I checked the FAQ section and did a search but didn't find an answer....
What exactly is a border plant? (I'm assuming it's just planted on the boarder of a raised bed so it doesn't technically take up a square of space).
And what plants can be used as border plants? (Onions, garlic, potatoes, lettuce?)
Would lettuce and/or spinach work with something such as broccoli and cauliflower? I got a suggestion to 'checkboard' these...so wouldn't that allow enough room at the border?