Gordon wrote:

A friend told me about the Three Sisters growing method.
Apearently It comes from the Native Americans who would
grow Corn, Beans and Squash together. The corn stalks
would provide a trellis for the beans to grow on, and
the squash would grow on the ground and provide cover
to control the weeds. Sounds intresting.

Anyone else heard of it? Anyone tried it?

I've heard of it as a nutritionally complete though boring system. You
can grow those crops and live on them for years without getting ill.
Add a small amount of hunted meat and it's livable. I've never tried
planting them together.