Promotes the study, conservation, propagation and cultivation of cacti and other succulent plants. Features message board, news, schedule and local chapter contacts.
Information on membership, events, publications, and seed exchange, and for each of the plant groups an overview of cultivation information, species, and hybrids, with photo gallery.
The governing body for the promotion of dahlias in the UK, regulating shows, classification, and judging. Information about membership and events, as well as about dahlias and their cultivation.
Formed in 1873 to grow auriculas and gold-laced polyanthus, now with three independent sections covering the whole range of primula species and hybrids including such popular plants as primroses and polyanthus.
Society formed in 1976 in the UK to increase available knowledge about all aspects of Asclepiadaceae and increase the number of species in cultivation.
Information about herbs and society membership from worldwide organisation founded in 1927 as an educational charity dedicated to the dissemination of knowledge about the healing properties of herbs.
Organisation to promote and share the enjoyment of peonies as garden plants. Includes bibliography, lists of suppliers and gardens, and informational pages on the plants.
Formed for amateur and professional growers with an interest in growing geraniums and related plants. Information about membership, annual show, events, and contacts.
Founded in 1846, the society promotes the cultivation of the Chrysanthemum; its site offers information about society membership, forthcoming events, merchandise and publications, and a picture gallery.
An international society whose aims are to promote interest in the cultivation, breeding and improvement of the Gladiolus. Information on pests and diseases, shows and cultivation.