Answer: Based on your description, I am not certain what happened. Junipers actually prefer full sun or a minimum of six hours of sun a day including the hour of noon, so I do not think sun exposure would have killed it. I would suggest you work with your professional nursery staff and/or county extension to determine what happened. It is possible it failed to root into the surrounding soil, or was over watered or underwatered, or it might have suffered a pest or disease problem, but it is very difficult to make this type of diagnosis long distance. I'm sorry about your pom pom shrub.
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