Royal Velours is a vigorous, free-flowering, deciduous vine that produces striking red-crimson flowers from May through October. It is a member of the viticella group of clematis, and as such it shows good resistance to clematis wilt. To prune, simply cut back the stems to a pair of strong buds 6 to 8 inches above ground level before growth begins in early spring. It can be trained to climb into shrubs, trees, and climbing roses as the clematis growth is removed each spring and can grow to 10 – 15 feet tall.