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Sarah Fellerer
Program Coordinator, Master Gardeners
University of Illinois Extension
535 South Randall Road
St. Charles, IL 60174-1591
Phone: 630-584-6166
FAX: 630-584-4610

Master Gardeners – Kendall County

Master Gardeners – Kendall County

Master Gardener Help Desk

Help Desk hours: M-W-F  9:00 am - 12:30 pm  March - October


Call or stop by, we are located at 7775B IL Route 47 in Yorkville.

Email a Kendall County Master Gardener at

The Kendall County Master Gardener Help Desk is open to answer your gardening questions during the growing season. The Help Desk is open mid-March - October, other times of the year we have on-call help available. Our volunteer Master Gardeners do the best they can to staff the help desk, there may be times when no one is available, please leave a message, we'll call you back.

Master Gardeners

The University of Illinois Extension Master Gardener Program in Kendall County is a volunteer program open to anyone with the desire and availability to share information with others about good landscape and gardening practices.

A primary objective of the Master Gardener Program is to develop and deliver educational programs, resources and events relating to horticulture to Kendall County residents.

Volunteers participate in extensive training sessions conducted by University of Illinois Extension specialists and educators in horticulture, insects, diseases, grasses, woody and herbaceous ornamentals, and fruits and vegetables. In exchange for this challenging educational experience, Master Gardeners are required to volunteer 60 hours, primarily between April and October to share their new knowledge with the community. Fellow Master Gardeners are a dedicated group, and many chose to return year after year to share their knowledge with others.

Collecting Plant Samples

Bring in or email ( photos of the plant. Be sure to include the surrounding environment.

If possible bring in the entire plant if appropriate, especially if it is a vegetable, annual or perennial flower.

Woody plant samples should be as large as practical. Collect samples from areas that are still alive and showing symptoms.

Do not collect dead plants. Often their tissues have been invaded by other fungi and bacteria and the original pathogen is no longer detectable.

Collect several plant specimens showing a range of symptoms. Collect both healthy and damaged plant parts.

Provide as much background and related information as possible. Make note of flooding, shade, environmental changes, pesticides used and fertilizer history. Watch for any observable patterns or uniformity.

It may be necessary to wait until the plant blooms for a botanical identification.

After collecting samples, do not expose them to direct sunlight. Keep them cool and do not allow them to dry out. Weeds tend to wilt quickly, consider placing them between two pieces of moist paper towel and bring them in as soon as possible.