Today I was thinking about how when cell cultures (human cell cultures, at least) grow for too long, they eventually decline and die because mitosis shortens the protective telomeres on the ends of the chromosomes to the point where the coding DNA becomes damaged and the cell cannot divide anymore. Would this happen to clone lines of Sarracenia as well? Or does this genus (and other plants adapted to reproduce vegetatively) have some sort of protection against that? What's the oldest clone of Sarracenia still currently being cultivated?