In all my years of growing CP I've never experienced this. Most of my Sundews, Butterworts, and Flytraps have turned black and died. Actually, the Flytraps have died back to the bulb. They aren't dead. What is so startling about this phenomenon is that the all of these plants were growing scattered about in separate pots. The other plants in the pots (Sarracenia mostly) have not shown any signs of this. I have absolutely no idea what this is. Anyone experience something similar?