Pink Sedum Flowers Turn Black

Q: Hi, I have Pink Sedum and it bloomed well 3 years ago to get nice pink flowers. But I noticed that 2 years and now this year, the flowers turn black as soon as they start getting a hint pf pink. Any idea? The plant, leaves otherwise looks very healthy.

A: Overhead watering may be a problem. Water collects in nooks and crannies causing rot. Over-fertilizing might also be an issue. Too rich of soil or soil that holds too much moisture. Sedum needs fast draining soil. Lack of sun may cause it. Best And Happy Yardening, Nancy