Coffee grounds make a great fertilizer for your plants - EasyEcoTips
Coffee | Yara Kenya
Using Coffee Grounds for Compost and Fertilizer | Ground to Ground
Spent coffee grounds improve the nutritional value in elements of lettuce (Lactuca sativa L.) and are an ecological alternative to inorganic fertilizers - ScienceDirect
How to Use Coffee Grounds in Your Garden
Are Coffee Grounds Good for your Garden? - Oxford Garden Design
Using Coffee Grounds for Plants In The Garden | HGTV