HI, I am a new gardener so I have no idea what is happening to my newly planted hydrangea (planted about a month ago). I have been watering it every other day, but leaves are turning brown and those that don't are yellowish. I planted two hydrangea side-by-side and one is doing remarkably better, got some brown leaves, but at least the rest are not yellow. i have a few pictures-- i posted them to gallery.. i can't even describe what is exactly happening to it :( It gets afternoon sun and mostly in shade in the morning.. is it possible to keep it in that place? thank you!

Here is a link that might be useful: hydrangeas