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The Daily Insight

What is in Miracle Gro Moisture Control Potting Mix

Author

Matthew Shields

Published Jun 25, 2026

Miracle-Gro® Potting Mixes contain a blend of sphagnum peat moss, aged bark fines, perlite, plant food, and a wetting agent. Miracle-Gro® Moisture Control® Potting Mix also contains coir (coconut husks) to help protect against over and under watering.

What are the ingredients in Miracle Gro Moisture Control Potting Mix?

Miracle-Gro® Potting Mixes contain a blend of sphagnum peat moss, aged bark fines, perlite, plant food, and a wetting agent. Miracle-Gro® Moisture Control® Potting Mix also contains coir (coconut husks) to help protect against over and under watering.

Is Miracle Gro Moisture Control Potting Mix good for indoor plants?

Ideal for all kinds of indoor and outdoor potted plants, its job is to provide anchorage and support for the roots, as well as proper drainage, airflow and nutrients for growing plants.

What is the difference between Miracle Grow potting soil and moisture control?

Potting mix is the key to beautiful, bountiful container flowers and vegetables. … Miracle-Gro Moisture Control Potting Mix absorbs up to 33% more water than basic potting soil (versus potting soil that does not contain sphagnum peat moss, coir and wetting agent) and feeds up to 6 months.

Does Miracle-Gro Moisture Control potting soil have fertilizer in it?

In Idaho and Texas This Product is Formulated with Sphagnum, Peat Moss, Processed Forest Products, Compost, Coir, Perlite, Fertilizer (See Below), and a Wetting Agent.

Is Miracle-Gro Moisture Control Potting soil organic?

The potting mix is supposedly made with all organic and natural ingredients – sphagnum peat moss, processed forest products, coir, compost, organic fertilizer, and yucca. It’s available in a 55 qt bag. The Miracle Gro Organic Moisture Control Potting Mix is priced at $9.99.

Are there chemicals in Miracle-Gro?

Miracle-Gro is a synthetic fertilizer that contains ammonium phosphate and several other chemicals that can be toxic to your soil and plants. … And there’s more: long-term studies at the University of Wisconsin have shown that acidic chemical fertilizers are causing serious, permanent damage to our soils.

What are the ingredients in Miracle-Gro plant food?

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

Is Miracle-Gro Moisture Control acidic?

Miracle-Gro® Balance is a premixed blend to help buffer soil acidity. It contains compost that helps increase the availability of nutrients in acidic soils.

Can I use moisture control potting mix for vegetables?

To grow a successful container vegetable garden, start with great soil—not soil from your yard, but what’s known as a potting mix. … Another great option is Miracle-Gro® Moisture Control Potting Mix, which helps protect plants against over- and under-watering.

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Is vermiculite the same as perlite?

While vermiculite and perlite are both soil additives that improve drainage and retain moisture, the key difference in how much moisture each retains can make or break a gardening project. … Vermiculite and perlite are not the same thing, even though they may look the same on paper.

What's the best potting mix for indoor plants?

A good indoor potting mix is usually composed of peat moss, vermiculite and perlite. These soilless mixes absorb moisture very well and resist compaction, but they tend to dry out very quickly. Since they do not contain any nutrients, you must provide your plants with a consistent supply of fertilizer.

What is the pH level of Miracle Gro potting mix?

The pH ranged from 4.4 to 7.2, and similar wide ranges were noted for other nutrients. The materials also varied in their ability to retain water – percent water retention ranged from 25 to 100%. Two garden mixes (Miracle Gro and Sta-Green) were used to test the growth of turnips.

Which potting soil is best?

  • BEST OVERALL: Black Gold All Purpose Potting Soil.
  • RUNNER UP: Proven Winners Premium All Purpose Potting Soil.
  • BEST ORGANIC: Espoma Organic Potting Mix.
  • BEST FOR SEEDS: Miracle-Gro Seed Starting Potting Mix.
  • BEST FOR INDOOR PLANTS: Miracle-Gro Indoor Potting Mix.

What is in cactus potting mix?

One common cactus soil recipe includes three parts potting soil, three parts sand, gravel, or grit, and two parts perlite or pumice. Mix this ratio of ingredients thoroughly in a large container before using it to plant your cacti.

Is Miracle Grow Potting soil toxic?

Miracle-Gro potting soil is safe for vegetables. … Container gardeners often use potting mixes like Miracle-Gro potting soil.

Is Miracle Grow toxic to humans?

Safety Information. Miracle-Gro contains urea, which can irritate the mouth, throat, esophagus and stomach. Swallowing it can cause nausea and vomiting. … Call a doctor or poison control center and do not induce vomiting unless instructed to do so.

Is Miracle Grow Organic Really Organic?

Miracle-Gro Performance Organics growing media products feature a revolutionary blend of natural and organic materials and locally sourced, specially aged compost. … Miracle-Gro Performance Organics soils and plant foods are OMRI (Organics Materials Review Institute) listed as suitable for organic gardening.

Can you use Miracle-Gro Organic Choice Potting Mix for vegetables?

Best for growing potted or container plants and vegetables. Miracle-Gro Organic Choice Potting Mix contains a special blend of natural and organic ingredients designed to help container plants and vegetables thrive.

What is perlite used for?

Perlite speeds up the germination and rooting, improves aeration, draining & insulation in Potting Mixes and improves the texture of clay soils. … The main function of perlite for the gardener is to aid water retention and aeration as well as improve compost mixtures.

How does moisture control potting soil work?

We water the plant and give it an adequate drink, the hydrogels do the job they are designed to do (soak up as much moisture as possible) and the plant will eventually starve because the soil keeps the moisture locked away in little beads. … It holds the moisture, but will give it back to the roots as the plant needs.

Is Miracle Grow soil acidic or alkaline?

You can’t technically measure the pH of a solid product, like Miracle-Gro Water Soluble All Purpose Plant Food. Our liquid products are formulated to have a pH between 6 and 7 (close to neutral).

What is the best pH for garden soil?

Vegetables, grasses and most ornamentals do best in slightly acidic soils (pH 5.8 to 6.5). Soil pH values above or below these ranges may result in less vigorous growth and nutrient deficiencies.

What is the fastest way to lower pH in soil?

Soil pH can be reduced most effectively by adding elemental sulfur, aluminum sulfate or sulfuric acid. The choice of which material to use depends on how fast you hope the pH will change and the type/size of plant experiencing the deficiency.

Why is Miracle-Gro bad?

Why Is Miracle-Gro Bad? Depending on the Miracle-Gro products you use, Miracle-Gro may have high levels of salt, which over time strip your soil of its natural nutrients and prevent plants from absorbing them, causing a type of “lawn burn.”

Is there calcium in Miracle-Gro?

Miracle-Gro tomato fertilizer supplies nitrogen, phosphorous and potassium, but it does not contain calcium. … It has a blend of macro- and micronutrients and supports good tomato growth. Plus, it increases the water-holding capacity of the potting soil.

Can we use Epsom salt for all plants?

If the soil becomes depleted of magnesium, adding Epsom salt will help; and since it poses little danger of overuse like most commercial fertilizers, you can use it safely on nearly all your garden plants.

Can I use Miracle-Gro Moisture Control potting mix for herbs?

Regardless of size, every pot needs drainage holes to allow excess water to drain away from roots. Use good soil. Fill containers for your herb garden with a premium quality bagged potting mix, like Miracle-Gro® Moisture Control® Potting Mix, which protects against both under- and over-watering.

Is Miracle-Gro potting mix good for tomatoes?

Aim for soil that is nutrient-rich and drains well. … When planting tomatoes in a raised bed, use a 50-50 blend of garden soil and potting mix, or 100 percent organic Miracle-Gro® Performance Organics® Raised Bed Mix. When growing tomatoes in pots, choose a container that is at least 18 to 24 inches wide.

Can you use Miracle-Gro potting mix for herbs?

Your herbs will need ample nutrients, oxygen and moisture at the root level. Always use a quality potting mix, such as Miracle-Gro® Indoor Potting Mix, that will allow for proper airflow and drainage so your herbs can root deeply and thrive.

What holds more water vermiculite or perlite?

Water Retention Perlite and vermiculite are both good at retaining water, but vermiculite acts more like a sponge, holding much more water than perlite and offering less aeration for the plant roots. Perlite retains water because of its large surface area with nooks and crannies available for water storage.