National Tree Trust
A catalyst for local volunteer and community service groups in growing, planting, and maintaining trees in rural communities, urban areas, and along the nation's highways. Mobilizes volunteer groups, promotes public awareness, provides educational and tree planting grants, and unites civic and corporate institutions in support of public land tree plantings.
The Pennsylvania Horticultural Society's Tree Tenders
Established in 1993, Tree Tenders starts with a basic training course designed to teach general tree-care skills to organized community groups and individuals in Philadelphia.
