How big will the Inspired Violet butterfly bush get in zone 5-6? I see it says 5-10, big difference. Thank you. I have a 5-5 space.
Certified GKH Gardening Expert
The size of the plant can vary based on environmental conditions, which probably accounts for the large range in sizes. A site with lower sun, more difficult soil, or lower soil fertility will lead to a smaller, slower-growing plant. It can also be pruned to keep it small.