Classic Climbers Provides instructions for planting, pruning, and controlling diseases and pests. Includes a list of varieties with links to photos and basic facts. http://www.classicclimbers.com/ Classicclimbers.com~Site InfoWhoisTrace RouteRBL Check
Brewster Rogerson, Clematis Connoisseur Article about a gardener tending the largest private collection of clematis west of the Rockies. Background of the collection, and list of published work. http://www.gardenweb.com/cyberplt/people/rogerson.html Gardenweb.com~Site InfoWhoisTrace RouteRBL Check
Clematis From Seed Detailed illustrated germination methods for clematis species, tips and tricks including hardening off seedlings, and germination records of dozens of species and varieties. http://www.bcollingwood.com/ Bcollingwood.com~Site InfoWhoisTrace RouteRBL Check
Clematis on the Top Norwegian enthusiast presents information on the different forms and a photo gallery. More detailed information on the Norwegian version. http://www.klematis.org Klematis.org~Site InfoWhoisTrace RouteRBL Check
American Bells Site dedicated to the horticultural appreciation of clematis species in the viorna group, native to North American. Pictures and details of each species, links to sources, and identification information. http://clematisviorna.info/ Clematisviorna.info~Site InfoWhoisTrace RouteRBL Check