Site. Roses crave sun, at least six hours a day is ideal.
Soil. Plant roses in rich, well-draining soil. When planting, mix organic matter, such as compost or ground bark, into excavated soil you'll use to backfill the planting hole.
Mulch. Add a 2-3-inch layer of coarse, organic mulch around roses. Coarse mulch helps reduce foliage diseases on roses because it reduces the amount of water splashing onto leaves (splashing water drops can spread fungal diseases).
Water. Irrigate roses deeply but infrequently, applying water directly to soil using soaker hoses or drip irrigation. Water needs vary based on weather and soil, so check soil with your finger. Water often enough to create consistently moist soil – not overly wet, not bone-dry. To prevent diseases, keep foliage dry, especially if you must water late in the day.
Inspect. Check roses frequently for insects or disease outbreaks. Catching problems early makes them easier to treat.