Overwintering water lilies

I have a lilly in my pond and it seems to be dying off does it die or need to be cut back to over winter ?

i bought it this summer and had a couple of flowers and and has quite a few leaves but they are slowly dying off.will it completely die off for winter or do i need to cut it back .if any one has any advice on how to over winter it would be much appreciated

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• Answer:
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  If you live where the night temperatures are starting to drop below 55º, your lilies are going dormant. They will soon do that in warmer climes. Here's an article I wrote about water lily care. It should answer all your questions.
• http://www.pondlady.com/Articles/Water_L…

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