Drill holes all over a shiny 20-gallon galvanized metal trash can and 1 other common yard item and folks around town will be speechless at the result.
Variations & Tips
For colder climates, add a layer of straw or mulch around the trash can for insulation. Use a plastic barrel instead of a metal trash can for a lighter option. In arid regions, consider adding a small irrigation drip line to keep the compost moist. Plant specific adaptations include situating the tower near nitrogen-hungry plants like corn or squash, or adding coffee grounds to the compost for acid-loving plants such as blueberries.
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