We planted a bunch of lilac bushes from Home Depot about two weeks ago but they seem to be dying. See the picture below. Our dirt around here seems pretty poor so we added a few shovels of organic dirt from Home Depot and a shovel full of rabbit poo into each hole.
My wife checks the plants every day and waters them for 10-15 seconds each morning if the dirt looks dry, which is the only water they get being 1 to 5 feet outside the range of our sprinkler system.
Any idea what is wrong and how to save them?