Composting is the most well known use for old coffee grounds. You can add your grounds, filters and even used tea bags right onto your compost pile. As they decompose, they will add nitrogen to your compost. You can also add your old grounds directly into the soil around your plants, or in your flowerpots. The old coffee grounds will increase the acidity of the soil so you’ll want to be careful about the amount that you use.
Regards Madeleine
