Margaret Purcell, Senior Horticulturist Clematis Basics Clematis is undoubtedly the most beautiful blooming perennial vine, often bearing hundreds of flowers for weeks at a time. Referred to as Queen of the Climbers, clematis comes in a wide range of colors, bloom times and bloom sizes. This genus includes approximately 250 species and numerous garden hybrids. It is a varied genus, made up of mostly woody, deciduous climbing plants, though a few are evergreen and a few herbaceous. There is great variety in flower form, color, bloom season, foliage effect and plant height.
Leaves are opposite on the stem and mostly compound with three to five leaflets.
The leaf stalk twines like a tendril and is responsible for giving the plant support. History Site Requirements Clematis have a reputation for being difficult to grow, however, like any other plant, if their needs can be met by the site and proper care, they will thrive. The site should be open enough to allow for air movement around the plants. Once the plant is well established, some basic care is needed on an annual basis. In dry seasons, watering deeply once a week is recommended.