I have a question about growing cephalotus. I have grown the cephalotus for two years now and I have a mature plant that has formed a mound and a carpet of pitchers. I noticed that some of the growing points in the center of the mound are dried-up and dead. Instead, the rhizome is shooting out pitchers at the bottom. These pitchers are growing along the soil line and expanding the radius of the plant. This is normal growth? Do growing points dry up and die after a while? Am I treating this plant poorly hence this result?