Keeping a worm farm is an easy project
Skip the soil and try growing vegetables in an aquaponics system that turns fish waste into fertilizer for your plants.
Worm castings -- AKA poop -- add valuable nutrients to the soil and is easy to make. The hardest part is making the bin and that's not difficult.
Recycling organic debris for composting and improving soil doesn’t have to be a chore! If hot composting is not for you, try one of these easy cold-composting methods. Each has advantages and disadvantages but the end result is the same: improved garden soil and less organic waste in landfill.