Under normal circumstances, your hydrangea should have returned back from its deep slumber without winter damage. To make sure that all is well, try these suggestions:
* hydrangeas are dormant during winter but they will need a constant supply of water at reduced levels because the roots are still growing so make sure to supply water during dry winters while the ground does not freeze. Otherwise the stems could die for lack of water and since they are dormant, you would not notice until they start to leaf out from the crown.
Good luck this winter,
Luis, I have two mophead and one lacecap Hydrangas. They are 10-15 years old. The mopheads flower pretty good but the lacecap had one flower this year and only a few last year.
The plant is quite large and looks healthy. I believe they flower on old wood.
If our freezing winters aren't killing the old canes I wonder if it is lack of water?
So you say to water if the ground isn't frozen?
It is frozen for most of the winter. So what should I do?
I think the huge slippery elm tree in the next yard, only about 15 feet away, takes all of the water. It does all spring, summer and fall.