Check Local Listings:
PBS show on raising giant pumpkins. (click)
Just below the screen you will see the Episode Links which will take you to your local PBS station's schedule.
I don't understand the rules of this thread but I had 3, 17.5# pumpkins in the Sisters Garden this season, and several smaller. Obviously, no winners but there were a few pumpkins in my garden.
It took me years to come up with a variety that would consistently mature here. RockStar has no problem with that. The fruits will begin to change to orange in August and most will be fully orange by about the 3rd week of September. RockStar is a fairly large Jack o'Lantern type but the vines would have required less competition to reach their maximum size. I suppose that would be about 20#.
Steve
no Lord of the Gourd