How to over winter hydrangeas – do not know type maybe \\
Do not know how much of plant to cut back, cover with leaves etc.
Certified GKH Gardening Expert
That will be a bit of a problem. Knowing the type is the most important factor in deciding when to prune a hydrangea.
This article may help you to identify your type and how to prune it: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/prune-hydrangea-bushes-hydrangea-pruning-instructions.htm