Ferns grow like weeds here. I cut them down to the ground and often try to pull up some roots to thin then out with little success. But they always, always come back usually bigger and better than before. My Boston and Fishtail Ferns are in pots and protecte in the winter. During those especially hard winters, I have cut them back completely and they come back. However, being in a pot, that just means the root systems get stronger and they will eventually need repotting. 4 of my Boston Ferns are in desperate need of repotting and the 4 Fishtail Ferns are close behind. And I am in desperate need of some time off! However, I don't need 8 pots of newly potted ferns and finding larger hanging pots is hard to find. So until I find a solution, the ferns will stay right where they are.