Sep 21, Sep 21, Prune away dead or dying growth on the rose bush. Cut out any canes that overlap or rub each other; cut back these portions of growth to where they join the main cane of the bush. When pruning other areas of the bush, make the cut (s) above any buds.
Do not remove the buds, as this will be be where new growth sprouts. Apr 08, Apr 08, You’re free to prune your knockout roses as soon as that last hard frost finishes thawing. We recommend cutting back about ½ – ⅓ of the total growth, which is usually between 12 and 18 inches. If you find that your rose bush is becoming too large and unruly, you can cut the entire bush down to about 1 – 2 feet high in the spring.
How to Prune Roses Step by Step. Use clean, sharp tools.
Start at the bottom of the bush and work up. Prune less in the beginning. You can always go back and cut away more unwanted growth. Most mistakes grow back just fine. Prune dead wood back to living plant tissue with an anvil pruner or lopper.
Keep in mind that USDA zone info for La Vergne is an average and our actual date of last frost changes from year to year. Half of the time in La Vergne we get surprised by a frost after April 15 so just be sure to be ready to protect your roses in the event of one of those late frosts. Feb 13, Feb 13, Prune to the height you want your rose bush to be, keeping a fairly consistent height throughout.
If it is in the back of a border, leave it a little higher; for the front of a border, trim lower. For hybrid teas in particular, the lower you prune, the bigger the flower and longer the stem - good for cutting and exhibiting.