1. University of Wisconsin-Green Bay Natural and Applied Sciences Heirloom Plant Sale: Offers 59 varieties of tomatoes and 41 varieties of peppers as well as vegetables, herbs, greens, melons, squash, sunflowers, zinnias, marigolds and some native pollinator-friendly plants. View the full list of 202 plants and descriptions at uwgb.edu/heirloom-plant-sale. Due to COVID-19, plants are ordered online and then picked up during scheduled times May 13-15. Payment will be at time of pickup; cash or check only. Masks will be required during pickup.Any plants that haven’t been pre-ordered will be sold at a sale from 9 a.m. to 3 p.m. May 15 outside the Laboratory Sciences greenhouse.