Horticulture

trees in forest, bee on flower, hands with radish in garden, logos

Illinois Extension has a vast collection of resources addressing horticultural interests. We recognize that home and commercial horticulturalists each have unique needs, so we've cultivated a set of resources designed to address their top concerns. Check them out below.

Master Gardener Help Desk

Our Master Gardener Help Desks are open for the 2022 growing season.

  • DuPage County:
    • Monday - Wednesday - Friday | 10 a.m. to 1 p.m.
    • uiemg-dupage@illinois.edu | 630-955-1123 | 1100 E. Warrenville Road, Suite 170, Naperville 60563
  • Kane County
    • Monday through Friday | 9 a.m. to 1 p.m.
    • uiemg-kane@illinois.edu | 630-584-6166 | 535 S. Randall Road, St. Charles 60174
  • Kendall County
    • Monday - Wednesday - Friday | 9 a.m. to 12:30 p.m.
    • uiemg-kendall@illinois.edu | 630-553-5823 | 7775B IL Route 47, Yorkville 60560

Find a location or learn more about visiting our offices.

General Help Desk Email Submission Tips:

  • In addition to your question, please include as much additional information as possible:
    • This could include planting date, age of plant, chemicals used, number of plants affected, where found, patterns, when symptoms were first noticed, etc.
  • Please check your photos before submitting them. Are they clear and in-focus?
  • When possible, please include a size reference in your photos (such as a pen, ruler, or a coin).
  • For plant identifications, please include photos of the whole plant AND close-ups of plant parts.
    • Parts may include leaves, flowers, roots, fruit, seeds, etc.
  • Send a maximum of 10 images per sample/question.

Learn More about Master Programs

Email: uiemg-kane@illinois.edu

during this time, please see e-Help Desk info above

April through September, Mon - Fri, 10 a.m. - 2 p.m.

October, M W F, 10 a.m. - 2 p.m.

Phone: 630-584-6166

Address: 535 S. Randall Road, St. Charles IL 60174

Email: uiemg-kendall@illinois.edu

during this time, please see e-Help Desk info above

April through September, Monday through Friday, 9 a.m. - 12:30 p.m.

October, M W F, 9 a.m. - 12:30 p.m.

Phone: 630-553-5823

Address: 7775B IL Route 47, Yorkville IL 60560

Email: uiemg-dupage@illinois.edu

during this time, please see e-Help Desk info above

April and May: Weekdays - 9 a.m. to noon

June through October - TBD

Phone: 630-955-1123

Address: 1100 E. Warrenville Road, Naperville IL 60563