On Thu, 17 Jan 2008 10:51:57 CST, Kurt
wrote:

Interesting that it's also a plant that dies out in the colder climes.

Yes, it is not generally a problem in an area that has a freeze, but
the warmer (Most Southern.) edge of Zone 8 in South Georgia can
support them over winter, and Zone 9 and above they can grow rampant.
We had a member of our club that planted some in the mud of her mom's
farm pond, so she could drive down and gather some every spring.
--
Hal Middle Georgia, Zone 8
http://tinyurl.com/2fxzcb