rose pruning - Knowledgebase Question

Mukwonago, Wi
Question by CABratberg
June 7, 2010
Have a climbing rose, old one started from a cutting.Does it bloom on the last years stems. Itisgrowing great.and in winter,what do you do with thelongstems. it from an over 100 yr. old rose of my moms. in Pa. we live in zone 4. JThanks , carol


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Answer from NGA
June 7, 2010

0

Climbing roses bloom on new stems that grow on old wood. Pruning them back in late winter or early spring will encourage new flowering stems. If you didn't prune this past spring, most of the new growth will be at the ends of the main canes instead of all along new lateral stems, which produce the most flowers. To give them a boost, you may want to apply a fertilizer formulated especially for roses. Roses also benefit from applications of greensand, which contains potassium. Just be sure to avoid feeding them with a high-nitrogen fertilizer, which will encourage foliage growth at the expense of flowers. In general, horizontal canes produce more flowers than vertical canes, so you might try encouraging young canes to grow horizontally by gently tying them to the trellis. Also, keep the plants consistently moist and mulch over the top of the soil with 2 to 3 inches of compost to help maintain soil moisture.

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