Okay, we have now put a yardstick out by the pumpkin plant. Saturday, 6/28/08, the plant grew 4.5 inches! The diameter of the plant is over 25" now!
We are watering it 2-3x/day. I am putting a small amount of organic fertilizer on it weekly.
I think Bob & I are way more excited about this project than the kids, but I think now that the growth has started, hopefully they'll get more interested.