What makes a plant grow healthiest, horse manure, coffee grounds or banana peels? I need to know this for my science fair. I need research.
What Makes a Plant Grow Healthiest
Certified GKH Gardening Expert
Here are some articles that should help you with your research:
well horse manur adds nitrogen so does coffee grounds, but banana peels ,potasium but compost does the most good, add all these together win carbon material and boom growth,