Sorry, I never got back to you sooner, been busy with "life".....Dear Shoestring, I don't have Cat-tails, I have a Bull Rush, much different. I also have a Wool Grass Bull Rush, (this is a grass, not a rush) Cat-tails have long tall FLAT skinny pointed leaves, Rushs are long tall ROUND pointed spikes for leaves with funny seed heads on top.
I don't cut nothing down till spring, then the energy from the tops will return to the bulbs and the tops will crinkle under the snow and add extra winter protection. I do this with the yellow flag Iris as well. Our winters can be very harsh, so any extra natural winter protection is welcome.
Glad you like my Halloween stuff, got to have some excitement, with everything dead and dying in fall. Halloween can be enjoyed by all, never to old to have fun!