I use mostly raised beds, but don't practice Mel's system. I have some
4 x 4 raised beds and one 4 x 12. In the 4 x 4 , I was thinking of planting
9 peppers. Would that leave enough for air circulation around plants.
In the 4 x 12, I think I can get at least 12 without too much crowding.
I would love to use course vermiculite, but it is too expensive. They
sell it in small bags at the big box stores.