Comparison: Best Organic Potting Soil For Indoor Plants (Updated | Nov 11th)
I’ve tested the top contenders so you don’t have to, and in this roundup, I’ll break down the best organic potting soils that actually deliver lush, thriving indoor plants—no green thumb required. Let’s find the perfect mix for your leafy friends.
Editor’s Choice
Best for a specific purpose
- Best for mycorrhizae boost: Back to the Roots 100% Organic Indoor Potting Mix (Value 12 Quart) | Promotes Healthy Houseplant Growth| Made in The USA
- Best for water-guard mix: Miracle-Gro Organic Indoor Potting Mix
- Best for premium all-purpose: Back to the Roots 100% Organic Potting Mix (Value 12 Quart) | Premium Blend | Made in The USA
- Best for living soil blend: Rosy Soil Indoor Potting Soil for House Plants – Organic Potting Soil Mix for Indoor Plants – Enriched w/Root-Boosting Biochar for Foliage Plants
- Best for large living soil: Rosy Soil Indoor Potting Soil for House Plants – Organic Potting Soil Mix for Indoor Plants – Enriched w/Root-Boosting Biochar for Foliage Plants
- Best for dual bag value: Miracle-Gro Organic Indoor Potting Mix
- Best for expandable coco mix: 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 bulk growth pack: Miracle-Gro Organic Indoor Potting Mix
- Best for perlite power mix: Miracle-Gro Houseplant Potting Mix: Fertilized
- Best for premium growth soil: Organic Potting Soil for Indoor Plants. Boost House Plant Growth for Monstera
Product Comparison: Best Organic Potting Soil For Indoor Plants
Mycorrhizae 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
- 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
Water-Guard Mix
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)
Premium All-Purpose
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.
Living Soil Blend
Rosy Soil Indoor Potting Soil for House Plants – Organic Potting Soil Mix for Indoor Plants – Enriched w/Root-Boosting Biochar for Foliage Plants, Flowers, Herbs – Peat Free, Less Prone to Gnats – 4qt
Rosy Soil
- Thriving Growth Formula: Rosy Soil indoor potting soil for houseplants enhances the well-being of your indoor garden. Our indoor plant soil is enriched with biochar and pine bark fines for robust root systems, balanced moisture retention, and abundant, healthy plant growth. Say goodbye to wilting and welcome flourishing greenery!
- Ideal for All Types of Houseplants: Our indoor potting mix’s formula promotes living soil, which is teeming with beneficial microorganisms. These tiny soil allies work together with the plants to enhance their growth and are perfect for almost all types of houseplants, including foliage plants, flowers, ferns, herbs, and tropicals.
- Easy Planting Instructions: Fill the base of a well-draining container with the indoor plant soil. Carefully transfer your houseplant, ensuring that you gently free its roots from any debris. Finally, water generously from the top until excess water drains through the container’s drainage hole, providing optimal hydration for indoor plants.
- New Package with Same Quality Soil: Our trusted indoor potting soil mix is now in a fresh, resealable, plastic-neutral bag that keeps soil fresh and easy to use. Made with sustainable, premium materials free from peat and synthetic additives, it’s the same high-quality blend you trust, now in an eco-friendly package.
- Living Soil (Made in USA): Our package contains 4 quarts of indoor potting mix, enough for 2-3 plants, ensuring your indoor oasis remains nourished and flourishing. Fortified with beneficial fungi & microbes to help promote healthy root development and lush foliage.
Large Living Soil
Rosy Soil Indoor Potting Soil for House Plants – Organic Potting Soil Mix for Indoor Plants – Enriched w/Root-Boosting Biochar for Foliage Plants, Flowers, Herbs – Peat Free, Less Prone to Gnats – 8qt
Rosy Soil
- Thriving Growth Formula: Rosy Soil indoor potting soil for houseplants enhances the well-being of your indoor garden. Our indoor plant soil is enriched with biochar and pine bark fines for robust root systems, balanced moisture retention, and abundant, healthy plant growth. Say goodbye to wilting and welcome flourishing greenery!
- Ideal for All Types of Houseplants: Our indoor potting mix’s formula promotes living soil, which is teeming with beneficial microorganisms. These tiny organic soil allies work together with the plants to enhance their growth and are perfect for almost all types of houseplants, including foliage plants, flowers, ferns, herbs, and tropicals.
- Easy Planting Instructions: Fill the base of a well-draining container with the indoor plant soil. Carefully transfer your houseplant, ensuring that you gently free its roots from any debris. Finally, water generously from the top until excess water drains through the container’s drainage hole, providing optimal hydration for indoor plants.
- New Package with Same Quality Soil: Our trusted indoor potting soil mix is now in a fresh, resealable, plastic-neutral bag that keeps soil fresh and easy to use. Made with sustainable, premium materials free from peat and synthetic additives, it’s the same high-quality blend you trust, now in an eco-friendly package.
- Living Soil (Made in USA): Our package contains 8 quarts of indoor potting mix, enough for 4-6 plants, ensuring your indoor oasis remains nourished and flourishing. Fortified with beneficial fungi & microbes to help promote healthy root development and lush foliage.
Dual Bag Value
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)
Expandable Coco Mix
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
Wonder Soil
- 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!
Bulk Growth 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)
Perlite Power Mix
Miracle-Gro Houseplant Potting Mix: Fertilized, Perlite Soil for Indoor Gardening, Designed to Be Less Prone to Gnats, 4 qt.
Miracle-Gro
- 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
Premium Growth Soil
Organic Potting Soil for Indoor Plants. Boost House Plant Growth for Monstera, Fiddle Leaf, Money Tree, Pothos, Snake Plant, Aroid, Flowers, Herbs, Veggies, & More, Smart Grower 3 LB Ready to Plant
Smart Grower
- Maximize Indoor Plant Growth Naturally– This premium organic indoor potting soil blend combines organic compost, peat, biochar, worm castings, and coco coir for a lightweight, nutrient-rich mix. Ideal for indoor herb gardens, vegetables, flowers, and house plants like Monstera, Snake Plants, and Money Trees.
- Save Time and Effort with Your Plants– No need for mixing or expanding soil—just open and plant! Smart Grower organic indoor potting soil provides a hassle-free, nutrient-packed living soil with superior drainage to prevent overwatering and root rot giving you a quick, no -fuss solution for happier indoor plants.
- USA Made, Cruelty-Free & Pet Safe – Feel good with organic indoor plant soil made in the USA without bone meal, fish byproducts, or animal-derived ingredients. This organic indoor plant soil is completely pet-safe, cruelty-free, and non-GMO—perfect for eco-conscious gardeners.
- Quickly Revive & Strengthen Indoor Plants – Supercharged with our root-enhancing blend of mycorrhizal fungi, sea kelp, molasses, yucca extract, Trichoderma, and beneficial Bacillus microbes to revive struggling plants, promote strong root growth, and maximize yields for your indoor plants.
- Made For Healthier Indoor Plants – Expertly designed for optimal indoor plant health, extended indoor plant life, and better yields for indoor vegetable plants, flowers and tropicals. Whether you need Monstera soil, Pothos soil, or an aroid potting mix, snake plant soil, fiddle leaf fig soil, tropical plant soil, this premium blend provides everything your houseplants need to thrive.
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 key ingredients should I look for in an organic indoor potting mix?
Focus on blends that include moisture‑retaining agents like yucca extract, coir, or peat, and nutrient boosters such as mycorrhizal fungi, worm castings, or kelp. These components improve water balance, root development, and overall plant vigor. A balanced pH amendment, often dolomitic limestone, helps keep nutrients available. Avoid mixes with synthetic fertilizers if you prefer a fully organic solution.
How does Back to the Roots’ 12‑quart mix compare to Miracle‑Gro’s 16‑quart version?
Back to the Roots emphasizes a peat‑free formula with yucca extract and mycorrhizal fungi for root health, while Miracle‑Gro relies on responsibly sourced peat moss, coir, and a quick‑start natural fertilizer. The Back to the Roots mix is marketed as pet‑safe and less attractive to gnats, whereas Miracle‑Gro highlights its over‑ and under‑watering protection. Both provide similar volume, but the Back to the Roots blend may appeal more to eco‑conscious gardeners.
Is a larger bag size more cost‑effective for indoor gardening?
Generally, buying in bulk reduces the per‑quart price and ensures you have enough soil for multiple containers or larger pots. However, larger bags can be heavier and may sit unused if you have limited space, potentially leading to moisture loss over time. Consider your planting schedule and storage capacity before opting for the biggest size.
Which product offers the best value for beginners who want a ready‑to‑use mix?
Wonder Soil’s compressed coco coir mix expands fourfold, giving a high volume from a small, resealable bag, and includes added amendments like worm castings and perlite. This makes it lightweight, easy to store, and ready to plant without extra mixing. For beginners, the convenience and low waste factor often translate into better overall value.
Do any of these mixes help reduce indoor pests like fungus gnats?
Back to the Roots’ mix avoids bark and compost, which can attract gnats, and its peat‑free formula reduces the typical breeding grounds. Miracle‑Gro’s blend also claims reduced gnats thanks to its specific peat‑coir balance. If pest control is a priority, the Back to the Roots option may provide a slight edge.
How important is the presence of mycorrhizal fungi in a potting soil?
Mycorrhizal fungi form a symbiotic relationship with plant roots, enhancing nutrient uptake, especially phosphorus, and improving drought tolerance. Several products, like Back to the Roots and the premium organic blends, contain these fungi, which can lead to faster, healthier growth. For indoor plants that often experience limited root space, this addition can be a significant performance boost.
What should I consider regarding pH balance when choosing an indoor potting mix?
Indoor soils should maintain a slightly acidic to neutral pH (around 6.0‑7.0) to optimize nutrient availability. Many mixes include dolomitic limestone or other buffering agents to stabilize pH, as seen in Back to the Roots and Wonder Soil formulations. Selecting a mix with built‑in pH regulation reduces the need for supplemental adjustments and helps prevent nutrient lockout.