Answer: It is not normal for all of the leaves to drop off newly transplanted hydrangeas (the stress of transplanting can cause a few leaves to drop and others to turn yellow, but it is not normal for the entire plant to lose all of its leaves). Your garden may have experienced a frost, which can cause a sudden loss of foliage, or you may not be watering enough (or too much). Try deeply soaking the plants once each week until fall rains take over for you. In the spring, the plants should leaf out and look healthy. You can remove the spent blossoms if you wish, but don't do any other pruning until next spring. Best wishes with your new hydrangeas!
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