Used coffee grounds can serve as a nutrient-rich mulch for plants, offering benefits like improved soil structure and added organic matter. However, improper application—such as dumping them directly in gardens—can disrupt soil pH or attract pests. Experts recommend composting grounds first or mixing them into soil in moderation to avoid potential drawbacks. The guide outlines best practices for safely incorporating this common household byproduct into gardening routines.
Coffee grounds can help your plants thrive, but don't just empty your filter into your garden: Here's how to use grounds as mulch safely and effectively.