Phyllis and Jim wrote:

Joe,

I followed your link. That IS what I call water celery. Hal and
Marco, take a look and see if it is what you are thinking of. The
link also describes its hardiness to zone 8.

As best I can tell, that's what is thriving in my zone 5 pond in N.
Central Indiana. It's been through 2 winters now with no problem.


Roger Grady
To reply by email, remove "qlfit." from address