I just wanted to ask if this is a particularly difficult species to grow when it gets older? I have several plant sof this species, and they have all flowered well this year. The biggest, which had 5 heads appears to have rotted, literally within the last 7 days, which is when I watered all of my plants. The othe rcarrettii are fine, but this one decided it's time was up. The soil wasalmost dry when I tipped it out, my usual mixture which drains well, so I'm a bit confused.
Very annoying as it was a very nice plant.