Comparison: Best Organic All Purpose Potting Soil (Updated | Nov 11th)
If you’ve ever stood in the gardening aisle, overwhelmed by bags of potting soil promising miracles, you’re not alone. Choosing the best organic all-purpose potting soil shouldn’t feel like decoding a science experiment. Whether you’re growing herbs on a windowsill or tomatoes in a raised bed, the right mix makes all the difference. Let’s break down what really matters—and which soils truly deliver lush, healthy growth—naturally.
- Best for peat-free blend: Back to the Roots 100% Organic Potting Mix (Value 12 Quart) | Premium Blend | Made in The USA
- Best for quick-release fertilizer: Miracle-Gro Organic Outdoor Potting Mix
- Best for mycorrhizae boost: Espoma Organic Potting Soil Mix – All Natural Potting Mix For All Indoor & Outdoor Containers Including Herbs & Vegetables. For Organic Gardening
- Best for moisture-retaining blend: LGM Soil All-Purpose Potting Soil Mix – Organic Houseplant Soil – Natural Potting Mix for Indoor & Outdoor Plants – Potting Soil for Gardening – Ideal for Rooting Cuts & Germinating Seeds (0.5 Cu Ft)
- Best for three-month feed: Miracle-Gro Performance Organics All Purpose Container Mix with Natural and Organic Ingredients
- Best for water balance guard: Miracle-Gro Organic Indoor Potting Mix
- Best for coco coir boost: WONDER SOIL Organic Potting Soil | Ready to Plant Coco Coir Fully Loaded with Nutrients | 3 LBS Bag Expands to 12 Quarts of Indoor Outdoor Soil for Gardens & Plants | Incl Worm Castings
- Best for garden bed essential: Espoma Organic All-Purpose Garden Soil Natural and Organic in Ground Planting Mix. Use when Planting & Transplanting. For Organic gardening. 1 Cubic Foot Bag
- Best for expanding coir: Back to the Roots Organic Coir
- Best for super nutrient soil: Compressed Organic Potting Soil for Garden
Product Comparison: Best Organic All Purpose Potting Soil
Back to the Roots 100% Organic Potting Mix (Value 12 Quart) | Premium Blend | Made in The USA
- 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.
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)
Espoma Organic Potting Soil Mix – All Natural Potting Mix For All Indoor & Outdoor Containers Including Herbs & Vegetables. For Organic Gardening, 8qt. bag. Pack of 1
- 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.
LGM Soil All-Purpose Potting Soil Mix – Organic Houseplant Soil – Natural Potting Mix for Indoor & Outdoor Plants – Potting Soil for Gardening – Ideal for Rooting Cuts & Germinating Seeds (0.5 Cu Ft)
- ALL-NATURAL INGREDIENTS: LGM Soil All-Purpose Potting Soil Mix is crafted from composted forest products, wood fines, perlite, sphagnum peat moss, and a mix of beneficial microbes, providing optimal nutrition for indoor and outdoor plants, including houseplants, vegetables, and herbs.
- VERSATILE USE: This premium potting soil mix is ideal for both indoor and outdoor gardening. Whether you’re planting flowers, shrubs, or trees, rooting cuts, or germinating seeds, LGM Soil provides an ideal growing medium for all types of plants and garden soil for outdoor plants.
- PROMOTES HEALTHY GROWTH: The inclusion of chicken manure, volcanic ash, gypsum, feather meal, soy meal, and kelp meal in LGM Soil ensures strong root development and robust plant health. Ideal for indoor plant soil, potting soil for indoor plants, and outdoor potting soil for flowers and vegetables.
- RETAINS MOISTURE: LGM Soil’s unique blend conserves water by reducing moisture loss due to evaporation, making it an excellent choice for indoor potting soil for house plants, indoor plant soil, & outdoor potted plants. Your plants stay hydrated longer, reducing the need for frequent watering.
- READY TO USE: This all-purpose potting soil is pre-moistened and ready to use straight out of the bag. It comes in a convenient small bag size, making it easy to handle and ideal for potting soil indoor plants small bag needs, as well as for indoor and outdoor gardening, from houseplants to vegetables.
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.
- 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
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)
WONDER SOIL Organic Potting Soil | Ready to Plant Coco Coir Fully Loaded with Nutrients | 3 LBS Bag Expands to 12 Quarts of Indoor Outdoor Soil for Gardens & Plants | Incl Worm Castings, Perlite
- NUTRIENT RICH & INDOOR/OUTDOOR FAST GERMINATION… Wonder Soil Premium Organic Potting Soil Mix is the only dry compressed coco coir mix with added amendments of worm castings, mycorrhizae, kelp, perlite and more! Grow your plants faster with stronger roots! Peat free, all natural, family and pet safe!
- A LITTLE DOES A LOT… your little BIG bag of compressed indoor potting soil & garden soil for outdoor plants expands to 4 TIMES THE SIZE when mixed with water; easy to carry & saves vital shed space.
- PRE-MIXED & READY TO USE ORGANIC POTTING MIX … Pre-mixed and ready to use organic potting soil and garden soil mix to help make your gardening or hobby growing a breeze. Simply transplant your desired plants into their new container and add our soil mix or pour our soil mix and plant your seeds.
- WATER RETENTION & DRAINAGE… Coco coir has excellent water retention with dependable drainage and aeration in the root zone. Save up to 50% of water, fertilizer, and seed!
- HEAVY DUTY RESEALABLE BAG… Use what you need and save the rest for later! Keeping your planting soil dry and safe!
Espoma Organic All-Purpose Garden Soil Natural and Organic in Ground Planting Mix. Use when Planting & Transplanting. For Organic gardening. 1 Cubic Foot Bag
- FOR USE: Use when planting or transplanting to improve native soil. For everything you plant in the garden or landscape
- CONTAINS: This organic All-Purpose Garden soil mix is a rich blend of natural and organic ingredients enriched with earthworm castings
- MYCO-TONE: A proprietary blend of endo & ecto mycorrhizae
- WHEN / HOW TO USE: Any time planting in the garden; simply mix thoroughly with native garden soils
- ORGANIC GARDENING: Contains a rich blend of only the finest natural ingredients. No synthetic plant foods or chemicals are used
Back to the Roots Organic Coir, 51 Quart Expanding Soil, Great for Seeds and Potting
- A balanced pH, which means it’s truly all-purpose. Use alone or as an amendment for anything in a pot or in the ground — vegetables, flowers, herbs, and even starting seeds.
- Expands to over 2 cubic feet
- Peat Free OMRI Listed, assuring organic production, handling, and processing
- 100% SATISFACTION GUARANTEE: If you are not satisfied or have any issues with this Organic Coconut Coir, just shoot us a note and our dedicacted customer support team will make sure we get you growing or send you a refund/replacement.
- GROWONEGIVEONE — Share a photo of your growing garden and we’ll donate a Grow Kit and STEM elementary school curriculum to a classroom of your choice.
Compressed Organic Potting Soil for Garden, Plants & Vegetables – Expands 4x When Mixed with Water – Indoor or Outdoor Use – Plant Food Mix Derived from Natural Coconut Coir & Worm Castings Fertilizer
- A LITTLE DOES A LOT – Easy to use compressed soil granules quickly expand up to 4X and make up to 3 gallons of soil. Light, compact, easy to carry, resealable bag saves space.
- NOURISH & SEE THEM FLOURISH – Packed with every essential nutrient plus 55+ trace minerals, this concentrated super soil feeds and grows strong beautiful vibrant plants better than ever!
- FAST ACTING & LONG LASTING – Easy to wet and stays moist 3X longer. Living soil gets water, air and nutrients to roots on demand. Perfect for all seeds, starts, transplants, containers, raised beds and gardens!
- TRULY ORGANIC YOU CAN TRUST – 100% natural ground coconut coir, worm castings, compost, humic acids, amino acids, kelp and beneficial GroBiotics including mycorrhizae give your soil, flower, vegetable, herb, fruit, tree, shrub, raised bed, outdoor or indoor potted house plants and more a super-boost.
- EASY to USE – Just add water 1:1 to compressed soil to expand up to 4X. Use 1 tsp for small seeds, 1 tbsp for large seeds, 1/4 cup per seedling, 1 cup per small plant, and 4 cups per gallon plant. Use expanded soil straight or blend 1:2 with other soil. Prevents overwatering, re-wets easily, and stays moist 3X longer. As mulch or top dress, apply 1/4 inch expanded soil or spread compressed soil and water. A 2 lb bag covers up to 20 sq ft.
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Buying Guide
FAQs
What should I look for when choosing an organic all‑purpose potting mix?
Key factors include whether the mix is peat‑free, the presence of moisture‑regulating ingredients, and any added nutrients or microbes. Look for a balanced pH, good drainage, and certifications like OMRI for organic integrity. Also consider the size of the bag and whether the soil is pre‑moistened for convenience.
How do peat‑free options compare to peat‑based mixes?
Peat‑free blends, such as those using upcycled plant matter, wood fines, or coconut coir, have a lighter carbon footprint and often provide better aeration. Peat‑based mixes can hold more water initially but may require more frequent watering and have sustainability concerns. Choose peat‑free if you prioritize eco‑friendliness and faster drying.
Which mix offers the best moisture control for indoor plants?
Back to the Roots 100% Organic Potting Mix includes yucca extract for moisture regulation and dolomitic limestone for pH balance, making it excellent for indoor use. LGM Soil’s blend retains moisture longer thanks to its combination of perlite and composted forest products. Both options reduce the risk of over‑watering while keeping roots hydrated.
Are there mixes that include built‑in fertilizer, and how long does it last?
Miracle‑Gro Organic Outdoor Potting Mix and Miracle‑Gro Performance Organics All‑Purpose Container Mix both contain quick‑release natural fertilizers that feed plants for up to two and three months respectively. These mixes are convenient for gardeners who want sustained nutrition without frequent feeding. For longer‑term feeding, consider blends with slow‑release organic meals like kelp and feather meal.
How do added microbes or mycorrhizae affect plant health?
Products like Espoma Organic Potting Soil Mix and Espoma Organic All‑Purpose Garden Soil include proprietary Myco‑Tone blends of endo‑ and ecto‑mycorrhizae, which improve root absorption of water and nutrients. The beneficial microbes in LGM Soil and Wonder Soil also promote healthier root systems and disease resistance. These biological additives can boost growth, especially in nutrient‑poor soils.
What is the value difference between larger bulk bags and smaller pre‑moistened bags?
Bulk bags such as the 12‑quart Back to the Roots mix or 16‑quart Miracle‑Gro containers provide a lower cost per cubic foot but require you to add water and sometimes mix in amendments. Smaller pre‑moistened bags like LGM Soil’s ready‑to‑use packs offer convenience and reduce waste for occasional gardeners, though the price per volume is higher. Choose bulk for frequent use and pre‑moistened for ease and space savings.
Which product gives the most eco‑friendly footprint?
Back to the Roots 100% Organic Potting Mix is peat‑free, uses upcycled plant material, and is made in the USA, giving it a strong sustainability profile. The Back to the Roots Organic Coir and Wonder Soil’s coco‑coir based mixes are also peat‑free and use renewable resources. Among these, the peat‑free options generally have the smallest carbon impact.