It would be best if you get them in the ground soon to get the roots growing. Healthy roots will help your Vanilla Strawberry Hydrangeas get through the winter. When planting, pack in the dirt around the roots so there are no air pockets. Water well and mulch. Again, going into winter, water well. And, mulch heavily around the base. Are you familiar with rose cones? You can always use them to protect the top of the shrubs. Or, make a cage with wire fence and pack it with leaves. Keep an eye out for rodents as they may also think this is a great winter home and munch on the canes of the hydrangeas.
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