After the pumpkin has set and is around volleyball size, you will need to reposition it. This takes time and patience moving your pumpkin. You will want to move the pumpkin in the evenings when the vines are warmer and more flexible. Move your pumpkin only a little bit each day. It can take up to a week moving your pumpkin a little each day to get the stem 90 degrees to the vine.
what is the reason i move them everyday?
You only want to move the pumpkin until it is perpendicular to the vine or forms a ninety degree angle with the vine. If you don’t do this with a giant pumpkin, it will grow too big for you to move and grow into the vine. Once it grows into the vine, you risk snapping the stem from the vine.
when I try and position my pumpkin, the bottom slides out again and it goes back to it’s side. Should I put something under it like a rubber non slip mat? The vine is coming down from a bush and the pumpkin (of course) is right where the vine hits the ground.
You do not want to use rubber under your pumpkin if it’s not slick and porous. Your pumpkin needs to have the ability to slide as it grows. Many of the pumpkin growers use a milling fabric that’s placed under their pumpkins. This year, I have been using sand to place under my pumpkin and make adjustments. I would suggest only moving your pumpkin a 1/2 an inch a day. I would push sand or dirt (depending on your climate) next to the pumpkin to keep it in place. Also, make the adjustments when it’s warmer out so the you don’t run the risk of snapping it off. Hope that helps!