Mission "Promoting, Promoting and Preserving Greene County communities!" Promoting the community through beautification efforts to market and showcase local activities and events! Protecting the community through environmental stewardship programs geared at sustainable and organic farm living and water quality. Preserving the community through efforts aimed at buying local, preserving your natural heritage and culture and instilling value in our local agritourism. endeavors. Description The purpose of the Master Gardener program is to train citizens as horticultural-educated volunteers of The University of Tennessee Extension and the Tennessee State Cooperative Extension Program to work in partnership with their counties to expand the educational outreach by providing home gardeners with researched-based information.