Copper sulfate is also a bactericide, and as such, is incredibly harmful to soil life. Anything with the Miracle-Gro label should be avoided entirely: Bagged potting soil and garden soil, 'Shake n Feed,' that blue stuff, and yes, even so-called “Organic” Miracle-Gro products should be entirely avoided.

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. Usually these fertilizers are also highly soluble, so they leach away and pollute our water systems, too.

Technically, potting soil is nothing but dirt that no longer has the adequate elements necessary to support the growth of potted plants or indoor plants. Potting mix, however, doesn't have any soil but it is a blend of perlite, peat moss, vermiculite, fine barks, and more.

The chemicals in Miracle-Gro soil can harm the natural balance of your garden's ecosystem. They may not only affect the health of the plants you're trying to nurture but also impact beneficial insects, soil microorganisms, and nearby wildlife.

Ingredients. Derived From Ammonium Sulfate, Potassium Phosphate, Potassium Chloride, Urea, Urea Phosphate, Boric Acid, Copper Sulfate, Iron EDTA, Manganese EDTA, Sodium Molybdate, And Zinc Sulfate.

Miracle-Grow Potting Mix 0.21-0.11-0.16 Guaranteed Analysis F1144: Total Nitrogen (N) (a Portion of the Nitrogen, Phosphate and Potash Has Been Coated to Provide [0.12%] Coated Slow Release Nitrogen [N],[0.04%] Coated Slow Release Available Phosphate [P2O5] and [0.08%] Coated Slow Release Soluble Potash [K2O]) (0.21%), ...

This professional-grade potting soil is made from a blend of Premium Canadian sphagnum peat moss, processed softwood bark and horticultural-grade perlite. It contains a professional wetting agent and dolomite lime to buffer soil pH and is available in two sizes.

Derived from Polymer-Coated: Ammonium Nitrate, Ammonium Phosphate, Calcium Phosphate, and Potassium Sulfate; and Ammonium Nitrate, Ammonium Phosphate, Calcium Phosphate, and Potassium Sulfate.

Miracle-Gro® Water Soluble All Purpose Plant Food instantly feeds vegetables, trees, shrubs, and houseplants to grow bigger and more beautiful than unfed plants. Simply feed them every 1-2 weeks. The formula is safe for all plants, and is guaranteed not to burn when used as directed.

Is Miracle-Gro Organic? Miracle-Gro is not an organic fertilizer as it is made with chemicals or syhtnetic ingredients.

Miracle-Gro contains urea, urea phosphate, potassium chloride, boric acid, ammonium phosphate, manganese EDTA and iron EDTA, according to WIRED. Urea provides carbon, oxygen, hydrogen and nitrogen. Urea phosphate is added to aid plants with flower and fruit production. It also prevents fungus.

0.21-0.11-0.16 Miracle-Gro potting mix contains a unique blend of ingredients to improve soil texture, maintains the pH value of the soil and help the soil hold onto enough water so that the plants can grow without getting soggy feet. The NPK Ratio for this product is 0.21-0.11-0.16.