My little bog seems to be doing OK, in fact it's been great, but the center plant is a S. purpurea venosa that can't seem to make new leaves that last.
The new leaves are coming out pinkish--as if there were no chlorophyll in them. They are smaller than the originals and don't seem to last very long. They do, however, make complete pitchers.
Too much light, maybe? The plant is in the center of a very large pot (equal parts LFS, peat and perlite) that has a J Finn, a S. Rubra, a S. wrigleyana, a Green Dragon, a tiny bit of live sphagnum and three N. American sundews. All are doing just great except for this purpurea.
They are outside--get loads of sunlight, and lots of rainwater. I water them during dry spells with distilled.