Garden Organic
An organic organisation. Includes details of their organic display gardens, publications, events, local groups and other news.

Plantlife
Dedicated to preserving endangered plantlife. Includes details of threatened species and habitats, Plantlife reserves, and campaigns.

Royal Horticultural Society
A gardening charity. Includes details of flower shows and events, and advice on plants and other issues that affect the garden environment.

Soil Association
A charity devoted to promoting organic food and farming and raising awareness about the dangers of pesticides.