The principal public garden association in North America, home of the Public Garden Magazine.BGCI.org
Preeminent global organization on botanic gardens and conservation. Excellent information on gardens around the world.Conservation.org
Conservation International-one of the leading global agencies working to protect biodiversity.Sanbi.org
Working to conserve the remarkable biota of South Africa.ahsgardening.org
The American Horticultural Society, great information on gardening, plants and gardens.rhs.org.uk
The Royal Society based in the UK. Excellent information on plants, gardening and gardens.worldwildlife.org
World Wildlife Fund. Working to conserve biodiversity around the globe.esa.org
Ecological Society of America. Great information and publications for understanding ecological functions in nature.