As for rosemary in a pot trimmed like a Christmas tree, check your local greenhouse or grocery stores. Our local food mart has them at the start of the Christmas season. Lovely aroma.
Our local grocery has never had them, but Walmart has sometimes. We don’t have a local nursery - the nearest one is 40 miles away. We have a local feed store, but they don’t have plants-just seeds, grains, and some farming supplies.
Walmart is the most likely, and they didn’t have any this year.