Just let it go. The roots will grow down and the shoots will grow up -- that might mean they wrap around the rhizome a bit, but they'll go the right direction.

The hedychiums do need a certain soil temp before they come out of dormancy. I don't remember what it is, though. So long as the rhizome isn't rotting, it'll be fine.

Dave

In Oregon I think giving this bottom heat would certainly help. If you can heat it to 75/80F you ought to see some new growth alot faster.