Clematis Websites

Provides a searchable database of Clematis varieties including characteristics, growing requirements and care instructions.

Information for growing clematis from the Purdue University.

Searchable database from the University of Hull; many entries include photographs.

Lists books, articles and information on clematis by Dr. Howells and also provides links to the publishers.

Describes the different varieties of cultivars and explains how to propagate, plant, prune, and care for them. Includes photos.

Provides instructions for planting, pruning, and controlling diseases and pests. Includes a list of varieties with links to photos and basic facts.

Members discuss cultivation of clematis, exchange plants and seeds, and share photos.

Notes on germinating seeds, raising seedlings, flowers; links.

Norwegian enthusiast presents information on the different forms and a photo gallery. More detailed information on the Norwegian version.

Notes on growing clematis seeds from the International Clematis Society.

Information on pruning the different clematis groups.

Collection housed in a garden and greenhouse in Oregon, US, embracing both species and cultivars. General information, history and mission.