From showing kids how to grow vegetables to teaching homeowners about composting, Extension's Master Gardeners have served thousands of Minnesotans every year since the program began in 1977. Master Gardeners are volunteers trained by Extension professionals to share their knowledge in their communities. In 2007, 1,550 Master Gardeners across Minnesota contributed nearly $2.1 million in volunteer service. The combined 106,549 hours they worked equaled more than 51 full-time staff positions. The program has expanded from its early days of answering home gardener questions. Today's Master Gardeners help build rain gardens, combat invasive species in lakes, involve kids in plant science programs, work with organizations like Habitat for Humanity, and much more.