Answer: Roses are beautiful additions to any garden, but they are also high-maintenance plants. I think the time spent caring for roses is worth the trouble, though. What you describe sounds like a fungal disease (botrytis). To stop the spread, cut off and destroy all infected blossoms as soon as they droop or die. If this doesn't control the problem, you may have to resort to spraying a fungicide such as Daconil multi-purpose fungicide or Rose and Ornamental Fungicide. Follow label directions for best results.
Most roses are planted bare-root in the winter months but sometimes you can find roses growing in containers in your local garden center. If so, you can plant them this spring.
Enjoy your garden!
Q&A Library Searching Tips