University of Illinois Extension connects people and their local horticulture and environmental concerns with the tools they need to pursue meaningful change. Whether it’s landscape aesthetics, sustainable practices, food production, pollinators, or a myriad of other topics, Illinois Extension has the resources people need.

The Illinois Extension state horticulture team produces gardening websites, seasonal webinars and a YouTube channel to make horticultural information easily accessible to everyone.


From educational curriculum units to websites devoted to deeply exploring a single topic area, our resource collection represents best practices based on both proven and emerging research and the work of our professional education staff.
Gardening  -  Fruits and Vegetables  -  Flowers  -  Insects and Diseases  -  Composting  -  Landscaping

Ask the Master Gardeners

Master Gardeners and Extension horticulture staff are ready to "Help Others Learn to Grow."  Get your gardening questions answered from University of Illinois Extension Master Gardeners!

Fill out this Ask the Master Gardener form to get your gardening questions answered.

Or call 217-300-9390

Fill out this Master Gardener Speaker Request form
University of Illinois Extension provides speakers on a wide range of gardening topics through our Master Gardener program. If you would like to request a program for your organization, please complete this form indicating your program preferences. All groups requesting talks should have a minimum audience of 12 people. Requests need to be made at least 6 weeks in advance in order to coordinate our volunteer' schedules.

Fill out this form to Suggest a Master Gardener Project

For other questions: Email:

Four Seasons Gardening


The Four Seasons Gardening Webinar Series is one of the most popular horticulture programs offered by the Illinois Extension Horticulture Team. Each season, the team hosts three live one-hour webinars delivered via Zoom. Webinars are free but registration is required and space is limited. Please click on the topics below to register.

Webinars are held on select Tuesdays at 1:30 p.m. CDT.

Upcoming Programs

Themed Gardens: Design with Kids in Mind | July 20

Foster the love of gardening with the youth in your life by creating theme gardens. Explore ideas and tips for creating a special place for your young, hands-on learner to grow, explore, and be creative. Whether it’s at a school, community garden, or your backyard, theme gardens use plants and design elements inspired by a specific topic, such as favorite books, colors, foods, animals, or even places to visit. The possibilities are endless! 

Presenter: Horticulture Educator Brittnay Haag

If you need live captioning support to participate in this program, please contact Nancy Kreith at It is strongly encouraged to submit your request at least two weeks before the program begins.

End of Summer Planted Fall Vegetables | August 17

Fall harvested vegetables tend to be sweeter as they finish growing as the temperatures are cooling and fall approaches. Join University of Illinois Extension Horticulture Educator Bruce J. Black as he shares some tips for planting fall vegetables, which vegetables are better suited for a late summer planting, and some information about how to store fall harvested vegetables for their longest shelf or storage life.

Presenter: Horticulture Educator Bruce J. Black

If you need live captioning support to participate in this program, please contact Andrew Holsinger, at It is strongly encouraged to submit your request at least two weeks before the program begins. 

Webinar Archives

Each program is recorded and uploaded to Illinois Extension Horticulture YouTube channel. To allow time for closed captioning edits, please check the YouTube channel about two weeks after the scheduled program.