Plant Information Service

Plant information Service routinely asks visitors to submit plant samples for accurate diagnoses and identifications. However, we will no longer allow samples of boxwood (Buxus), pachysandra (Pachysandra), and sweet box (Sarcococca) to be brought to the Garden, in order to prevent the spread of boxwood blight, a devastating fungal disease that affects these plants. Please feel free to contact us with questions about boxwood blight without bringing plant samples to the Garden. You can also click here for more information about boxwood blight.

Click here for Plant Information Service hours

Send us an email at Click here to show mail address
Plant Information Hotline: (847) 835-0972

Master gardeners and horticulture specialists provide the following services:

  • Recommendations on care of trees, shrubs, annuals, perennials, vegetables, fruits, and houseplants
  • Diagnosis and treatment options for control of insects, diseases, and cultural disorders
  • General gardening information on soils, composting, pruning, mulching, and more
  • Plant and insect identification
  • Recommendations on plant selections for northern Illinois
  • Assistance with locating purchasing sources for particular plants

Contact us online with your:

General Questions

Plant Diagnosis

Plant or Insect Identification

Please be sure to read our guidelines for specimen collection and submission if you will be bringing in a sample for diagnosis. If you will be sending images through the online forms above, please send files in one of the requested formats.

Remember! Our diagnosis is only as good as your sample. Please follow our guidelines for collecting and submitting samples in order for us to provide you with accurate answers to your questions.

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The Plant Information Service is made possible with the generous support of

Bartlett Tree Experts