I'm new to gardening and may have already killed my first plant! Less than 24 hours back I planted two medium sized Viburnum Spring Bouquets - added about two cups of fertilizer to each plant and a LOT of water. Until this morning they looked fine but I just noticed that all the stem tips on one of them have softened and started drooping. The other one is ok. What did I do wrong - too much fertilizer or water?
Thanks for any idea or suggestions that you may have!!
Edited to add: Checked the plant again at 11 p.m. and drooping branches are up again.