I bought a bunch of those felt planting bags (round with flat bottoms) and have tried for several years with them. I get potatoes but it takes a lot of soil to fill them as I unroll. I have tried leaves and straw but that didn't seem to work. I watered well and we get a fair amount of rain so they had moisture. But I wasn't impressed. Oh, the bags sit on my front deck facing south west (more west than south) so they get good sun. Also I got scab the first year (used darn store bought potatoes instead of good certified potato seed) and now I don't think I can use the pots again. Haven't planted in them in two springs. Do you figure whatever made them bad is gone.? Could I put them in the washing machine with a little bleach??