We created the hills by putting down cardboard on the grass and covering it with a mixture of dirt and compost. It seems to be working fine. The weather is not the greatest for growing pumpkins, I think they like a little more heat.
I’ve included some pictures of the garden also. The garden plots seem to be loving the weather. A little sun, a little rain, they really grow. I only planted one tomato plant but I’m glad I restrained myself. The tomato plant is huge!