase our efficacy in monitoring plant growth, pest management and disease prevention.
We also use the facility for hands-on workshops and classes for the public and Master Gardeners