Extension Master Gardener Course – St. Charles

Extension Master Gardener Course – St. Charles
Location

MU Extension in St. Charles County
260 Brown Road Saint Peters, MO

Date

January 15, 2026 at 9:00 AM - April 23, 2026 at 12:00 PM

Pricing
Registration fee required for all participants.

About

The Extension Master Gardener program was established in Missouri in 1983 and provides in-depth horticultural training for Missourians who wish to share their knowledge of gardening. The mission of the University of Missouri Extension Master Gardener program is to support MU Extension by providing trained volunteers to assist in public horticulture education.

This course prepares Extension Master Gardeners in topics related to soils, plant nutrition, vegetables, fruits, ornamental woody plants, herbaceous plants, plant propagation, disease and insect control, lawn care, residential landscape, environmental stewardship, and safe use of pest management strategies.

Extension Master Gardener volunteers assist MU Extension by utilizing unbiased research-based information to educate, answer frequently asked gardening questions, teach through demonstration gardens, donate produce, present as speakers' bureaus, and share information.

To become trained as an Extension Master Gardener, an individual must attend a 30-hour training course and provide 30 hours of volunteer service back to their community.

  • Cost: $200
  • Contact Information: Eli Isele elihuisele@gmail.com 
  • 636 970 3000

In-Person Master Gardener Core Training in St Charles County.

Takes place Thursday mornings from 9-12. 

Runs from January 15th until April 23rd 2026. 

Located at 260 Brown Rd. 63376.  

Paper Manual provided

For more information about Mizzou Extension Master Gardeners. https://extension.missouri.edu/programs/extension-master-gardener

Sessions

Jan. 15, 2026

  • 09:00 AM - 12:00 PM CST Program Orientation/Colors

Jan. 22, 2026

  • 09:00 AM - 12:00 PM CST Plants and Their Environment

Jan. 29, 2026

  • 09:00 AM - 12:00 PM CST Using Pesticides Safely in the Home and Garden

Feb. 5, 2026

  • 09:00 AM - 12:00 PM CST Soils, Plant Nutrition and Nutrient Management

Feb. 12, 2026

  • 09:00 AM - 12:00 PM CST Plant Propagation

Feb. 19, 2026

  • 09:00 AM - 12:00 PM CST Fruit Production

Feb. 26, 2026

  • 09:00 AM - 12:00 PM CST Natives

March 5, 2026

  • 09:00 AM - 12:00 PM CST Plant disease and disorder

March 12, 2026

  • 09:00 AM - 12:00 PM CDT Insects, pollinators, IPM

March 19, 2026

  • 09:00 AM - 12:00 PM CDT Vegetable Gardening/Compost

March 26, 2026

  • 09:00 AM - 12:00 PM CDT Turf and Lawn Maintenance

April 2, 2026

  • 09:00 AM - 12:00 PM CDT Establishment and Care of Woody Ornamentals

April 9, 2026

  • 09:00 AM - 12:00 PM CDT Herbaceous Ornamentals

April 16, 2026

  • 09:00 AM - 12:00 PM CDT Residential Landscaping

April 23, 2026

  • 09:00 AM - 12:00 PM CDT Graduation