Depending on the time of year, your plants may be completely dormant, fully green or cut back. We must give them a full winter dormancy for their health and to assure flowering of some varieties. We must also trim back heavy growth in the spring and summer for good air circulation in the canopy. Clematis and Other Vines are grown in Quart Pots. See Actual Plants .
Every garden is unique.
These are only guidelines, however. You may find your garden can grow more or less than you expected. Clematis pruning is not that complicated. Some varieties benefit from regular pruning and will flower better after pruning. Other simply outgrow a small space if not kept in check.