 Lowman co-founded the TREE Foundation, along with Sarasota non-profit accountant Mike Pender and community leader, Bob Richardson.She still serves as its
Executive Director, and the Foundation supports Tree Research, Exploration, and Education (hence, TREE).The Foundation has supported scholarships for students from developing countries to learn about forest conservation in the U.S., built the Myakka River canopy walkway (America's first public treetop walk), conserved valuable forest fragments in Ethiopia with a unique science-religion partnership, and continuously promotes education of youth about forest conservation.