American Horticultural Society
AHS Youth Gardening initiative considering the “children’s garden”, one of the strongest trends in gardening. Acknowledges gardening as an inter-generational environment that can help develop social skills, enhance school’s curricula, bring families together, and emphasize the link between nature and food, clothing, shelter, etc.
American Rose Society
Education & promotion of the rose in all its diversity.
American Seed Trade Association
Horticultural & agricultural promotion & information related to seeds.
An online destination that promotes health, a greener world and a vibrate community that creates and educates gardeners around the world.
International Herb Association
International organization devoted to herb promotion, education & networking.
International Plant Propagators’ Society
Promotes seeking & sharing information about the art & science of plant propagation.
Part of the Rodale Institute’s YouthEducational Program dedicated to empowering children to make healthy choices for the environment and for themselves.
National Garden Bureau
Accurate information about gardening from seed & advice for purchasing the best flower & vegetable bedding plants or pre-planted containers.
OFA - An Association of Horticulture Professionals
Association of floriculture professionals supporting and promoting floriculture through education, publications, partnerships & events.
Perennial Plant Association
Trade association dedicated to education, production, promotion & utilization of perennial plants.
Ohio State University Horticulture and CropScience digital collections. Information from every land-grant university in the U.S. and several government institutions in Canada. Plant Dictionary: Searchable database for images of plants, turf, plant diseases & insects.
Royal New Zealand Institute of Horticulture
Promotes understanding, appreciation, conservation & use of plants.
Victoria Flower Program
One of the best sites in the U.S. for wildflower information.