I just noticed a bunch of baby Rose of Sharon inexplicably growing in shade behind a hedge. They appear to be runners from a Rose of Sharon we planted. There is also an unidentified volunteer deciduous tree that may or may not be a Rose of Sharon. They still have leaves. There is also a volunteer Eastern Red Cedar. This is at my Mom's house.

1.) When would be the best time to move them? Thursday or Thanksgiving? Those are the two times I would have time to get down there and move them.
2.) When I dig them up it will leave a hole near the foundation. What do I fill the hole with to avoid creating basement leak problems? I have potting soil, gravel and sand.