Ferns in garden pond
I am turning a bog into a small shady pond. I plan to try ferns in pots in the pond...Royal fern, mostly. Should I take it out before winter and let it sit dryer? I have one in a pot that did fine sitting on the patio all winter. I will keep a pond heater, so the pond won't have a chance to freeze, not that its likely anyway in our climate (famous last words.) I read Beth Chatto's book and she said bog's are difficult because they freeze in winter and many plants can't survive that. My bog was a flop, so I'm doing a proper pond.