It's a perenial. Maybe you have it in the wrong situation. They like dappled shade and moist soil.

If it is in the position Hywel has described, I wouldn't be too worried about it. As soon as the weather warms up, it will spring into new growth. If you need to move it, treat it very gently as the roots are very brittle

The ones in my garden are all safely tucked away under the soil and will not show any signs of lige until March or even April.

Yes - I was a bit surprised to hear that you can see it - are you sure it is D. spectabilis?

a couple of mine are poking their noses through. this is the time they did last year but I hope the cold doesnt nip them too much. [another 1/2" of snow today :o(]

OK - I must take a look tomorrow! It would be lovely to see them. :-))