Rose care - Knowledgebase Question

Casa Grande, Ar
Question by dmflvsjesus
March 24, 2009
I need to know how often I should water my Roses, where they should be placed (i.e. full sun?), what else I need to know that will help me to keep them alive.

Answer from NGA
March 24, 2009


Roses can take the heat; it's intense sunlight that stresses them most. In the Southwest many roses do best with some afternoon shade in summer, but hosing down your plants at least two to three times a week is the next best thing. The spray cools the foliage, increases humidity around the plants and helps control mites and aphids.

Use plenty of mulch. Mulching is essential for keeping roots cool, controlling weeds and conserving moisture in arid soils. Maintain a four-inch layer year-round. Compost, ground western cedar, pine needles and hay all work well. As mulch decays, it enriches the soil and improves drainage?both real problems in the Southwest?without any hard labor on your part.

Feed your roses. Roses don't just like to eat, they like to eat well. Though they can live without fertilizer even in nutrient-poor soil, regular feeding gives them glossy foliage and richly colored, beautifully textured blooms. Many rose experts recommend time-release fertilizers. Keep in mind that these formulas break down more quickly as temperatures rise, so a three-month fertilizer may last just six weeks in the desert. Another option is a standard rose food. Apply it every four weeks through May. Then cut back to half strength, or stop fertilizing entirely until September to give plants a rest in the hottest months.

If, like many gardeners, you want to avoid synthetic fertilizers, try this all-natural blend, courtesy of Steve Schneider, an ARS consulting rosarian in Las Vegas: 1 cup bone meal, 1 cup cottonseed meal, 1/2 cup blood meal, 1/2 cup fish meal and 1/2 cup Epsom salts per plant. Scratch the mixture lightly into the soil around your roses, and, as with all dry fertilizers, water thoroughly before and after you apply it. Use it about twice a year?after winter pruning and before the fall bloom.

Be sure to keep your roses well hydrated by watering at least three times a week during the hottest months, using a minimum of three to four gallons per plant each time.

Growing roses in the Southwest requires patience. At the height of summer, your roses may not bloom at all and when they do, the flowers are apt to be disappointing?small and pale with crispy leaves. Horticulturally, summer is the desert's winter, a period of near-dormancy in which your only goal is to keep plants alive. But with the first cool days of late fall, Southwest roses put forth an astonishing, making-up-for-lost-time display.


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