Mel's Mix versus 100% Compost
I am starting some boxes for growing. I don't have much room around the yard for doing any growing, but I have a big driveway so I made a 2' wide x 16' long x 1' tall box to put veggies in.
I have the Square Foot Gardening book and have read about Mel's Mix (1/3 compost 1/3 vermiculite 1/3 peat). However, I find this pretty cost intrusive to fill such a large container with all of this.
Just down the road from us we have a county compost facility.
What is everyone's take on Mel's Mix versus using 100% compost to fill the containers?