Need advice about butterfly bush
Planted large (about 6 ft tall) purple butterfly bush in full sun in front of my house back on Mother's Day. Some of the leaves at the bottom are starting to wilt and turn brown (dying) and some of the leaves look to have white powder-looking stuff on them. A few leaves look to have holes eaten in them. I'm new to planting flowers and would love any suggestions on how to hopefully bring this butterfly bush back to health! Thanks in advance for any advice!