Using Coffee Grounds In the Garden
If you drink coffee and were wondering if you could use coffee grounds in the garden, you'd be right. Even though the coffee grounds are slightly acidic on the pH scale, there's no harm in adding them to your garden as long as you don't drink 20 pots of coffee a day.
If you're concerned about lowering the soil pH by adding used coffee grounds to the garden, you can simply counter the effect by adding in a small amount of lime. But you can bypass this added step altogether by just working the coffee grounds into the soil around acid loving plants such as blueberries, azaleas or viburnum. Any flowering shrubs will love the little pep of nitrogen that is available in the coffee grounds. And if you are into composting and have a compost bin or compost pile, coffee grounds is one of those things you can compost. Composting coffee grounds in your compost bin will help neutralize the pH level naturally. If you're really worried about coffee grounds affecting the soil pH you can have a soil pH test run. No matter which way you look at it, just like leaf mold, coffee grounds in the garden is a winner all around.