Master Gardeners

Extension has a vast collection of resources addressing horticultural interests across Illinois. We recognize that home and commercial horticulturalists have unique needs, so we've cultivated resources designed to address their top concerns. These collections represent the topic areas where we usually get the most questions, but our expertise covers everything from trees to tomatoes to tulips.

Have yard and gardening questions? Let us help.

The Master Gardener Help Desk is a community service that Master Gardener programs provide nationwide. Help Desks in our counties are now open! Master Gardeners are volunteers trained by University of Illinois Extension educators. They provide research-based answers to your home horticulture questions, such as:

  • Vegetable Gardening
  • Insect ID and Control
  • Trees & Small Fruits
  • Integrated Pest Management
  • Turfgrass Care
  • Flower Gardening
  • Plant Diseases
  • Tree & Shrub Care
  • Soils & Fertility
Boone County Help Desk Info

Hours: April-September | Monday-Thursday | 1-4 p.m.

DeKalb County Help Desk Info

Hours: Mid-April-Mid-October | Monday-Wednesday-Friday| 10 a.m.-noon


Ogle County Help Desk Info

Hours: April-September | One day a week (call the office)

Have a bee hotel? Donate it to science.


Bee hotels buzz with activity, but is it the right kind? A graduate student at University of Illinois is researching bees and needs help, in the form of donated used bee hotels, from the public to understand if these man-made nests are helping or harming bee populations in Illinois.



Good Growing podcast episodes

Listen to the podcast episodes about horticulture, ecology, and design with Horticulture Educators Christopher Enroth and Ken Johnson.