Clematis - Container Nursery
Provides a searchable database of Clematis varieties including characteristics, growing requirements and care instructions.
Clematis is a Popular Garden Climber
Information for growing clematis from the Purdue University.
GardenWeb: Clematis Forum
Members discuss cultivation of clematis, exchange plants and seeds, and share photos.
Growing Clematis in the UK
Describes the different varieties of cultivars and explains how to propagate, plant, prune, and care for them. Includes photos.
Home of Clematis
Information on growing beautiful clematis that will bloom year after year
Howells on Clematis
Lists books, articles and information on clematis by Dr. Howells and also provides links to the publishers.