Jan 17, In the fall, take off about ⅓ of each branch that you cut so your rose bush can grow healthy and tall in the spring. You can cut your rose bush down even more if you’d like to change its shape or height.
Make sure to leave at least 6 inches (15 cm) of branches above the ground so that your rose bush can grow back%(4).
Remove an old garden rose bush's old, unproductive stems, and reduce the bush's overall height by one-third. Make each pruning cut 1/4 inch above the next bud on a stem. The bright-red rose hips may be left on the plants for fall color. Sep 21, Pruning roses in the fall should be done lightly and only as necessary to help them see their way through the winter disease-free and without damage.
In warm and temperate climates, fall pruning is minimal. For better light and air circulation, try to prune the rose bush such that the center of the plant is opened. Cut the stem at a degree angle, which should be about ¼th inch above a bud, facing the outer side of the plant. Make the cut clean, and not ragged. Remove any weak or Estimated Reading Time: 6 mins. Feb 13, WHEN TO PRUNE ROSES. The best time to prune roses is in late winter or early spring, around the time new growth begins. This could be as early as January or as late as May, depending on your climate.
If you'd like to mark your calendar, or set yourself a pruning reminder, here are regional estimates: Zones 3 and 4 - May; Zones 5, 6 and 7.