Comparison: Best Miracle Gro Soil For Indoor Plants (Updated | Nov 11th)
In this guide, we’ll break down the best Miracle-Gro soils for your houseplants—comparing ingredients, moisture control, and root support—so you can skip the guesswork and give your plants the healthy foundation they truly deserve. Let’s find your perfect potting match.
- Best for gnat-resistant soil: Miracle-Gro Houseplant Potting Mix: Fertilized
- Best for coconut coir hydration: Miracle-Gro Indoor Potting Mix
- Best for organic water guard: Miracle-Gro Organic Indoor Potting Mix
- Best for aquacoir moisture: Miracle-Gro Moisture Control Potting Mix
- Best for growth-boost blend: Miracle-Gro Potting Mix
- Best for color-boost soil: Miracle-Gro Potting Mix
- Best for twin pack gnat-resistant: Miracle-Gro Houseplant Potting Mix – Fertilized Soil
- Best for organic twin pack: Miracle-Gro Organic Indoor Potting Mix
- Best for outdoor organic feed: Miracle-Gro Organic Outdoor Potting Mix
Product Comparison: Best Miracle Gro Soil For Indoor Plants
Miracle-Gro Houseplant Potting Mix: Fertilized, Perlite Soil for Indoor Gardening, Designed to Be Less Prone to Gnats, 4 qt.
- Growing indoors is easy under the right conditions; Miracle-Gro Houseplant Potting Mix combines key elements plants need to thrive
- Recommended for growing beautiful indoor houseplant varieties like Pothos, Spider Plants, Monstera, Philodendron, English Ivy and more
- This indoor plant soil is less prone to gnats, thanks to the combination of perlite, sphagnum and peat moss that’s just right
- Certified by the Mulch & Soil Council as a quality product in compliance with industry standards
- A single 4-qt bag fills an 8-inch container; for even more spectacular results, start regular feedings with Miracle-Gro Plant Food 30 days after planting
Miracle-Gro Indoor Potting Mix, Blended for a Variety of Houseplants, Feeds for up to 6 Months, 16 qt., 2-Pack
- Miracle-Gro Indoor Potting Mix feeds houseplants for up to 6 months and is designed to be less prone to gnats (contains no compost or bark, which are known to shelter fungus gnats)
- This potting mix contains coconut coir, which holds and releases water and helps soil re-wet
- Where to use: Blended for a wide variety of indoor container plants, including climbing, foliage, flowering, and tropical plants
- How to use: To use, fill a container about 1/3 full with potting mix; add more mix after placing your plant in the pot
- What’s included: This bundles includes two 16 qt. bags of Miracle-Gro Indoor Potting Mix, each able to fill one 12-inch containers (exact amount may vary based on the root ball size)
Miracle-Gro Organic Indoor Potting Mix, Protects Against Over and Under Watering, for Indoor Container Plants, Houseplants and Starter Plants, OMRI Listed, 16 qt.
- Miracle-Gro Organic Indoor Potting Mix protects indoor plants against over and under watering
- This organic container mix is made with responsibly sourced sphagnum peat moss (one hundred percent of peat sourced from certified producers), coir, and quick-start natural fertilizer
- Use this potting medium with all types of indoor container plants, including houseplants and herbs; also great for seed starting
- To plant seeds, fill container with potting mix, follow seed package planting directions, and water; To use with transplants, partially fill container, place plant after loosening the root ball, cover with more mix pressing lightly, and water
- One 16 qt. bag of Miracle-Gro Organic Indoor Potting Mix fills one 12-inch container (amounts may vary based on the size of the root ball)
Miracle-Gro Moisture Control Potting Mix, For Container Plants, Protects against Over- and Under-Watering, 8 qt., 2-Pack
- Miracle-Gro Moisture Control Potting Mix feeds plants for up to 6 months and Grows Plants Twice As Big! (vs unfed plants)
- This potting medium protects against over and under watering; also absorbs up to 33% more water than basic potting soil* with exclusive AquaCoir Formula (*soil that does not contain sphagnum peat moss, coir, and wetting agent)
- Use this gardening product with all types of container plants, including flowers, vegetables, annuals, perennials, and shrubs
- To use this potting soil, fill a container about 1/3 full with potting mix; place your plant in the pot and cover with more mix
- This bundle comes with two 8 qt. bags of Miracle-Gro Moisture Control Potting Mix; each fills two 8-inch containers (exact amounts may vary depending on the size of the root ball)
Miracle-Gro Potting Mix, For Container Plants, Flowers, Vegetables, Annuals, Perennials, Shrubs, Feeds for up to 6 Months, 16. qt., 2-Pack
- Miracle-Gro Potting Mix feeds container plants for up to 6 months so you get more blooms for more color (vs. unfed plants)
- How to use: To use this potting medium, fill a container about 1/3 full with potting mix, place your plant in the soil, and fill the rest of the pot, pressing lightly
- What’s included: This bundles includes two 16 qt. bags of Miracle-Gro Potting Mix, each able to fill one 12-inch container (exact amounts may vary based on root ball size)
- Where to Use: Use this home gardening product with all types of container plants, including annual and perennial flowers, vegetables, herbs and shrubs
- This potting soil mix Grows Plants Twice As Big (vs. unfed plants)
Miracle-Gro Potting Mix, For Indoor or Outdoor Potted Plants, Flowers, Vegetables, Shrubs, Annuals, and Perennials, Feeds Up to 6 Months, 8 qt.
- Feeds all potted plants: Miracle-Gro Potting Mix feeds all types of potted plants, including flowers, vegetables, shrubs, annuals, and perennials for up to 6 months
- Promotes growth: This potting soil Grows Plants Twice As Big! (vs. unfed plants)
- Boosts color: Get more blooms for more color (vs unfed plants)
- Application: To apply this potting medium, fill a container about 1/3 full with potting mix, place your plant in the soil, and fill the rest of the pot, pressing lightly; water thoroughly
- Coverage: Each 8 qt. bag of Miracle-Gro Potting Mix fills two 8 inch containers (exact amounts may vary depending on the size of the root ball)
Miracle-Gro Houseplant Potting Mix – Fertilized Soil, Designed to be Less Prone to Gnats, 4 qt. (2-Pack)
- Growing indoors is easy under the right conditions; Miracle-Gro Houseplant Potting Mix combines key elements plants need to thrive
- This indoor plant soil is less prone to gnats thanks to the combination of perlite, sphagnum and peat moss
- Recommended for growing beautiful, indoor houseplant varieties like pothos, spider plants, monstera, philodendron, english ivy, and more
- Certified by the Mulch & Soil Council as in compliance with industry standards
- Bundle includes two bags of Miracle-Gro Houseplant Potting Mix
Miracle-Gro Organic Indoor Potting Mix, Protects Against Over and Under Watering, for Indoor Container Plants, Houseplants and Starter Plants, OMRI Listed, 16 qt., 2-Pack
- Miracle-Gro Organic Indoor Potting Mix protects indoor plants against over and under watering
- This organic container mix is made with responsibly sourced sphagnum peat moss (one hundred percent of peat sourced from certified producers), coir, and quick-start natural fertilizer
- Use this potting medium with all types of indoor container plants, including houseplants and herbs; also great for seed starting
- To plant seeds, fill container with potting mix, follow seed package planting directions, and water; To use with transplants, partially fill container, place plant after loosening the root ball, cover with more mix pressing lightly, and water
- This bundle includes two 16 qt. bags of Miracle-Gro Organic Indoor Potting Mix; each bag fills one 12-inch container (amounts may vary based on the size of the root ball)
Miracle-Gro Organic Outdoor Potting Mix, for Outdoor Container Plants, Contains Quick-Release Natural Fertilizer, OMRI Listed, 16 qt.
- Miracle-Gro Organic Outdoor Potting Mix contains a quick-release natural fertilizer and also feeds plants for up to 2 months
- This potting mix is made with responsibly sourced peat (one hundred percent of peat sourced from certified producers)
- Use this organic potting mix with all types of outdoor container plants, including flowers, vegetables, herbs, annuals, and perennials
- To plant in pots, fill the container partially full with potting mix, place the plant in the pot after loosening the root ball, cover with more mix and water thoroughly
- One 16 qt. bag of Miracle-Gro Organic Outdoor Potting Mix fills one 12-inch container (amounts may vary based on the size of the root ball)
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
Which Miracle‑Gro potting mix is best for typical indoor houseplants like pothos or monsteras?
For most common houseplants, the Miracle‑Gro Houseplant Potting Mix (ASIN B08GYFDWHF) offers a balanced blend of perlite, sphagnum peat, and peat moss that promotes healthy root growth and reduces fungus gnats. It is pre‑fertilized, so you’ll see steady growth without needing immediate supplemental feeding. If you prefer an organic option, the Organic Indoor Potting Mix (ASIN B0DNGB724S) provides a natural fertilizer and responsibly sourced peat.
How does the Indoor Potting Mix with coconut coir differ from the standard Houseplant mix?
The Indoor Potting Mix (ASIN B09YLMPYQY) replaces peat with coconut coir, which holds water longer and releases it gradually, making it ideal for plants that prefer consistent moisture. It also omits compost and bark, reducing the likelihood of fungus gnats. The Houseplant mix includes perlite for better aeration, which can benefit plants that need excellent drainage.
What are the benefits of the Moisture Control Potting Mix for indoor use?
Miracle‑Gro Moisture Control Potting Mix (ASIN B082BPL2ZF) uses an AquaCoir formula that absorbs up to 33 % more water than regular mixes, helping prevent both over‑ and under‑watering. It also contains a built‑in fertilizer that can feed plants for up to six months, promoting larger growth. While it’s marketed for all container plants, its moisture‑retention properties make it especially useful for indoor plants that sit in low‑light conditions.
Is the Organic Indoor Potting Mix worth the extra cost compared to the regular fertilized mixes?
The Organic Indoor Potting Mix (ASIN B0DNGB724S) costs a bit more, but it provides a quick‑start natural fertilizer and uses 100 % certified peat and coir, appealing to environmentally conscious gardeners. It also protects against both over‑ and under‑watering, which can reduce the need for corrective measures. If you prioritize organic ingredients and sustainable sourcing, the added price is justified.
How do the bag sizes and coverage compare across the indoor mixes?
The Houseplant Potting Mix comes in a 4‑qt bag that fills an 8‑inch pot, while the Indoor Potting Mix and Organic Indoor Mix are sold in 16‑qt bags that each fill a 12‑inch container. The Moisture Control Mix is packaged as two 8‑qt bags, each suitable for two 8‑inch pots. Choose the size that matches the number and size of containers you plan to fill.
Which product is least likely to attract fungus gnats?
Both the Houseplant Potting Mix (ASIN B08GYFDWHF) and the Indoor Potting Mix (ASIN B09YLMPYQY) are formulated to be less prone to gnats; the former uses a perlite‑peat blend, while the latter eliminates compost and bark, common gnats habitats. The Organic Indoor Mix also reduces gnats due to its peat‑coir composition, but it does not specifically market gnat resistance. For the strongest guarantee, the Houseplant mix’s certified formulation is a safe bet.
Can I use the same potting mix for both indoor and outdoor container plants?
While the Indoor mixes (Houseplant, Indoor, Organic Indoor) are optimized for indoor environments, the Organic Outdoor Potting Mix (ASIN B0DNG75GR7) is designed for outdoor use with a quick‑release fertilizer suited to harsher conditions. Using an indoor mix outdoors may lead to faster drying and reduced nutrient availability. For best results, match the product to the plant’s growing zone.
What should I look for when choosing between a pre‑fertilized mix and an organic mix?
Pre‑fertilized mixes like the Houseplant and Moisture Control blends contain synthetic nutrients that deliver rapid growth and are convenient for beginners. Organic mixes provide natural fertilizers, often with slower release, and appeal to gardeners seeking sustainable options. Consider your plant’s nutrient needs, your preference for organic ingredients, and whether you want to add supplemental feeding later.