Question on overwintering pond plants
(My question is very similar to molly229's.)
We have a small pond - basically a small tub buried in the ground. It is about 4' in diameter, and about 30" deep.
We are in zone 4a (SE Minnesota).
I don't know the proper way to overwinter the plants we have. Here is what we have:
Some type of water lily hardy to zone 4 - I've forgotten the name.
I would like to know the best way to keep these plants over the winter. I do have an outdoor-rated water tank heater. We have a garage, but it is unheated and gets down to about the same temp as the outdoor air in the winter. Our basement is finished, so it is room temperature in the winter, and because it is finished, we don't have a place to have tanks of water and/or mud.
Thanks in advance.