Color: Bicolor Flower Size: 6-8″ (15-20cm) Flowering Period: May June & Sept Mature Height: 6-9′ (2-3m) Pruning Group: B1 Planting Aspect: Sun/ Partial Shade USDA Zone: 4 Suitable For Container: Yes Foliage: Deciduous Price Group: 2 About Clematis Vancouver ™ Cotton Candy The namesake Cotton Candy is a perfect fit as the raspberry red flushed white tepals shine against a sunshine yellow stamen. 6-8″ (15-20cm) flowers mid spring and early fall. Mature height 6-9′ (2-3m). Pruning group B1.