Do I cut off dead flowers from butterfly bush? Also, I didn't pick lavender blooms--do I cut them off?
Butterfly Bushes, Lavender
Certified GKH Gardening Expert
Here is an article or two that you may find helpful: https://www.gardeningknowhow.com/ornamental/shrubs/butterfly-bush/butterfly-bush-pruning-how-to-prune-a-butterfly-bush.htm
Deadheading or some pruning (removing dead flowers) seems to extend the bloom time.