Before wintering, the bush is cut off completely, as belonging to the III pruning group. Clematis 'Red Cardinal' has 4-6 inch, ... Clematis 'Red Cardinal' ('Rouge Cardinal') Common Name: Clematis. Pine branches are laid on top. A and C group clematis do very well here.This clematis is now 3 years old and gives a wonderful display. The Cardinal Rouge variety (lat.Cardinal Rouge) is a large-flowered variety. It is planted against a lattice that is exposed on both sides. Rouge Cardinal Clematis is a multi-stemmed deciduous woody vine with a twining and trailing habit of growth. The remaining shoots of the vine after hilling the ground fall asleep dry leaves. For clematis Rouge Cardinal, the trim group is suitable for the third. I am in Zone 3B in Western Canada. Negative: On Jun 12, 2005, teatimer from Lavrica, Slovenia (Zone 7a) wrote: If there is a shortage of organic shelter, flower or agrofibre cover the flower. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition. With good care, clematis blooms profusely and for a long time - from mid-summer to early autumn. On the clematis video "Rouge Cardinal" and "Justa": Diseases and pests Botanical Name: Clematis 'Rouge Cardinal' Form: Vine Sun Exposure: Full Sun, Partial Shade Height/Habit: 6 - 10 feet Spread: 36 - 48 inches Spacing: 4 - 6 feet Hardiness Zone: 4-8 Flowering Date: Blooms from early summer to early fall Planting Instructions: GREEN group vining clematis (potted, dormant or bareroot) should be planted 2-4" deeper than the current crown.