Comparison: Best Kellogg Potting Mix (Updated | Nov 11th)
But with so many options, how do you know which one truly delivers? We’ve dug deep (pun intended) to compare the top contenders, testing for moisture retention, nutrient content, and root support. Whether you’re growing lush tomatoes or delicate herbs, we’ll help you find the perfect Kellogg mix that’ll have your garden thriving in no time. Let’s break down what really matters in the bag.
- Best for gnat-resistant blend: Miracle-Gro Houseplant Potting Mix: Fertilized
- Best for aquacoir water guard: Miracle-Gro Moisture Control Potting Mix
- Best for growth-boost mix: Miracle-Gro Potting Mix
- Best for organic outdoor boost: Miracle-Gro Organic Outdoor Potting Mix
- Best for indoor water balance: Miracle-Gro Organic Indoor Potting Mix
- Best for rapid root starter: Miracle-Gro Seed Starting Potting Mix
- Best for gnat-resistant indoor: Miracle-Gro Indoor Potting Mix
- Best for water-saving formula: Pro-Mix Potting 2CF
- Best for all-purpose growth: Miracle-Gro Potting Mix
Product Comparison: Best Kellogg Potting Mix
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 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 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)
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 Seed Starting Potting Mix, 8 Quarts (Pack of 2), For Use in Containers

- Specially formulated for fast root development
- Enriched with Miracle-Gro Plant Food
- Excellent for starting cuttings
- Use when starting from seed and with leaf, stem or root cuttings
- This bundle includes two 8 qt. bags of Miracle-Gro Seed Starting Potting Mix
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)
Pro-Mix Potting 2CF, 2 Cubic ft, 2 Count (Pack of 1)

- Helps save on water
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)
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
What should I consider when choosing a potting mix for indoor houseplants?
Look for a blend that balances water retention with aeration, such as mixes that include perlite, peat moss, or coconut coir. A formulation that reduces fungus gnats, like the Miracle‑Gro Houseplant Potting Mix, can keep your indoor garden healthier. Also check if the mix contains a built‑in fertilizer to feed plants for several months, which adds value and convenience.
How does the Miracle‑Gro Moisture Control Potting Mix differ from the standard Indoor Potting Mix?
Moisture Control uses an AquaCoir formula that absorbs up to 33% more water and includes a wetting agent, helping prevent both over‑ and under‑watering. The standard Indoor Mix relies on coconut coir and perlite for drainage but doesn’t have the same water‑holding technology. Both provide up to six months of feeding, but Moisture Control may be better for beginners who worry about watering frequency.
Is an organic potting mix worth the extra cost for my outdoor containers?
Organic mixes like Miracle‑Gro Organic Outdoor and Indoor blends use responsibly sourced peat and coir, and they include natural, quick‑release fertilizers. They are typically priced higher than conventional mixes, but they appeal to gardeners seeking sustainable options and may improve soil health over time. If you value eco‑friendly ingredients and plan to reuse the mix, the added cost can be justified.
Which potting mix provides the best value for large‑scale planting projects?
For covering many containers, the 16‑qt bundles of Miracle‑Gro Potting Mix (indoor or outdoor) or the Pro‑Mix Potting 2CF (2 cubic ft) give the most soil per dollar. These mixes feed plants for up to six months and promote larger growth, reducing the need for supplemental fertilizer. Compare unit price per cubic foot to determine the most economical choice.
Can I use a seed‑starting mix for mature houseplants?
Seed‑starting mixes, such as Miracle‑Gro Seed Starting Potting Mix, are formulated for rapid root development and are very fine‑textured. While they work well for seedlings and cuttings, they may retain too much moisture for mature plants, increasing the risk of root rot. It’s best to switch to a regular indoor or moisture‑control mix once seedlings have established true leaves.
How important is the built‑in fertilizer in these mixes?
A built‑in fertilizer can simplify plant care by delivering nutrients for up to six months, which is especially helpful for busy gardeners. Mixes like Miracle‑Gro Indoor, Moisture Control, and standard Potting Mix all claim six‑month feeding periods, whereas the organic options provide a shorter two‑month feed but use natural sources. Evaluate how often you want to add supplemental fertilizer when choosing a mix.
What are the key features to compare when selecting between the indoor and outdoor Miracle‑Gro mixes?
Indoor mixes prioritize pest resistance and water balance, often including perlite and peat moss to deter gnats, while outdoor mixes focus on durability and nutrient release for harsher conditions. The organic versions emphasize sustainable peat sourcing and natural fertilizers, whereas the standard blends use synthetic nutrients for faster growth. Consider the plant type, location, and your preference for organic versus conventional formulations.
