Wow Bill, I haven't seen cattails grow in water deeper than about 2 feet, but that is rare.
CJ, cattails area pain in the you know what in N.E. Texas.
Our water levels go up and down dependent upon severity of Texas hot summert time droughts.
During one of our severest droughts, the cattails followed as the waater receded, and when the water raised the cattails survived in water up to 4 ft deep.
We had to bring a track hoe to clean them out.
I have found they do best in sandy soil but not a problem in clay.
I hate them.
