Organic Guides - Potting Soil
Quality potting soil should be lightweight but avoid peat moss, which is antimicrobial. Howard recommends a custom blend of 60% compost and humates, 30% mineral materials like lava sand and diatomaceous earth, and 10% sugars like cornmeal and wheat meal, with additions of greensand, beneficial microbes, and organic fertilizers like fish and kelp meal.
TopicsPotting soil
