Celebrate the start of the gardening season! The 44th Annual Gardeners' Gathering brings Boston-area gardeners together for a free day full of informative workshops, engaging exhibitors, networking, and inspiration. Held at Northeastern University, the Gathering features more than two dozen workshops on everything from Healthy Soil to Urban Foraging. Urban homesteaders can learn about keeping bees or chickens, making fermented pickles, and growing gourmet mushrooms. Gardeners can hone their skills with workshops on garden planning, managing pests and diseases, and more.