I used the same problem with the cat tails in the middle of my pond, I used
a 20 gal "tree" pot, filled it halfway with rock, set the potted cat tail in
the pot and filled the rest with rock...had a couple of pretty good wind
storms since, no more falling over.

"Heritage58" wrote in message
...
How do I keep a 6 foot tall (and spreading) plant upright? Aside from ties
(like the technicians working in Pisa) what are the alternatives? The pond
is
4' deep. Regards, Tony