Colorado Native Plant Society
- purpose: dedicated to furthering the knowledge, appreciation and conservation of native plants and habitats of Colorado through education, stewardship and advocacy
- more info: Charity Navigator
Grow Native Massachusetts
- purpose: to inspire people to action across the Commonwealth, on behalf of native plants AND the diversity of life they support
- more info: Charity Navigator
Grassroots Ecology
- purpose: to engage and educate the public to restore local ecosystems
- more info: Charity Navigator
Sugar Pine Foundation
- purpose: dedicated to restoring sugar pines and other white pines in the Lake Tahoe region and beyond
- more info: 1% for the Planet, Charity Navigator, Sierra Sun, Reno Gazette Journal
California Native Plant Society
- purpose: to protect California’s native plants and their natural habitats, today and into the future, through science, education, stewardship, gardening, and advocacy
- more info: Charity Navigator, Wikipedia
Lady Bird Johnson Wildflower Center
- purpose: inspiring the conservation of native plants
- more info: Botanic Gardens Conservation International, Wikipedia
Harvard Forest
- purpose: to advance understanding of biological, physical, and human systems in the New England landscape
- more info: LTER Network, Wikipedia, Charity Navigator
Adkins Arboretum
- purpose: provides exceptional experiences in nature to promote environmental stewardship
- more info: Charity Navigator, Wikipedia
The Dawes Arboretum
- purpose: dedicated to enriching lives through the conservation of trees, nature and history
- more info: American Public Gardens Association, ArbNet, Botanic Gardens Conservation International
Meadowview Biological Research Station
- purpose: to preserve and restore pitcher plants bogs, and associated ecosystems in Maryland and Virginia utilizing a unique five step process of discovery, propagation, research, reintroduction, and education
- more info: Charity Navigator, Wikipedia