that will be great that you can garden together. My wife and I do garden together although I do the most of it. It is a joy when husband & wife can enjoy this great hobby together. And yep Stephanie, I too will have a greenhouse if this darn weather would ease up a little. Been really windy and cold here plus a little snow and rain. as far as the three sisters I can remember my mama & daddy doing that. He planted the corn a few weeks earlier, then the pole beans, followed by the summer squash. I understand the Native Americans taught this to the white people. I'll be looking for any tips and advised from you on the greenhouse adventure!
Good luck
Errol