If you’ve been looking for a way to stop pests like snails and slugs from snacking on your outdoor plants, then here’s a simple solution to your problem—sprinkle some coffee grounds around the base of your affected plants. Though this solution may sound a little odd at first, rest assured that it can be quite effective because coffee grounds are abrasive enough to naturally act as a barrier to any hungry snails and slugs that may happen to pass by.
Do be aware that not all plants will react well when exposed to fresh coffee grounds due to the highly acidic nature of coffee. If you are concerned that acidic coffee grounds may hinder the growth of your plants, sprinkle the substance in moderation or consider putting used coffee grounds around the base of your plants instead of fresh grounds. Used coffee grounds are nearly neutral in pH, meaning they won’t cause excess acidity in your soil.