winter covering of hydrangea
I have approximately 30 hydrangea in my new yard. The count includes different varieties. In the past, the previous owner of the property kept them warm through the Michigan winter w/ barrels & mulch. Which provided amazing blooms. We have had an early frost followed by several days of low 20 degree weather and I am concerned that we could go to great lengths to protect them when the moment has already passed. Can anyone tell me if barreling them will be productive still or if I should put my energies elsewhere? Thanks so much!!