This is our 5th year using about 160 square feet of garden space. We have never really played with companion planting though. We have several zucchini (16 squares, 4x4), squash (2x2), tomatoes (2x2), peppers (~2x2), etc.
When you are companion planting in a square foot garden, are you able to plant the companion crop in the squares that are occupied by the larger plant - could I plant a bunch of radishes and nasturtiums in the 16 square feet taken up by the 4x4 of the zucchini? Can I plant carrots in the 4 squares taken up by a tomato plant with the tomato in the center?
This would seem to be correct way since beans were grown at the base of corn and use the stalks as a pole...
Any feedback would be helpful. Thanks!