How do I winter Hydrangeas in Southern Ontario in the garden?

Hydrangeas bloom on " second year growth " so you dont want to cut them back. That is, the flowers will only bloom on stems that grew and didn't flower the year before. They may seem dead after the first frost, but you shouldn't cut them if you want flowers next spring. Let the plant take it's natural course...in the spring you will see new buds on the canes. If they do not bud and turn brown and brittle, you can remove them by cutting them at the base. Also, to turn the hydrangea flowers blue instead of pink, add a little Aluminum Sulfate to the soil in early spring..follow package directions. It is sold at any garden store or nursery.

How do I winter Hydrangeas in Southern Ontario in the garden?
After the first Freeze has blackend the tops, cut them down- %26amp; put a layer of Mulch (leaves work fine) over them until the Spring. Remove it in early April- %26amp; there you go! :)