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University of Minnesota Extension

Extension is expanding its online education and resources while in-person events and classes are canceled.

Ask a Master Gardener

Have a gardening question?

Get research-based answers from local Master Gardener volunteers. 


You can find many answers on this website.

By email – use the form below

To submit your question, fill out the Ask an Expert form below or go to the Cooperative Extension website to do so. An Extension Master Gardener volunteer will reply via email within 48 hours.

Please provide as much relevant detail as possible. If you attach photos, please ensure the subject (plant, insect, etc.) is clearly visible.

In person

By phone

  • Call the main Ask a Master Gardener line: 612-301-7590. Or, you can direct your question to a Master Gardener volunteer in your community. Please leave a message, and a Master Gardener volunteer will return your call within 48 hours.
  • Unable to reach your county Master Gardener group? Email mgweb@umn.edu or call the Yard and Garden Line at the Minnesota Landscape Arboretum, 612-301-7590. Check your local Extension office for their hours and additional contact information.
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