The entire branch should be removed if it is badly diseased or dead. Three to five strong, healthy canes should be left. Next, any canes having weak growth or those growing toward the center of the plant should be removed. Any remaining canes should be cut 18 to 24 inches above the ground, depending upon the plant's vigor. Climbing Roses - Climbers, such as Paul Scarlet and Blaze, have variable blooming habits.
Many varieties produce blossoms in spring only.
During this flowering period, new canes develop for next season's flowers. Cut several old canes to ground level immediately after flowering. Many produce new canes on old canes, rather than from the base of the plant. In early spring, remove some older canes, leaving only five or six of the healthiest, most vigorous ones. This will keep the plant from becoming too thick or scraggly and will help produce more attractive blooms and plants.