Winter 2022 Green Thumb Winter Vegetable Series – Online

Classes are on Mondays from 6:00 pm to 8:00 pm; see descriptions below.

Click here to register!

January 10:
Seed Starting

If you are a new gardener, or just looking for some tips on starting seeds, this lecture will cover it. You will get an electronic copy of a handout on optimal soil temperatures for the germination of many crops.

January 24: Intro to Vegetable Garden Crops and Specialized Gardening Techniques

We will cover cultural techniques for growing various popular vegetables and will briefly discuss some specialized gardening techniques such as square foot, straw bale and lasagna gardening.

January 31: Vegetable Garden Planning and Organic Techniques

Organic and Small Farmer Outreach Specialist Claire Strader (Speaker Claire Strader) will get you ready for vegetable gardening with strategies and tips for advanced gardeners as well as well as newer gardeners. She will talk about timing of crops, spacing,  building productive soils, using cover crops, and more. You will leave with at least four electronic copies of handouts full of great  information.

February 7: Vegetable Diseases

Brian Hudelson, Director of the Plant Disease Diagnostics Clinic ( will speak about common diseases of vegetables and their management. You will get tips and strategies for preventing disease as well and digital copies of a number of fact sheets on various common vegetable diseases.

February 21: Composting Techniques for the Vegetable Garden

Composting is a great way to dispose of leftover crop material and turn it into valuable organic matter that you can use later to improve the structure, water-holding capacity and nutrient content of your soil. Basic composting theory, troubleshooting and several methods of composting will be covered.

February 28: Cover Crops

Cover crops bring extra nutrients to the soil and help control weeds. Some also attract pollinators, which can help increase your crop yield. Organic and Small Farmer Outreach Specialist Claire Strader will talk about different types of cover crops to use in different situations, as well as when to plant and remove them.

March 7: Weed Management in Vegetable Gardens

Learn how to identify various common weeds in the vegetable garden and use their life cycles and other techniques to manage them. Cultural techniques will be stressed, but organic and traditional chemical control products will be briefly discussed as well. (Speaker Lisa Johnson)

March 14: Vegetable Insects

Dr. Russ Groves of UW-Madison Wisconsin Vegetable Crop Entomology ( will review the life cycles common insect pests of a variety of crops and give you techniques to combat them in the garden. You will receive a number of electronic fact sheets on insects covered during the talk.

March 21: Seed Saving and Harvesting/Storage

Learn how to successfully harvest and store seeds from a variety of crops. Success is more likely with some crops, and less likely with others. Learn which crops are easiest and most reliable for getting the results you want. We will also cover proper storage of seeds and seed viability testing. (Speaker Lisa Johnson)

Click here to register!

You can register for classes as a package for a slight discount, or choose selected classes for a slightly higher cost. In cases of financial need, a limited number of scholarships are available. Contact Lisa Johnson at for more information.