Comparison: Best Kellogg Organic Plus Potting Mix (Updated | Nov 11th)

But is it really the best choice out there? We dug into the details—ingredients, performance, value, and real gardener feedback—to see how it stacks up against top competitors. Whether you’re growing lush veggies or vibrant flowers, this honest comparison will help you decide if Kellogg’s Organic Plus is your garden’s new best friend or just another bag of hype. Let’s get growing!

Product Comparison: Best Kellogg Organic Plus Potting Mix

Peat-Free Organic

Back to the Roots 100% Organic Potting Mix (Value 12 Quart) | Premium Blend | Made in The USA

Back to the Roots 100% Organic Potting Mix (Value 12 Quart) | Premium Blend | Made in The USA

Back to the Roots
  • 100% Organic and Peat-Free: Our potting mix is 100% organic and peat-free—made from upcycled plant matter and wood fines from across the U.S. No imported peat, just better soil with a lighter carbon footprint.
  • All-Purpose: Our premium potting mix is versatile and well-suited for herbs, veggies, fruits, and flowers. It caters to all your gardening needs, and is proudly made in the USA.
  • Better Moisture Control and pH Balance: Our premium soil blend incorporates yucca extract for moisture control and dolomitic limestone for pH balancing.
  • 100% Satisfaction Guarantee: Not satisfied? Let us know. Our support team will get you growing with a replacement or refund—no questions asked.
  • GROWONEGIVEONE — Share a photo of your growing garden and we’ll donate a Kids Grow Kit and STEM elementary school curriculum to a classroom of your choice.

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Quick-Release Fertilizer

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, for Outdoor Container Plants, Contains Quick-Release Natural Fertilizer, OMRI Listed, 16 qt.

Miracle-Gro
  • 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)

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Water Balance Guard

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 Against Over and Under Watering, for Indoor Container Plants, Houseplants and Starter Plants, OMRI Listed, 16 qt.

Miracle-Gro
  • 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)

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Mycorrhizae Boost

Espoma Organic Potting Soil Mix – All Natural Potting Mix For All Indoor & Outdoor Containers Including Herbs & Vegetables. For Organic Gardening, 2 Cubic Foot bag. Pack of1

Espoma Organic Potting Soil Mix - All Natural Potting Mix For All Indoor & Outdoor Containers Including Herbs & Vegetables. For Organic Gardening, 2 Cubic Foot bag. Pack of1

Espoma
  • FOR USE ON: Not just an indoor potting soil, this can also be used as a potting soil for outdoor plants and is a great soil mix for vegetables, herbs & all other container plants & flowers.
  • CONTAINS: This organic soil for plants & vegetables is a rich blend of sphagnum peat moss, humus & perlite enriched with earthworm castings, alfalfa meal, kelp meal & feather meal
  • MYCO-TONE: A proprietary blend of endo & ecto mycorrhizae.
  • WHEN TO USE: Any time planting containers, whether starting a new plant or transplanting into a larger container. Plants require regular re-potting and fresh planting soil for optimum growth
  • ORGANIC GARDENING: Contains a rich blend of only the finest natural ingredients. No synthetic plant foods or chemicals are used.

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Yucca Moisture Boost

Back to the Roots 100% Organic Indoor Potting Mix (Value 12 Quart) | Promotes Healthy Houseplant Growth| Made in The USA

Back to the Roots 100% Organic Indoor Potting Mix (Value 12 Quart) | Promotes Healthy Houseplant Growth| Made in The USA

Back to the Roots
  • FORMULATED FOR INDOOR USE: Our Potting Mix contains organic yucca extract that aids in retaining moisture in the soil whichs keeps your indoor plants happy and healthy
  • ROOT-BOOSTING MYCORRHIZAE: This beneficial soil component provides your plants with a natural, organic way to boost their root development and nutrient uptake
  • ORGANIC AND PEAT-FREE: Our indoor potting mix helps reduce greenhouse emissions and environmental impact, making it a responsible choice for conscious consumers
  • BALANCING DOLOMITIC LIMESTONE: Balances the alkalinity and acidity levels of the soil, which ensures that your plants receive the necessary nutrients from the potting mix to grow healthy and strong
  • SAFE FOR PETS AND PEOPLE: Made without bark or compost, this potting mix is less prone to indoor gnats and pests, making it a worry-free option for your indoor gardening needs

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Value Pack Indoor

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 Against Over and Under Watering, for Indoor Container Plants, Houseplants and Starter Plants, OMRI Listed, 16 qt., 2-Pack

Miracle-Gro
  • 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)

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Biochar Power Soil

Wakefield Premium Biochar Blend – Organic Potting Soil for Vegetables, Tomatoes & Gardens – Potting Mix Enriched with Humic Acid & CarbonBoost – Versatile Top Soil for Indoor & Outdoor Plants-2quarts

Wakefield Premium Biochar Blend – Organic Potting Soil for Vegetables, Tomatoes & Gardens – Potting Mix Enriched with Humic Acid & CarbonBoost – Versatile Top Soil for Indoor & Outdoor Plants-2quarts

Wakefield Biochar
  • Engineered for Superior Garden Performance: Wakefield’s premium potting soil with biochar, for outdoor plants with Humic acid, and our proprietary CarbonBoost technology, delivering optimal conditions for vibrant, sustained growth. Ideal for everything from raised beds to patio containers, this advanced formula supports healthy root systems whether you’re cultivating juicy tomatoes or leafy herbs.
  • Enhanced Root Health and Nutrient Absorption: Formulated as a powerful soil amendment and effective soil conditioner, this advanced biochar blend supports healthy microbial ecosystems for optimized nutrient uptake and improved aeration. Whether you’re cultivating hardy vegetables or delicate herbs, it strengthens root development and enhances long-term fertility. Perfect for gardeners looking to elevate top soil for garden quality or enrich topsoil for vegetable garden beds.
  • Smart Water Retention Meets Drainage Balance: Designed with advanced hydration control, this organic vegetable soil helps maintain ideal moisture levels while preventing overwatering. A great fit for container gardening and raised beds, it also works as a reliable soil mixer for sensitive environments. Use it indoor or outdoor, this blend functions beautifully as potting soil for plants.
  • 100% Organic, Eco-Conscious Formula: Crafted without synthetic additives, this blend provides a sustainable, chemical-free base for clean cultivation. Ideal for anyone growing vegetables and herbs at home. It performs exceptionally as a gardening soil for vegetables and supports vibrant harvests. Whether you’re using it as a nutrient-rich indoor soil potting mix or as dependable outdoor potting soil, it delivers lasting results.
  • Versatile, All-Purpose Growing Medium: From raised beds to balcony containers, this blend adapts effortlessly to diverse planting styles. Whether you’re cultivating with potting soil for outdoor plants, enriching topsoil in open plots, or managing delicate herbs indoors, Wakefield delivers consistent performance. It’s equally effective as indoor plant soil and supports lush growth in compact setups requiring high-quality indoor potting soil.

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Big Outdoor Mix

Miracle-Gro Organic Outdoor Potting Mix, for Outdoor Container Plants, Contains Quick-Release Natural Fertilizer, OMRI Listed, 25 qt.

Miracle-Gro Organic Outdoor Potting Mix, for Outdoor Container Plants, Contains Quick-Release Natural Fertilizer, OMRI Listed, 25 qt.

Miracle-Gro
  • 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 25 qt. bag of Miracle-Gro Organic Outdoor Potting Mix fills three 10-inch containers (amount may vary based on the size of the root ball)

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Outdoor Bundle Deal

Miracle-Gro Organic Outdoor Potting Mix, for Outdoor Container Plants, Contains Quick-Release Natural Fertilizer, OMRI Listed, 16 qt., 2-Pack

Miracle-Gro Organic Outdoor Potting Mix, for Outdoor Container Plants, Contains Quick-Release Natural Fertilizer, OMRI Listed, 16 qt., 2-Pack

Miracle-Gro
  • 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
  • This bundle includes two 16 qt. bags of Miracle-Gro Organic Outdoor Potting Mix; each fills one 12-inch container (amounts may vary based on the size of the root ball)

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Buying Guide

Buying Guide: Best Kellogg Organic Plus Potting Mix

Ingredients & Sustainability

  • Look for peat‑free or responsibly sourced peat blends
  • Check for organic certifications and USDA verification
  • Prefer mixes that use recycled plant material or biochar
  • Consider the carbon footprint of the production process

Moisture Management

  • Evaluate the presence of moisture‑retaining agents such as yucca extract or coir
  • Assess pH‑balancing components like dolomitic limestone
  • Ensure the mix offers good drainage to prevent root rot
  • Look for additives that reduce indoor gnats and fungal growth

Nutrient Profile

  • Identify quick‑release natural fertilizers for immediate feeding
  • Check for slow‑release nutrients that support growth for 2‑3 months
  • Consider the inclusion of mycorrhizae or kelp meal for root health
  • Verify that the mix is suitable for both indoor houseplants and outdoor containers

Application & Compatibility

  • Confirm the mix works for a range of plants: herbs, vegetables, flowers, and houseplants
  • Review recommended container sizes and fill ratios per bag weight
  • Look for clear planting instructions for seeds, transplants, and mature plants
  • Ensure the product is safe for pets and children

Packaging & Value

  • Compare bag sizes (e.g., 12‑qt, 16‑qt, 25‑qt) against the number of containers they fill
  • Check for bulk bundles that offer cost savings per quart
  • Look for resealable packaging to maintain freshness after opening
  • Consider any added benefits such as satisfaction guarantees or donation programs

FAQs

What should I look for when choosing an organic potting mix for indoor plants?

Focus on moisture control, pH balance, and the presence of mycorrhizae or other root‑boosting additives. A peat‑free formula, like Back to the Roots, reduces carbon footprint and often resists indoor gnats. Also check for pet‑safe ingredients and a satisfaction guarantee for added peace of mind.

How does Back to the Roots 100% Organic Indoor Mix compare to Miracle‑Gro Organic Indoor Mix?

Back to the Roots uses a peat‑free blend with yucca extract and dolomitic limestone for balanced pH, while Miracle‑Gro relies on peat, coir, and a quick‑release natural fertilizer. The former emphasizes sustainability and mycorrhizal inoculation, whereas the latter focuses on immediate nutrient release for up to two months. Both are suitable for houseplants, but Back to the Roots may be better for eco‑conscious growers.

Is there a benefit to choosing a potting mix with mycorrhizae like Espoma’s blend?

Yes, mycorrhizal fungi form a symbiotic relationship with plant roots, improving nutrient uptake and drought resistance. Espoma’s mix includes a proprietary Myco‑Tone blend, which can enhance growth for both indoor and outdoor containers. This added biological component often justifies a slightly higher price point.

Which organic mix offers the best value for larger outdoor containers?

Miracle‑Gro Organic Outdoor Mix provides a quick‑release fertilizer and fills larger containers efficiently; the 25 qt bag can cover three 10‑inch pots. If you need more volume, the two‑bag bundles give flexibility while still delivering a two‑month nutrient feed. For gardeners prioritizing sustainability, Back to the Roots offers a peat‑free alternative, though you may need more bags to match the coverage.

How important is the peat source in these mixes?

Responsibly sourced peat, as noted by Miracle‑Gro, ensures the peat comes from certified producers that manage peatlands sustainably. However, peat‑free options like Back to the Roots reduce reliance on peat altogether, lowering environmental impact. If peat sustainability is a priority, verify the product’s sourcing claims before purchase.

Can I use the same potting mix for both indoor and outdoor plants?

While many mixes are versatile, indoor-specific formulas (e.g., Back to the Roots Indoor Mix) are designed to minimize pests and improve moisture retention in enclosed spaces. Outdoor mixes often contain faster‑acting fertilizers and may include peat, which can be too heavy for indoor use. For best results, match the mix to the plant’s growing environment.

What added features should I consider for long‑term garden health?

Look for blends that include organic nutrients, pH‑balancing agents like dolomitic limestone, and biological inoculants such as mycorrhizae or biochar. Products like Wakefield’s Biochar Blend add humic acid and carbon‑boost technology for superior soil structure and water retention. These enhancements can improve root development and reduce the need for frequent re‑fertilizing.

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