I've tried to grow pumpkins every year for a long time and I always have the same problem - they end up flat on one side. I've seen pumpkins in stores and they are much more rounded. This year I planned to try to stand them upright when they were softball sized. But, that didn't work. The vines had sent out those little "grabbers" that hooked on to weeds and went into the dirt, so I couldn't really move the vine and I broke a vine trying to lift up a pumpkin, so I just left the rest alone. Anyone else have this problem and know of a solution?