I planted some large dahlias this year using a support system that someone
(here?) recommended. It consisted of tomato cages that had the lets cut
off. You put the cage on the ground, large circle down, and fastened it to
the ground with the wire legs that you cut off.

All went well for a while. The dahlia got to be about 6 feet tall and were
covered with flowers. Last nigh we had a moderate storm with some big
gusts. One neighbor lost his Bradford pear (not that it was a shock). The
wind broke off my dahlias about two fee from the ground. They are all bent
over and pinched tightly on main stem. I doubt that they could be uprighted
and live? Any advice would be appreciated. At this point I assume that the
only thing I can do is cut them off at the ground and let them start over.