Climbing roses covering a support structure in a sunny landscape bring pride and joy to many rose gardeners. After all the effort of training the roses and pruning them for optimal health and appearance, do not neglect to fertilize your climbing roses at the proper times during the growing season. Because roses require adequate fertilizer spaced at the proper times, a gardener must stay attentive to the needs of the climbing roses and feed them to keep them healthy. Feed climbing roses once in the early spring and a second time after the initial bloom.
Water the climbing roses first to fully saturate the soil before you fertilize. Watering the roses first will prevent fertilizer burn to the roots of the climbing roses.
Mix the fertilizer with water according to package recommendations for the size of the climbing rose garden.
Pour the fertilizer slowly onto the soil near the base stem of the climbing roses. As you pour, do not allow the fertilizer to splash onto the canes, the foliage or the blossoms because the fertilizer would burn this sensitive growth.