Comparison: Best Miracle Gro Organic Container Soil (Updated | Nov 11th)

If you’re growing veggies, herbs, or flowers in containers, the right soil can make all the difference—and Miracle Gro’s organic options are turning heads. But with a few variations on the shelf, how do you know which one truly delivers? We’ve dug into the details (literally) to compare the **best Miracle Gro organic container soil**s side by side. Let’s find your container garden’s new best friend.

Editor’s Choice

Best for a specific purpose

Product Comparison: Best Miracle Gro Organic Container Soil

Quick-Release Outdoor

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)

Check price

Outdoor Bundle

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)

Check price

Big Outdoor Pack

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)

Check price

Water‑Smart Indoor

Miracle-Gro Organic Indoor Potting Mix, Protects Against Over and Under Watering, for Indoor Container Plants, Houseplants and Starter Plants, OMRI Listed, 8 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, 8 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 8 qt. bags of Miracle-Gro Organic Indoor Potting Mix; each bag fills two 8-inch containers (amounts may vary based on the size of the root ball)

Check price

Bounty Boost

Miracle-Gro Performance Organics All Purpose Container Mix with Natural and Organic Ingredients, Feeds Container Grown Vegetables, Flowers and Herbs for up to 3 Months, 1 cu. ft.

Miracle-Gro Performance Organics All Purpose Container Mix with Natural and Organic Ingredients, Feeds Container Grown Vegetables, Flowers and Herbs for up to 3 Months, 1 cu. ft.

Miracle-Gro
  • Organic Goodness: Grow vibrant flowers, herbs, and veggies with Miracle-Gro Performance Organics All Purpose Container Mix made with organic and natural ingredients, like aged compost, for the spectacular results you expect
  • Bountiful Harvests: Get twice the bounty versus unfed plants for more container-grown vegetables, flowers, and herbs
  • How to Use: Perfect for all your indoor and outdoor container gardening, simply fill your favorite pots with this potting soil and watch your flowers, vegetables, and herbs thrive
  • Nourish: This premium organic container soil provides continuous plant nutrition for up to 3 months, helping your potted plants flourish
  • Trusted Results: Grow confidently with this OMRI Listed container mix that gives you the Miracle-Gro results you love with the organic and natural ingredients you want

Check price

Indoor Bulk 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 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)

Check price

Single Indoor 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.

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)

Check price

6‑Month Feed

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, For Container Plants, Flowers, Vegetables, Annuals, Perennials, Shrubs, Feeds for up to 6 Months, 16. qt., 2-Pack

Miracle-Gro
  • 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)

Check price

Compact Bounty

Miracle-Gro Performance Organics All Purpose Container Mix, 6 qt. – Organic, All Natural Plant Soil – Feed for up to 3 Months – All-Purpose Formula for Vegetables, Flowers and Herbs

Miracle-Gro Performance Organics All Purpose Container Mix, 6 qt. - Organic, All Natural Plant Soil - Feed for up to 3 Months - All-Purpose Formula for Vegetables, Flowers and Herbs

Miracle-Gro
  • Container mix feeds your indoor and outdoor container plants all season (up to 3 months)
  • Miracle-Gro Performance Organics All Purpose Container Mix delivers twice the bounty – more vegetables, flowers and herbs – with organic and natural ingredients (vs unfed plants)
  • An all purpose formula for indoor and outdoor container gardening
  • Blended with aged compost
  • Enjoy Miracle-Gro results with organic and natural ingredients; OMRI Listed for organic use

Check price

Family‑Size Bounty

Miracle-Gro Performance Organics All Purpose Container Mix, 16 qt. – Organic, All Natural Plant Soil – Feed for up to 3 Months – All-Purpose Formula for Vegetables, Flowers and Herbs

Miracle-Gro Performance Organics All Purpose Container Mix, 16 qt. - Organic, All Natural Plant Soil - Feed for up to 3 Months - All-Purpose Formula for Vegetables, Flowers and Herbs

Miracle-Gro
  • Organic container mix feeds your indoor and outdoor container plants all season (up to 3 months)
  • Miracle-Gro Performance Organics All Purpose Container Mix delivers twice the bounty – more vegetables, flowers and herbs – with organic and natural ingredients (vs unfed plants) Screen reader support enabled.
  • An all purpose formula give indoor and outdoor container plants a great boost Screen reader support enabled.
  • Blended with aged compost
  • Enjoy Miracle-Gro results with organic and natural ingredients; OMRI Listed for organic use

Check price

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

Buying Guide: Best Miracle Gro Organic Container Soil

Container Size & Coverage

  • Check the bag volume (e.g., 8 qt, 16 qt, 25 qt) to match your pot dimensions
  • Larger bags often cover multiple 8‑12 inch containers, reducing refill frequency
  • Consider whether the mix is designed for single‑pot use or bulk planting

Nutrient Release & Feeding Duration

  • Quick‑release natural fertilizer typically feeds plants for up to 2 months
  • Performance Organics formulas provide continuous nutrition for up to 3 months
  • Longer feeding periods mean fewer re‑applications and steadier growth

Organic Certification & Ingredients

  • All listed mixes are OMRI‑listed, confirming compliance with organic standards
  • Key ingredients include responsibly sourced peat, coir, and aged compost
  • Look for blends that combine peat moss with sustainable fibers for better aeration

Indoor vs Outdoor Use

  • Indoor mixes often contain water‑retention agents to protect against over‑ and under‑watering
  • Outdoor mixes are formulated for exposure to weather and root expansion
  • Choose a product based on the primary growing environment of your plants

Value Packs & Cost Efficiency

  • Bundle options (e.g., two 16 qt bags) lower per‑quart cost and simplify storage
  • Consider the number of containers each bag can fill to gauge overall value
  • Higher‑capacity bags (25 qt) are ideal for larger gardens or multiple plantings

FAQs

What should I consider when choosing between outdoor and indoor potting mixes?

Look at where you’ll be growing your plants: outdoor mixes are formulated with peat and a quick‑release natural fertilizer for harsher conditions, while indoor mixes include coir and moisture‑regulating additives to protect against over‑ and under‑watering. Check the recommended plant types—outdoor mixes suit flowers, vegetables, herbs, and perennials, whereas indoor mixes are ideal for houseplants and seed starting. Also verify that the product is OMRI‑listed if you need certified organic soil for indoor use.

How do the different bag sizes affect value and coverage?

Larger bags, such as the 25 qt outdoor mix, can fill three 10‑inch containers and usually offer a lower cost per quart than smaller 16 qt bags. Bundle packs (e.g., two 16 qt bags) provide convenience and often a modest discount compared to buying single bags. Match the bag size to the number and size of containers you plan to fill to avoid waste.

Is there a performance difference between the standard Miracle‑Gro potting mix and the Performance Organics line?

The standard mix feeds plants for up to six months and is a conventional formulation, while Performance Organics uses aged compost and organic ingredients to deliver nutrition for up to three months with a focus on organic certification. Performance Organics promises roughly twice the harvest compared to unfed plants, emphasizing natural growth and OMRI listing. Choose Performance Organics if you prefer an all‑organic blend with comparable results.

What are the benefits of the quick‑release natural fertilizer included in the organic mixes?

The quick‑release fertilizer provides nutrients immediately after planting, supporting rapid root development and early growth. It continues to feed plants for up to two months in the outdoor mixes and up to three months in the Performance Organics blends, reducing the need for additional feeding. This convenience helps maintain consistent plant health throughout the growing season.

How important is the responsibly sourced peat claim?

Responsibly sourced peat means the peat comes from certified producers that follow sustainable harvesting practices, minimizing environmental impact. Both indoor and outdoor organic mixes highlight 100 % certified peat, which is reassuring for eco‑conscious gardeners. If peat sustainability is a priority, look for this certification on the product label.

Should I buy a bundle pack or individual bags for my garden?

Bundle packs are cost‑effective if you have multiple containers or plan to garden throughout the season, as they reduce packaging waste and often include a small price discount. Individual bags give flexibility for smaller projects or trial runs without excess soil. Assess your planting volume and storage space to decide which option offers the best value.

Can I use the indoor potting mix for outdoor containers?

While the indoor mix will work outdoors, it’s formulated with coir and moisture‑control features that are most beneficial for indoor environments. Outdoor mixes contain a higher proportion of peat and are designed to handle exposure to rain and temperature fluctuations. For optimal results, match the mix to the growing environment.

Similar Posts