Comparison: Best Organic Potting Soil With Fertilizer (Updated | Nov 11th)
We’ve dug deep (literally) to find the best organic potting soils that come packed with built-in fertilizer, so your plants get the nutrients they need from day one. From lush greens to blooming beauties, the right mix makes all the difference. Let’s break down the top contenders that deliver real results—no guesswork needed.
- Best for quick-feed outdoor: Miracle-Gro Organic Outdoor Potting Mix
- Best for dual-bag deal: Miracle-Gro Organic Outdoor Potting Mix
- Best for peat-free premium: Back to the Roots 100% Organic Potting Mix (Value 12 Quart) | Premium Blend | Made in The USA
- Best for high-volume mix: Miracle-Gro Organic Outdoor Potting Mix
- Best for supercharged expandable: Compressed Organic Potting Soil for Garden
- Best for water-balanced indoor: Miracle-Gro Organic Indoor Potting Mix
- Best for all-purpose topsoil: Michigan Peat 40 Pound Bag Garden Magic Organic Planting Potting Top Soil Blend Mix for Indoor and Outdoor Gardening and Landscapes
- Best for coco nutrient 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 mycorrhizae enriched: Espoma Organic Potting Soil Mix – All Natural Potting Mix For All Indoor & Outdoor Containers Including Herbs & Vegetables. For Organic Gardening
- Best for eco compost: Old Potters Organic Compost – Plant Based Potting Soil – Home
Product Comparison: Best Organic Potting Soil With 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 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 Outdoor Potting Mix, for Outdoor Container Plants, Contains Quick-Release Natural Fertilizer, OMRI Listed, 16 qt., 2-Pack
- 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)
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, 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)
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.
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)
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
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 Potting Soil Mix – All Natural Potting Mix For All Indoor & Outdoor Containers Including Herbs & Vegetables. For Organic Gardening, 2 Cubic Foot bag. Pack of1
- 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.
Old Potters Organic Compost – Plant Based Potting Soil – Home, Garden Fertilizer – Complete Food – Boosts Plant Growth – Use for Indoor and Outdoor Farming ~25 lbs (24 Quarts)
- 100% Organic & Chemical-Free – Made from natural plant-based materials, safe for all types of gardens.
- Boosts Soil Health – Improves aeration, water retention, and nutrient availability for stronger plants.
- Eco-Friendly & Sustainable – Supports sustainable gardening by recycling organic waste into rich compost.
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 look for when choosing an organic potting mix for outdoor containers?
Focus on the mix’s nutrient content, water retention, and whether it includes a natural fertilizer that lasts several weeks. Also consider the source of peat or peat‑free ingredients, as environmentally conscious gardeners may prefer blends made from upcycled plant matter. Finally, check the bag size to match the volume of your containers and avoid waste.
How does Miracle‑Gro’s organic outdoor mix compare to the Back to the Roots peat‑free blend?
Miracle‑Gro uses responsibly sourced peat and includes a quick‑release natural fertilizer that feeds plants for up to two months, while Back to the Roots is 100% peat‑free, made from upcycled plant material, and adds yucca extract for moisture control. The Miracle‑Gro mix is ideal for gardeners who want immediate nutrient boost, whereas the Back to the Roots blend appeals to those prioritizing sustainability and a balanced pH. Both are suitable for a wide range of vegetables, herbs, and flowers.
Is it more cost‑effective to buy the 25‑quart Miracle‑Gro bag or the 2‑pack of 16‑quart bags?
The 25‑quart bag provides enough soil for three 10‑inch containers, offering a lower price per quart compared with the two 16‑quart bags, which each fill a single 12‑inch pot. If you have many large containers or plan to refill over time, the larger bag gives better value. However, the 2‑pack offers flexibility for smaller projects and easier storage.
Can the Miracle‑Gro Indoor Potting Mix be used for seed starting?
Yes, the indoor mix contains a quick‑start natural fertilizer and a blend of peat moss and coir that balances moisture, making it ideal for seed germination and young seedlings. Its formulation also helps protect against both over‑ and under‑watering, which is crucial for delicate indoor plants. Just follow the seed packet’s planting depth and water lightly after sowing.
What are the benefits of compressed organic soil that expands four times its size?
Compressed soil is lightweight and space‑saving, expanding up to four times when mixed with water, which makes it convenient for transport and storage. It’s enriched with coconut coir, worm castings, and mycorrhizae, providing a broad spectrum of nutrients and improved water retention. This type of mix works well for seed trays, small pots, and as a top‑dress for larger beds.
How does the nutrient profile of Espoma’s organic potting soil differ from Miracle‑Gro’s outdoor mix?
Espoma blends sphagnum peat moss, humus, perlite, earthworm castings, alfalfa meal, kelp meal, and feather meal, offering a diverse organic nutrient base without synthetic additives. Miracle‑Gro’s outdoor mix relies on a quick‑release natural fertilizer for a fast nutrient boost that lasts about two months. Espoma’s formula is geared toward steady, long‑term feeding, while Miracle‑Gro emphasizes rapid growth.
Is the Michigan Peat topsoil suitable for indoor container gardening?
Michigan Peat is designed as a general‑purpose potting mix for both indoor and outdoor use, featuring a blend of peat, perlite, and sand that provides good drainage and moisture retention. However, it lacks the added organic fertilizers found in some dedicated indoor mixes, so you may need to supplement with a balanced liquid feed. It’s a solid, affordable option for gardeners who prefer a simple, ready‑to‑use soil.
Which product offers the best value for a beginner gardener who wants an eco‑friendly option?
Back to the Roots 100% organic, peat‑free potting mix delivers a sustainable blend with moisture‑control additives and a satisfaction guarantee, making it appealing for environmentally conscious beginners. Its 12‑quart size is manageable, and the blend supports a wide range of plants without the carbon footprint of peat. For added value, the product also contributes to educational kits through its GrowOneGiveOne program.