The first year I planted roses they were spectacular. The two years following they got worse and worse, they received almost no fertilizer during those two years. After the awful year with them last year, I swore I would do better with them. So this year I fertilized with some 13-13-13, then later came back with some Alfalfa pellets, then finally when the black spot began to show I used some Bayer 3 in 1. The roses have responded very well, and this looks to be a great rose year.