Q.Lilac Bush
I planted a lilac bush last week, then it rained for 4 days straight. Now 5 days later, all the petals fell off the bush and it looks brownish. Can I save my lilac bush? Did the rain cause this? Should I try to plant it somewhere else? Thank you.

Certified GKH Gardening Expert
Since it was recently planted, it's most likely suffering from transplant shock. This article will help: https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm