A couple of days ago I planted two Piilu clementis plants about 5' away from each other.

One is doing well. The other has lost it's petals and has gone limp. I don't know what to do. Same watering, soil and sun for both.

I planted both the same. Big whole. Amended soil with organic potting soil mix, watered. Mulched. Have been watering 2x a day as directed by the garden center.

Could I have accidentally damaged the stems while planting? I had some difficulty removing the reeds on that one. If so what should I do?

What other possible causes might there be?

Not great with plants. Posted more questions when I first planted here http://forums.gardenweb.com/forums/load/clematis/msg0617144513951.html