Comparison: Best Buy Soil For Plants Online (Updated | Nov 11th)
Shopping for soil online might just be the game-changer you didn’t know you needed. We’ve dug through dozens of top-rated options, from organic mixes to specialty blends for succulents and veggies, so you don’t have to. Whether you’re a seasoned gardener or just starting out, finding the perfect potting mix is easier than you think.
- Best for gnat-resistant indoor: Miracle-Gro Houseplant Potting Mix: Fertilized
- Best for organic outdoor feed: Miracle-Gro Organic Outdoor Potting Mix
- Best for long-lasting boost: Miracle-Gro Potting Mix
- Best for moisture mastery: Miracle-Gro Moisture Control Potting Mix
- Best for fast-drain succulents: Miracle-Gro Cactus
- Best for balanced organic indoor: Miracle-Gro Organic Indoor Potting Mix
- Best for pet-safe organic: Back to the Roots 100% Organic Indoor Potting Mix (Value 12 Quart) | Promotes Healthy Houseplant Growth| Made in The USA
- Best for big-bag organic: Miracle-Gro Organic Outdoor Potting Mix
- Best for coir comfort indoor: Miracle-Gro Indoor Potting Mix
- Best for compact nutrient power: 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
Product Comparison: Best Buy Soil For Plants Online
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
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 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 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 Cactus, Palm and Citrus Potting Mix, for Indoor or Outdoor Potted Plants, Great for Succulents, 8 qt., 2-Pack

- Miracle-Gro Cactus, Palm & Citrus Potting Mix features a fast-draining formula and is enriched with Miracle-Gro Plant Food
- This fast-draining formula is blended to help promote successful growing of cacti, potted palms, citrus, and other succulents
- This cactus potting mix is designed for indoor and outdoor container plants, including cacti, palm plants, citrus trees, and succulents
- To use this succulent soil mix, fill a pot with a drainage hole 1/3 full of mix, top with more mix after placing plant, and press lightly
- This bundle includes two 8 qt. bags of Miracle-Gro Cactus, Palm & Citrus Potting Mix, each able to fill two 8-inch containers (amounts may vary based on root ball size)
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)
Back to the Roots 100% Organic Indoor Potting Mix (Value 12 Quart) | Promotes Healthy Houseplant Growth| Made in The USA

- 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
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 Indoor Potting Mix, Blended for a Variety of Houseplants, Feeds for up to 6 Months, 16 qt., 2-Pack

- Miracle-Gro Indoor Potting Mix feeds houseplants for up to 6 months and is designed to be less prone to gnats (contains no compost or bark, which are known to shelter fungus gnats)
- This potting mix contains coconut coir, which holds and releases water and helps soil re-wet
- Where to use: Blended for a wide variety of indoor container plants, including climbing, foliage, flowering, and tropical plants
- How to use: To use, fill a container about 1/3 full with potting mix; add more mix after placing your plant in the pot
- What’s included: This bundles includes two 16 qt. bags of Miracle-Gro Indoor Potting Mix, each able to fill one 12-inch containers (exact amount may vary based on the root ball size)
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!
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 consider when choosing a potting mix for indoor houseplants?
Look for a mix that balances water retention and drainage, contains nutrients for sustained feeding, and minimizes pest issues like fungus gnats. Products such as Miracle-Gro Houseplant Potting Mix include perlite and peat moss for good aeration, while Back to the Roots offers a peat‑free, organic formula with mycorrhizae for root health. Also check if the mix is certified by a reputable soil council, which can indicate quality and consistency.
How do organic potting mixes differ from conventional blends?
Organic mixes, like Miracle‑Gro Organic Indoor and Outdoor Potting Mixes, use naturally derived fertilizers and responsibly sourced peat, providing a slower, more sustainable nutrient release. Conventional blends often contain synthetic quick‑release fertilizers that feed plants for up to six months but may include compost or bark that can attract gnats. Choose organic if you prefer eco‑friendly ingredients and reduced chemical inputs.
Which mix is best for water‑sensitive plants such as succulents and cacti?
A fast‑draining formula is essential for succulents; the Miracle‑Gro Cactus, Palm & Citrus Potting Mix is specifically engineered with rapid drainage and added plant food. Its coarse texture prevents water from lingering around roots, reducing the risk of rot. Avoid mixes heavy in peat or coir if you need extra aeration for drought‑tolerant species.
Is there a potting mix that helps prevent over‑ and under‑watering?
Yes, Miracle‑Gro Moisture Control Potting Mix features an AquaCoir formula that absorbs up to 33% more water than standard soils while still providing excellent drainage. This helps maintain a steadier moisture level, protecting plants from both soggy roots and drying out. It’s a good choice for busy gardeners who may miss watering schedules.
How do the feeding durations compare across the different mixes?
Most Miracle‑Gro blends, such as the standard Potting Mix and Moisture Control Mix, claim up to six months of nutrient release, while the Organic Indoor and Outdoor mixes provide feeding for about two months due to their natural fertilizer content. The Houseplant Potting Mix is designed for indoor use and suggests supplemental feeding after 30 days for optimal growth. Longer feeding periods can reduce the need for frequent fertilizer applications.
What value does a multi‑bag bundle offer versus a single bag?
Bundled packs, like the two‑bag sets of Miracle‑Gro Potting Mix or Moisture Control Mix, give a lower cost per quart and ensure you have enough soil for multiple containers or larger projects. They also simplify inventory management, so you don’t run out mid‑garden. For occasional gardeners, a single 4‑qt bag of Houseplant Mix may be more economical.
Are there pet‑safe or gnat‑free options among these soils?
Back to the Roots 100% Organic Indoor Potting Mix is marketed as pet‑safe and less prone to gnats because it lacks bark and compost. Miracle‑Gro Indoor Potting Mix also reduces gnat attraction by omitting compost ingredients. If you have pets or are sensitive to pest issues, choosing a mix with these specifications can provide peace of mind.
Which potting mix provides the most environmentally friendly profile?
The Back to the Roots mix stands out for being peat‑free, using organic yucca extract, and incorporating mycorrhizae, which reduces greenhouse gas emissions associated with peat extraction. Wonder Soil’s organic potting soil also boasts a peat‑free, fully compostable coco coir base with added natural amendments. Selecting these options supports sustainable gardening practices.
