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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. Pruning cuts are made at a.
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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). How to Prune Rose Bushes in the Fall eHow. May 24, Pruning will not keep a plant too large for its space the correct size. Pruning actually stimulates growth. Pruning and thinning shrubs reduces disease pressure (examples - Macrophoma and Volutella leaf spot of boxwood and black spot of roses) by.