In laying out my square foot raised beds, I've been paying particular
attention to selecting companion and non-companion plants. Several
times now, while doing reading, I've come across phrases like:
Do not plant x close to y (onions close to peas, for example)
But in none of these books/pamphlets does the author define "close".
My raised beds are 4' x 4' (divided into 16 squares), with 30" walkways
between the squares. I'm certain I shouldn't plant non-companions in
adjoining squares, but can they be planted in the same block? In
In other words, how close is "close"?