Source: My yard...
By Eileen from Elk Grove, CA
By Ellen Brown
My Butterfly Bush is not doing so well this spring. There are some green leaves starting to show at the ground level, but usually it is totally green by now and thriving.
I'm wondering if a vole or mole attacked it from under the ground. If so, will it make it back this year? The picture of it was taken last spring. I put repellent around it and that has saved other plants from the critters.
Hardiness Zone: 6b
By Susan from Florissant, MO
Butterfly Bushes often die back to the ground in colder climates. You don't have that happen every year there in Florissant (I used to live in Ferguson) but you may have been colder than average or had more fluctuations last winter. Many people just treat them like perennials instead of shrubs, and prune to the ground in spring, regardless.
So, don't worry about it. Just cut it back, feed and mulch it and stand back! It will grow fast. The blooms may be slightly later, but may actually be larger.