The mix I use for my containers is 1/2peat and 1/2 compost.
I mix it up in about 30 gallon batches. I also add
2 cups of dolomite lime
1 cup of Bonemeal
1 cup of Gypsum
1 cup of 10-10-10 fertilize
This works great for my containers and not too expensive as the compost is free for me.
