good question, but I don't know. I would guess it would still work. It's not like they have to be touching right?. Give it a try.
:)Laura

I would plant inside and outside of the bed to be on the safe side, I use marigold's.. Good Luck

I spend a lot of time in the potager forum and this seems like a question tailor made for them! In my opinion, anything within about 3' of one another will benefit (or suffer) from the synergies of companion planting. Of course I have very little evidence of this, LOL, but in my experience that is the case. I like to stick nasturtiums in the corners of some raised beds so they spill out onto the gravel (which I use for paths in my veg garden).