Comparison: Best Miracle Gro Garden Bed Soil (Updated | Nov 11th)
If you’ve ever dreamed of a lush, thriving garden but weren’t sure where to start, the right soil can make all the difference—and Miracle-Gro garden bed soils are a go-to for many home gardeners. In this comparison, we’ll break down the top contenders, weighing nutrients, texture, and real-world results to help you pick the best fit for your garden’s needs—because great soil shouldn’t be a guessing game.
- Best for organic quick-feed: Miracle-Gro Organic Outdoor Potting Mix
- Best for peat-free garden: Miracle-Gro Organic Raised Bed & Garden Soil with Quick Release Natural Fertilizer
- Best for six-month boost: Miracle-Gro Potting Mix
- Best for large-scale mix: Miracle-Gro Organic Outdoor Potting Mix
- Best for versatile potting: Miracle-Gro Potting Mix
- Best for eco raised bed: Miracle-Gro Organic Raised Bed and Garden Soil with Quick Release Natural Fertilizer
- Best for expandable soil mix: Miracle-Gro Expand ‘n Gro Concentrated Planting Mix
- Best for moisture control: Miracle-Gro Moisture Control Potting Mix
- Best for gnat-resistant mix: Miracle-Gro Houseplant Potting Mix: Fertilized
- Best for all-purpose peat: Michigan Peat 40 Pound Bag Garden Magic Organic Planting Potting Top Soil Blend Mix for Indoor and Outdoor Gardening and Landscapes
Product Comparison: Best Miracle Gro Garden Bed Soil
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 Raised Bed & Garden Soil with Quick Release Natural Fertilizer, Peat Free, 1 cu. ft., 2-Pack
- Miracle-Gro Organic Raised Bed & Garden Soil is a soil blend with quick release natural fertilizer
- Feeds plants for up to 2 months
- This organic soil blend is peat free and formulated with upcycled green waste
- Successful Organic Gardening Made Attainable
- This bundle includes two 1 cu. Ft. bags of Miracle-Gro Organic Raised Bed & Garden Soil
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, 25 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 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)
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 Organic Raised Bed and Garden Soil with Quick Release Natural Fertilizer, Peat Free, OMRI Listed, 1 cu. ft
Miracle-Gro Expand ‘n Gro Concentrated Planting Mix, Just Add Water for up to 3X Expansion, For Container and In-Ground Use, .33 cu. ft. Expands up to 1 cu. ft.
- Miracle-Gro Expand ‘n Gro Concentrated Planting Mix expands up to 3X when combined with water
- This planting soil substitute feeds plants for up to 6 months
- When used with potted plants, this potting medium’s all natural fibers hold up to 50% more water than traditional potting mix and release it as plants needs it
- Apply this soil amendment to in-ground gardens to make your soil up to 40% lighter and create up to 90% more air space for plant roots to thrive
- One .33 cu. ft. bag of Miracle-Gro Expand ‘n Gro Concentrated Planting Mix fills two 12-inch containers or covers 4 sq. ft. of in-ground area
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 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
Michigan Peat 40 Pound Bag Garden Magic Organic Planting Potting Top Soil Blend Mix for Indoor and Outdoor Gardening and Landscapes, White
- Ready-to-Use for All Planting Needs: This general-purpose potting mix is ready to use out of the bag, making it perfect for both indoor and outdoor planting without any additional preparation
- Optimal Moisture Retention & Drainage: Designed to allow excess water to drain effectively while retaining moisture, promoting healthy plant growth during dry seasons
- High-Quality Soil Blend: Features a dark blend of reed sedge peat, perlite, and sand, offering the best conditions for plant health and soil structure
- Perfect for All Gardeners: Developed for both new and experienced home gardeners, this soil mix enhances plant growth in various environments and gardening projects
- Improves Soil Quality: Ideal for loosening heavy clay soils and enhancing moisture in light soils, making it perfect for use as a top dressing to fill holes in lawns and garden beds
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’s the main difference between the organic potting mixes and the standard Miracle‑Gro potting mixes?
Organic mixes, like the Organic Outdoor Potting Mix and Organic Raised Bed Soil, use a quick‑release natural fertilizer and are peat‑free or sourced from certified peat producers, while the standard mixes rely on synthetic fertilizers for longer feeding periods. The organic formulas are designed for gardeners who prefer environmentally friendly ingredients, whereas the regular mixes aim for rapid growth and larger blooms. Both feed plants for up to two months (organic) or six months (standard), but the nutrient source and sustainability profile differ.
Which product should I choose for a raised‑bed garden versus container gardening?
For raised‑bed gardens, the Miracle‑Gro Organic Raised Bed & Garden Soil (two 1 cu ft. bags) is formulated to improve soil structure and provide a peat‑free, up‑cycled blend ideal for in‑ground use. For container gardening, the Organic Outdoor Potting Mix (16 qt. or 25 qt. bags) or the regular Miracle‑Gro Potting Mix (two 16 qt. bags) are better suited, offering quick‑release fertilizer and easy fill rates for 10‑12 inch pots.
How do the coverage and container‑size recommendations compare across the potting mixes?
A 16 qt. bag of either the Organic Outdoor Potting Mix or the regular Potting Mix fills one 12‑inch container, while a 25 qt. bag of the larger Organic Outdoor Mix can fill three 10‑inch containers. The 8 qt. Moisture Control Mix covers two 8‑inch pots, and the 4 qt. Houseplant Mix is sized for a single 8‑inch indoor container. These guidelines help you estimate how many bags you’ll need based on pot dimensions.
Is the Moisture Control Potting Mix worth the extra cost compared to regular potting soil?
Moisture Control includes an AquaCoir formula that absorbs up to 33 % more water and protects against over‑ and under‑watering, which can reduce watering frequency and improve plant health. If you live in a hot, dry climate or tend to forget watering schedules, the added water‑retention benefits may justify the higher price. For occasional gardeners who water regularly, the standard mix provides comparable nutrition at a lower cost.
What are the benefits of the Expand ’n Gro Concentrated Planting Mix versus buying pre‑mixed soil?
Expand ’n Gro is a compact, concentrated mix that expands up to three times when water is added, allowing you to cover larger areas with less storage space. It also improves soil aeration by up to 90 % and holds 50 % more water than traditional mixes, making it ideal for in‑ground gardens or large raised beds. However, it requires an extra mixing step, so if you prefer a ready‑to‑use product, the pre‑mixed potting soils may be more convenient.
How important is the peat source in the Organic Outdoor Potting Mix?
The Organic Outdoor Potting Mix uses 100 % responsibly sourced peat from certified producers, which helps ensure sustainable harvesting and reduces environmental impact. For gardeners concerned about peat depletion, this certification provides assurance of ethical sourcing. If peat‑free options are a priority, the Organic Raised Bed Soil offers a peat‑free formula made from up‑cycled green waste.
Can I use the same potting mix for both indoor houseplants and outdoor containers?
While many mixes work for both environments, the Houseplant Potting Mix is specially formulated with perlite and a lower peat content to reduce gnats and improve drainage for indoor plants. Outdoor containers benefit from the Organic Outdoor Mix or regular Potting Mix, which contain more nutrients for vigorous growth in harsher conditions. Matching the mix to the plant’s setting can optimize health and reduce pest issues.
Which product gives the best value for a large vegetable garden?
For a sizable vegetable garden, the Expand ’n Gro Concentrated Planting Mix offers the most coverage per bag, expanding to fill multiple 12‑inch containers or 4 sq ft of in‑ground area. Pairing it with the Organic Raised Bed Soil for raised‑bed sections provides nutrient‑rich, peat‑free soil that supports vegetable growth. Combining these two products balances cost efficiency with soil quality for a high‑yield garden.