Ways to Improve Your Garden By Re-using Coffee Grounds
As a compost amendment: Coffee grounds can be used in the green part of your compost bin while straw, wood chips or dry leaves make up the brown part. Add a teaspoon of lime or wood ash for every 5 lbs of coffee in your compost pile. It will help neutralize the acidity created by the coffee grounds. For the same reason, used coffee grounds should not exceed 25% of your composting material. Coffee grounds generate heat that allows for quicker decomposing. The resulting “black gold" is a natural fertilizer that can be used to improve your garden.
Adding used coffee grounds to your composting mix helps protect the environment as well. Coffee grounds thrown out as trash ends up in landfills where they break down without air and generate methane, a toxic green house gas.
As a soil enhancer: Newly Used coffee grounds can be scattered around plants to enrich the soil. A thin layer is best as thick, wet coffee grounds can get moldy. Apply just before watering or before rain is expected for maximum benefit. The nitrogen will seep slowly in to the soil providing a nutrient essential for plant growth.
As an addition in worm composting: Used coffee grounds can also work wonders in worm composting. Worms love the acidic flavor of coffee grounds. Their movement through the compost mix helps to aerate it well. Add lime or crushed egg shells to neutralize the mix. The resulting compost will help to improve the quality of flowers and fruits in your garden.
As a mulch: A mix of wood chips or saw dust and used coffee grounds applied as a mulch prevents a crust forming around your plants. It helps to control soil moisture, aerate the soil and provide nutrients required for plant growth and garden improvement.