al's mix and square foot gardening
i just started reading about square foot gardening, and it sounds like container gardening, except that its a whole raised bed, instead of containers. it also asks for a different soil mix: 1/3 vermiculite, 1/3 compost, 1/3 peat moss.
how come it is so different from al's mix? they are both essentially in containers, albeit the sfg container is a huge bed.
how can people swear by sfg if the soil mix is so different? aren't they concerned about drainage?
i've already posted this in the sfg forum, but am curious to see what people say here.