Definition of undergrowth for Students. : low growth on the floor of a forest that includes shrubs, herbs, and saplings.
From Organic Gardening Magazine, July/August 2000 Issue. Miracle-Gro is a synthetic fertilizer that contains ammonium phosphate and several other chemicals that can be toxic to your soil and plants. It is prohibited from use in certified-organic farming.
Definition of Miracle-GroÂ® Categorized under General Definition as written by darius: From Organic Gardening Magazine, July/August 2000 Issue. Miracle-Gro is a synthetic fertilizer that contains ammonium phosphate and several other chemicals that can be toxic to your soil and plants. It is prohibited from use in certified-organic farming. Hereâs what soil expert Robert Parnes, Ph.D., says in his book Fertile Soil: [Ammonium fertilizer] acidifies the soil, and thus it is probably more harmful to soil organisms than any other nitrogen fertilizer . . . .