do used coffee grounds help plants
Why Plants Like Grounds. Although the grounds do not generally alter the soil's pH, they do improve soil texture and drainage. Additionally, as coffee grounds decompose, they release nitrogen, potassium, phosphorus and other minerals that support plant growth. Some examples of plants that thrive in a nitrogen-rich planting area include leafy vegetables such as spinach, tomatoes, corn, roses, camellias, rhododendrons and azaleas.