Thought this one was impossible to kill! As someone else says, it
sometimes gets aphids in the crown. You can't overwater it. Too much
heat and draughts can dry out the leaves since they aren't held near
the soil as in some other species.
Transplanting might be useful - I seem to find that fresh medium
gives some plants a new lease of life, and the old medium has
sometimes gone smelly (don't know if the plant minds this though!).
-- Clarke Brunt (clarke@brunt.demon.co.uk)