Answer: Junipers need full sun and average soil with good drainage to grow their best. Based on your description I am not sure what has happened to create the bare area, but if the original plants died then it would be a good idea to find out why they died before planting more of them -- in case it was due to poor drainage or a disease or an insect problem that would affect the replacements as well. To combat the grass, you can slide sheets of corrugated cardboard in underneath the branches and smother the grass. When covered with mulch, the cardboard is invisible. In the meantime, you might consider using a large container of annuals to fill in the area until the replacements grow.
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