The three rose diseases are blackspot, powdery mildew, and rust, all of which are types of fungus. Blackspot occurs during humid or rainy weather or where watering (especially overhead) is excessive. Powdery mildew prefers warm days and cool nights, crowded plantings or damp, shady areas. Rust develops on moist foliage. Proper rose culture, including plenty of sun, sufficient air circulation, proper watering, and sanitation (disposing of old leaves and other debris), will minimize all three disease problems, but they may still occur. If detected early and treated with a fungicide (organic or chemical), none of these will spread out of control.  You can easily grow roses and never have to treat them for any diseases with proper planting and care.

Most modern roses will bloom all summer if properly groomed. "Deadheading" refers to the process of removing old or spent flowers from the bush. Proper trimming ensures strong reblooming. By deadheading roses instead of allowing them to form seed hips, you're signaling the plant to produce more flowers. Rose leaves develop in sets of three, five, even seven or nine leaflets. Prune just above a set of five leaves for quickest reblooming.

Winter care should take place very late in the fall, after the ground becomes cold and may even start to freeze.  You don't want to trap the warmth in the soil.  Mound soil, compost, or leaves (from the trees, not from the roses), up to 15" to 17" high on the canes.  This will keep the soil uniformly cold in the winter and keep the rose dormant.

Spring care begins in late spring.  When the forsythias are in bloom, remove the mounded protection and prune the roses.  Pruning encourages growth and by doing this too early in the spring will leave the new growth susceptible to a late frost.  

This is a great time to plant roses.  Check out the great selection of beautiful, healthy roses at Pinehurst.