I have long followed Mel Bartholomew's Square Foot Gardening methods. I space the plants out so I am getting the biggest bang for my available space.
However, Mel must not be growing the same kind of summer squash as me. According to the Square Foot Gardening book and website, a summer squash bush needs a 3' x 3' space.
So I gave my white scallop squash that much room when I planted the seeds.
3' x 3' Mel Bartholomew? More like 6' x 6' for my squash!
I'm not complaining. I love searching for the squash and finding one I hadn't seen the day before.