5. Garbage Bag
Plant a large plastic garbage bag following the instruction for a Grow Bag, punching a few holes through the plastic for drainage. Roll the top edge of the bag to help it stay upright; otherwise the bag is prone to sag and spill soil. To harvest, rip the bag and dump out the contents.
Pros: Like the Grow Bags, a garbage bag can be employed where in-ground growing is not an option. Black bags capture solar heat to speed early growth.
Cons: Aesthetically, this is the least appealing choice. Yield was meager, perhaps because the thin plastic allowed the soil to heat up too much, limiting tuber formation.