Answer: I think the foliage was shocked by the move from indoors to out. Dormant bare root plants are best planted in early spring while still dormant and covered with a mound of soil. Then the soil is removed gradually as they begin to leaf out.
If the plant leafs out before planting, it will be shocked by the sudden move outdoors. At this point keep the soil slightly moist like a wrung out sponge, mulch over the root area with an organic mulch, and hope for the best.
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