Set out plants immediately upon receipt spacing widely to allow for ultimate growth and spread. A rich, loose, well-drained soil that has been enriched is ideal; soil should be porous to allow for free run of the roots.
The rule of thumb is that clematis prefer shade at the roots (this can be provided by low growing plants or a cooling mulch), and sun at the tops. For this reason they do well interplanted among trees and shrubs, through which they easily grow. When planting, set a stake next to the plant for support.
Water during periods of drought. Do not be discouraged if top growth is slow to appear; the roots must establish themselves before top growth occurs. For pruning purposes, Clematis can be divided into 3 groups. The first group blooms in the spring from buds set the previous season. Prune, when needed, after bloom. The second group blooms in early summer on short stems that come from buds set the previous season.
In March, remove dead wood and cut the remaining stems back to a pair of strong buds. The third group blooms on new growth. Therefore, prune all stems back to 12 inches from the ground each year in March. We also recommend a winter mulch. They also respond well to a topdressing of well aged manure or rich compost, preferably applied twice a year.