• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Clematis aromaticaRegistration

Download registration forms here:

Application form to register a Clematis cultivar name (pdf)

Application form to register a Clematis cultivar name (doc)


Publications

The RHS publishes The International Clematis Register and Checklist 2002 and subsequent supplements, some of which are available as downloads from the link below.

Clematis registers

Further information

Evison, R. 1985. May Large-flowered Clematis cultivars. The Garden 110(5): 207-213.

Fretwell, B. 1989. Clematis. Deer Park, Wisconsin: Capability's Books.

Lloyd, C. 1989. Clematis. Deer Park, Wisconsin: Capability's Books.

Rogerson, B. 1985. Clematis viticella and its progeny. Pacific Horticulture 46(1): 40-44.

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