I am just now getting interested in growing and maintaining my wife's roses. I have veggie gardened for several years, but not much interest in 'roses'. I bought my wife a Tropicana hybrid tea in a 2 gallon pot. I dug the hole twice as large as the pot and placed it in the hole, filled with potting soil and watered with Miracle Grow. I noticed that the bushes that are older than 2010 ( moved here then) have black spot on the leaves. One is some sort of small red rose with long shoots that probably need to be tied to a trellis. The other bush puts out a large red rose. (Mr. Lincoln ??) They are in the shade of a large red bud tree. I know they need full sun. How do I get rid of the black spot? I have fluffed the soil and added fertilizer. Weeded the bed, and pruned a few branches, but I'm sure I don't know what I'm doing.