But I am having a problem: they are really wilting. It looks like they are dehydrated, but that can't be right- it's been raining every day!
Are they in the ground and do you have moles in the yard?
I've had that happen, plants and small trees wilted, I would water them and they sprang back, but next day all wilted again. I knew I had lots of moles around the yard, turns out they had tunneled all around and under the plants. I stepped around the base of the plants and collapsed the tunnels, then watered and it helped. But you have to keep checking for new tunnels around the plants for awhile to make sure they didn't just come back.