I also used the computer to print off blank white grids to put on larger 4×6 inch magnets, which represented my planned 4×6 raised garden bed itself (seen in the center of the photo). You don’t want more than 4 feet wide, as you want to be able to easily reach the center plants, and 6 feet is about as long as I can go on my slope. Then, using my reference books as guides, I played around with filling the grids in with labeled, color-coded magnets until I had a design I liked.