Answer: Miracle-Gro is considered a chemical fertilizer. Organic fertilizers are made from the remains of once-living things and contain carbon elements. Chemical fertilizers are usually made from mineral salts and contain no carbon.
Here are some organic fertilizer sources:
Nitrogen: alfalfa meal, blood meal, coffee grounds, cottonseed meal, fish emulsion, seabird guano.
Phosphorous: bone meal, rock phosphate
Potassium: greensand, seaweed, kelp
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