Rose of Sharon in Zone 5A Canada
Our relatives sent us seeds of Rose of Sharon which are a deep red, almost black shade. I wintersowed them and planted out 5 seedlings in different areas of the yard. They look healthy, but they have hardly grown over the summer. They are still only about 4 inches tall. I live in Ottawa and have never seen ROS plants here and I wonder if it's worthwhile trying to overwinter them. Perhaps they are plants that sleep, creep, and leap. If anyone has experience with this plant, your advice would be appreciated.
Thanks in advance.