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St. Louis Master Gardeners are trained volunteers who enjoying sharing their gardening knowledge with others.

St. Louis Master Gardeners Horticulture Answer Service

Master Gardeners are in our office every Monday through Thursday from 9 a.m. to 2:30 p.m. to answer all of your plant questions.

volunteers at a social event

  • Please stop by, or call us at 314-400-7657 to speak to a Master Gardener during those times.
  • You can also email at any time with your plant questions. Note: The hotline is not staffed 40 hours a week, but you will receive a response in a timely fashion. 
    • Please give detailed questions and include pictures. Pictures should be as follows:
      1. Distance shot showing its environment.
      2. Closer shot of just the plant itself.
      3. Up-close shot showing the area of concern.
      4. Close-up and overall view of the plant/tree where it emerges from the soil.
  • If you have questions about commercial horticulture or soil test interpretations, feel free to contact our horticulturist, Elihu Isele, at 314-400-7388.

Master Gardeners at work

Nathan Brandt (former horticulture specialist) and the St. Louis Master Gardeners were hard at work beautifying the grounds at the Kathy J. Weinman Shelter. The volunteers are transforming the space to provide some comfort for the women and children residing within the facility. This is one example of the partnership MU Extension has with St. Louis County. This began with a phone call requesting help with a flower bed. Do you have community horticulture project that you would like help with? Give Holly a call: 314-577-9442.

Master gardeners gardening

Get in-depth horticultural training and join the Master Gardeners in “helping others learn to grow.”

Missouri map with a dogwood flower overlaid on it

Missouri Master Gardeners, use this online system to report your volunteer hours.

garden journal on table with gloves

Put your plans, thoughts and results on paper to help ensure successful gardening.