HEALTHY ROSE - Knowledgebase Question

Question by tanasavant
February 25, 2009
How can I keep my climbing rose healthy? When to feed it? How often? and what is a good fertilizer? every info to keep it healthy.

Answer from NGA
February 25, 2009


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 don't prune in the 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 flower freely, roses require full sun. Roses are heavy feeders. Nitrogen, phosphorus, and potassium are the three major nutrients for all plants. (They correspond to the three numbers on fertilizer packages.) Nitrogen promotes growth of green leaves. 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 with 2 to 3 inches of compost to help maintain soil moisture. Hope this information helps!

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