Last fall I emptied out all of my soil from the window boxes and planters. Most of the soil that I see at the garden centres for containers is mostly peat moss. I am wondering if I can make up my own mixture of peat moss, some garden soil, compost and perlite/vermiculite. I have a lot of containers to fill and would rather spend the money on plants. I already have the peat moss and either perlite or vermiculite. Any suggestions, along with ratios, would be really appreciated. I want to start planting this weekend. Penny in Halifax, N.S. 5/6a