University of Maryland Extension

Ask a Gardening Expert

Special message: The COVID-19 pandemic is affecting the University of Maryland Extension operations and we are also in the process of implementing a new system for handling your questions. HGIC will continue to strive to answer your questions within 48 hours, but there may be times when our responses will take longer. We ask for your patience at this time. Thank you!

Have a plant or pest question? University of Maryland Extension’s experts have answers!

  • For fastest service, view recent questions and answers to see if a question like yours has been addressed. Click on the subject words to find additional answers on specific topics.
  • You may also find answers in the many HGIC web pages organized by popular topic areas.
  • Please enter as much detail as possible about your question in the form below.
  • Include up to 3 photos (jpg, png, or gif files, maximum size of 5MB each and in focus).
  • Include in your photo(s) an object (ruler/coin) to indicate scale, especially important for insect ID.
  • Tree and shrub photos should include close-ups as well as a photo of the entire plant.
  • Plants to be identified should show the entire plant, preferably with flowers or seed heads.
  • If seeking a plant disease diagnosis, photos should show transition from healthy to affected plant material.

Questions from Maryland and the District of Columbia are answered by Home and Garden Information Center’s Certified Professional Horticulturists. If you are located outside of these areas, you will be asked to enter your state and county. Your question will be forwarded to the appropriate extension expert.


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