Some of my indoor Drosera have a build up at the top and mostly edges of the pots.
The peat turns black & hard. That is all. :P I don't know why, or if it affects the plants, but I just don't understand what the build up is.
It is only happening with the new pots I got, and with some of the other tall black pots. When i top water it, it seems to loosen up.
Anyway, does this happen to anyone else? Does it effect your plants?