Search

*Disclaimer: Tossions earns a commission from qualifying purchases.

The 8 Best soil and soil amendments of 2024

Are you trying to find soil and soil amendments among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling soil and soil amendments on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 18 hours of research and did 16 soil and soil amendments tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best soil and soil amendments you can buy today

No. 1
Turbo Soil Bio-Blend, Superior Organic Soil Amendment (3 lbs)
  • ALL NATURAL SOIL BOOSTER: Turbo Soil Bio-Blend is a high-performance additive for your soils, to get you the healthiest, most vibrant, and productive plants, blooms, vegetables. GS Plant Foods soil amendments will help plants be able to better absorb micro-and macro-nutrients, and thus grow healthier and more prosperously. The garden soil amendment is a great natural slow-release fertilizer that is beneficial for all plants including tomatoes, flowers, vegetables, and more.
  • TURBO SOIL BIO-BLEND FOR SUPERIOR ROOT HEALTH: GS Plant Foods organic amendments for soil is made from powerful, organic elements and other nutrients which greatly benefits the development of the plant’s root system, resulting in stronger, healthier plant, enabling growth and nutrient uptake. GS Plant Foods Turbo Soil Bio-Blend is a superior blend that can be applied in your herb gardens, house plants, and potted plants without concern for waste or harmful chemicals.
  • PACKED WITH NUTRIENTS AND MINERALS: GS Plant Foods Turbo Soil Bio-Blend provides a range of necessary nutrients and minerals including calcium and magnesium. Turbo Soil Bio-Blend gives an element for roots to engage with, which extends to look for water and nutrients such as nitrogen, carbon, and potassium. This soil amendment consists of naturally occurring humic acid. Whatever you add Turbo Soil Bio-Blend to will benefit greatly from our high-quality blend.
  • EASY TO APPLY FOR NATURAL GREAT RESULTS: For turfs, shrubs & trees; 3 lbs over 100 sq ft. For garden; 3 lbs broadcast per 100 sq ft. For perenials and annuals; 2 lbs per 100 sq ft. For individual small potted plants; 2 tablespoons per plant (6 inch), mixed into soil. For large potted plants; 1/2 cup per gallon of soil, mixed into soil. For application to existing growth; sprinkle on top of soil at base. For new growth applications; till into soil.
  • TRUSTED & RELIABLE: At GS Plant Foods, we understand that you are placing your trust in us to provide you with the highest quality products available. We have 100% confidence in the quality of our products and continuously strive to deliver the best customer experience. Our plant food fertilizer products are organic, easy to use, cost efficient, sustainable, and yield consistent & amazing results in your garden, no matter what you're growing or what medium in which your plants are growing.
No. 2
The Andersons HumiChar Organic Soil Amendment with Humic Acid and Biochar (40 lb)
  • HumiChar is an organic, carbon-based soil amendment containing 50% high-quality humic acid and 50% granulated biochar -- Provides the benefit of quickly-available humic acid and the long-term soil building qualities of the biochar that lasts for decades
  • Improve your soil health, lawn health, plant health, and reduce the use of fertilizers
  • Easy to apply spherical, uniform, low dust formulation --Dispersible Granule, or "DG" Technology is The Andersons' patented nutrient delivery system. With DG Technology, particles are more rapidly and efficiently broken down
  • Environmentally friendly, OMRI listed. User friendly; can be blended with fertilizers or used alone
  • Not for sale in California or Oregon
No. 3
Lawnbox Soil Saver 100% Organic Gypsum and Humic Acid Soil Amendment 15 lb Bag Covers 2,500 sq ft
  • Soil Saver is an OMRI listed, 100% organic soil amendment
  • Loosens hard-packed soils, improving soil structure and drought tolerance
  • Encourages deeper root growth and enhances nutrient uptake
  • Delivers gypsum, humic acid, calcium and sulfer
  • Safe for use on all turf and soil types
No. 4
The Andersons BioChar DG Organic Soil Amendment - Covers up to 5,000 sq ft (10 lb)
  • BioChar lasts in the soil for years, improving soil health over time with particles designed to attract nutrients, beneficial bacteria, microbes, and water, making all of these more available for plants
  • Builds rich, carbon-heavy soil that requires less fertilizer for plant growth
  • Easy-to-apply spherical, uniform, low-dust formulation -- Features DG Technology, which allows particles to disperse with water, moving immediately into the soil
  • Ideal for seeding and composting applications on lawns, gardens, flower beds, potted plants, etc.
  • Not for sale in California and Oregon
No. 5
Gypsum Granules - Made in USA - Calcium Sulfate Dihydrate - Garden Soil Amendment Fertilizer for Lawns, Plants, Calcium & Sulfur Additive. Cures Blossom End Rot in Tomatoes & Peppers
  • Gypsum Calcium Sulfate Dihydrate is all natural mineral fertilizer listed by the Organic Materials Review Institute (OMRI) for use in organic production
  • Supplies essential nutrients calcium and sulfur to improve plant growth and maximize fertilizer performance.
  • Loosens compacted soil to allow water to penetrate soil faster.
  • pH Neutral. Cures Blossom End Rot Perfect for Tomatoes, Roses, and other container garden plants!
  • Repairs soil from Pet Damage and Road Salt
  • RESEALABLE, EASY POUR PACKAGING: Cz Garden Dolomitic Lime is professionally packaged in a 5 LB Heavy Duty resealable pouch designed for long term storage. Pour the necessary quantity with ease and store the rest for future use.
  • COUNTRY OF ORIGIN: USA - Cz Garden fertilizers and soil amendments are manufactured in the USA from the highest quality ingredients. Buy with confidence!
  • Cz Garden Organics is committed to developing Premium Grade custom soil amendment blends, fertilizers, and nutrients for your organic garden. Ya Dig? Germinate. Propagate. Cultivate.
No. 6
The Complete Guide to Restoring Your Soil: Improve Water Retention and Infiltration; Support Microorganisms and Other Soil Life; Capture More Sunlight; ... Crops, and Carbon-Based Soil Amendments
  • Amazon Kindle Edition
  • Strickler, Dale (Author)
  • English (Publication Language)
  • 349 Pages - 10/26/2021 (Publication Date) - Storey Publishing, LLC (Publisher)
No. 8
Gypsum Powder - Made in USA - 5LB Calcium Sulfate Dihydrate - Garden Soil Amendment Fertilizer for Lawns, Plants, Mushroom Cultivation. Calcium & Sulfur Additive. Cures Blossom End Rot in Tomatoes
228 Consomer Reviews
Gypsum Powder - Made in USA - 5LB Calcium Sulfate Dihydrate - Garden Soil Amendment Fertilizer for Lawns, Plants, Mushroom Cultivation. Calcium & Sulfur Additive. Cures Blossom End Rot in Tomatoes
  • Gypsum Calcium Sulfate Dihydrate is all natural mineral fertilizer listed by the Organic Materials Review Institute (OMRI) for use in organic production
  • Supplies essential nutrients calcium and sulfur to improve plant growth and maximize fertilizer performance.
  • Loosens compacted soil to allow water to penetrate soil faster.
  • pH Neutral. Cures Blossom End Rot Perfect for Tomatoes, Roses, and other container garden plants!
  • Repairs soil from Pet Damage and Road Salt
  • Mushroom Cultivation - helps to improve the structure and water-holding capacity of the substrate, neutralizes excess acidity and provides essential calcium
  • RESEALABLE, EASY POUR PACKAGING: Cz Garden Dolomitic Lime is professionally packaged in a 5 LB Heavy Duty resealable pouch designed for long term storage. Pour the necessary quantity with ease and store the rest for future use.
  • COUNTRY OF ORIGIN: USA - Cz Garden fertilizers and soil amendments are manufactured in the USA from the highest quality ingredients. Buy with confidence!
  • Cz Garden Organics is committed to developing Premium Grade custom soil amendment blends, fertilizers, and nutrients for your organic garden.
SaleNo. 9
Fertilizers and Soil Amendments
  • Hardcover Book
  • Follett, Roy Hunter (Author)
  • English (Publication Language)
  • 640 Pages - 04/24/1981 (Publication Date) - Prentice Hall (Publisher)
SaleNo. 10
Horticultural Charcoal for Indoor Plants (2 Quarts), Hardwood Soil Amendment for Orchids, Terrariums, and Gardening
  • USES: Perfect for terrariums, bonsai trees, air plants, orchids; indoor / outdoor container gardening
  • Benefits: Captures carbon, cleans air, drainage assistance
  • All-Natural: No chemicals, no colorings, no additives, 100% hardwood
  • Ingredients: Horticultural charcoal
  • Size: 2 quarts (enough for three 5-inch pots or 2 6-inch pots)
No. 11
Espoma Organic Soil Acidifier Soil Amendment; Lowers Soil pH and Turns Hydrangeas Blue! Contains Elemental Sulfur and can be Used for Organic Gardening 6 lb. Bag - Pack of 1
  • FOR USE ON: For all Acid-loving plants; Use Espoma Organic Soil Acidifier for azaleas, hydrangeas, rhododendrons, blueberries, evergreens, strawberries, camellias, and all plants that thrive in acidic soils
  • TURNS HYDRANGEAS BLUE: Turn Mophead & Lacecap hydrangeas blooms to an electric blue by adding Soil Acidifier and lowering soil pH
  • CONTAINS: Soil Acidifier contains elemental sulfur and gypsum
  • FOR ORGANIC GARDENING: Soil Acidifier is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production
  • MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929
No. 12
Covington Soil Food, Soil Softener for Lawns, Liquid Soil Conditioner for Clay Soil with Approved Soil Amendments for Organic Use
  • ✔️ Deep Soil Conditioner: We use a carefully balanced formula to make our soil conditioner for lawns to help loosen and soften compacted soil without relying on any harsh chemicals and accommodate most grass types, flowers and plants.
  • ✔️ Support Lawn Growth: This liquid clay soil amendment is made to help enhance the soil structure of lawns and gardens while promoting nutrient uptake to help support plant and root growth making it ideal for maintaining just the right soil conditions for plants to grow.
  • ✔️ Promote Water & Energy Efficiency: Our liquid soil loosener and aerator raises the plant's BRIX levels to help build carb strength and support energy efficiency to help plants grow faster, sweeter and healthier while blending with the rest of your lawn care products.
  • ✔️ Simple To Use: From softening soil to providing plant nutrients, our lawn soil conditioner has you covered. Simply mix with water and spray it on your plants or lawn every other week. It can be used with a sprayer as well as being suitable for hydroponics.
  • ✔️ Purity That Matters: The liquid plant food is made using only pure and natural, ingredients without relying on any harsh or artificial chemicals to support grass, turf, plants, produce, etc. It’s made in the USA and is safe to use around pets and children.
No. 13
Dolomite Lime - Made in USA - Garden Soil Amendment Fertilizer for Plants. Calcium/Magnesium Additive. Safely Raise & Stabilize pH - Earthbox Tomatoes & Peppers Blossom End Rot
  • Dolomite Lime is all natural mineral fertilizer listed by the Organic Materials Review Institute (OMRI) for use in organic production
  • Supplies essential nutrients calcium and magnesium, and sweetens your soil to improve plant growth and maximize fertilizer performance
  • Raises and stabilizes soil pH. Perfect for Earthbox and other container gardens!
  • Natural limestone is ground into an ultra-fine powder for rapid reaction time. Prevents and Cures Blossom End Rot in Tomatoes and Peppers!
  • RESEALABLE, EASY POUR PACKAGING: Cz Garden Dolomitic Lime is professionally packaged in a 5 LB Heavy Duty resealable pouch designed for long term storage. Pour the necessary quantity with ease and store the rest for future use.
  • COUNTRY OF ORIGIN: USA - Cz Garden fertilizers and soil amendments are manufactured in the USA from the highest quality ingredients. Buy with confidence!
  • Cz Garden Organics is committed to developing Premium Grade custom soil amendment blends, fertilizers, and nutrients for your organic garden. Ya Dig? Germinate. Propagate. Cultivate.
No. 14
Carnivorous Plant Potting Soil Mix (2 Quarts), Ideal Amendment for Venus Fly Traps, Sundews, and Pitcher Plants
  • Jungle Plant Dirt: Hand-blended, 100% all-natural mixture; no additives or chemicals
  • Uses: Perfect for repotting most carnivorous plants such as Venus Fly Trap, Sundews, Butterworts, Cobra Lily, Dewy Pine and Pitcher Plants; use for indoor / outdoor container gardening
  • Benefits: Quick drainage, soil aeration and nutrient retention
  • Ingredients: Perlite and peat moss
  • Size: 2 quarts (enough for three 5-inch pots or 2 6-inch pots)
No. 15
Horticultural Pumice - 2.5 Dry quarts - Cactus Succulent Bonsai Soil Amendment
6 Consomer Reviews
Horticultural Pumice - 2.5 Dry quarts - Cactus Succulent Bonsai Soil Amendment
  • Volcanic pumice soil amendment
  • 2.5 dry quarts of natural mined Pumice.
  • Granule size 3/8 x 1/4.
  • Perfect for any soil mixture!
  • Pumice is a volcanic rock that is commonly used in horticulture and gardening as a soil amendment or growing medium. It is lightweight and porous which makes it an ideal addition to potting mixes and soils.
  • In plants, pumice is used to improve soil structure and drainage. When added to soil, pumice helps to create air spaces that allow roots to breathe and water to drain more easily. This is particularly useful in soils that are heavy or compacted, as pumice can help to prevent waterlogging and improve aeration.
  • Pumice is also used as a top dressing for plants, especially in bonsai and cactus gardening. The small particles of pumice help to prevent soil erosion, retain moisture, and provide a stable surface for the plants to grow on.
  • Overall, pumice is a useful material for all plants including cacti, succulents, and bonsai because of its ability to improve soil structure, drainage, and aeration, and its usefulness as a top dressing for plants.
SaleNo. 16
Organic Worm Castings (1 Quart); 1LB All Natural Soil Amendment, Soil Builder, and Fertilizer
  • ALL NATURAL BLEND: No added fertilizers or pesticides, 100% organic
  • USES: Great soil amendment, provides perfect compost alternative especially for indoor and outdoor container gardening
  • BENEFITS: Rich in nutrients to help your plants grow; naturally slow release fertilization for plants; provides nitrates, potassium, magnesium, calcium and phosphorus to plants; helps soil to retain moisture
  • Ingredients: All natural worm castings, no additives
  • Size: 1 Quart (more than 1 pound of worm castings)
SaleNo. 17
Calcined Clay Soil Amendment (2 Quarts), for Bonsai Tree Potting and Other Plants, Regulates Moisture
  • Bonsai’s Friend: Calcined clay is ideal for various types of bonsai trees, alternative to akadama
  • Uses: Add to your bonsai potting mix as an amendment
  • Benefits: Improves cation exchange, increases microbi@l activity, provides nutrient retention, and moisture retention, helps increase plant yield
  • Ingredients: Calcined clay
  • Size: 2 quarts (enough for three 5-inch pots or 2 6-inch pots)
No. 18
The Bud Grower | Premium 100% Organic Super Soil Concentrate | 5 lbs of Premium Soil Concentrate & Rapid Rooters | All-in-One Soil Amendment
  • NUTRIENT INFUSED SOIL: Our soil is some 800% more nutrient dense than simple potting soil. We have included all the nutrients you need for your entire grow within our soil. California Super Soil is primarily a heavily nutrient infused soil that removed the need to add external nutrients to your grow. Our Super Soil delivers a perfect turn-key grow solution for the most demanding of plants.
  • HIGHEST QUALITY SUPER SOIL: To grow the best, you need the top planting soil. Our new California Hot Soil is all you need for the best growing results without using any harsh chemicals. A nutrient rich artisanal soil formulated throughout the years in research and development to result in a final blend unmatched by others.
  • LIVING SOIL TECHNOLOGY: Growers love the living soil technology of California Super Soil since there is no need for advanced nutrients or plant food ever for your growing garden. Fermented for just over 2 months to allow microbes to begin breaking down amendments and recycling them into plant nutrients. This prevents nutrient burning from the soil to make certain the best possible grow for you indoor gardening efforts.
  • ORGANIC SOIL MIX: Most other indoor plant food and garden soil products are manufactured using process ingredients that cannot be properly absorbed into the soil, unlike ours. The 18+ nature’s nutrient blend ensures your vegetable plants get off to the right start and then continue growing strong right up to harvest.
  • INDOOR PLANT SOIL KIT INCLUDES: This kit will keep you on track with your grow by providing enough nutrients for multiple small grows, or one big grow! Check out our full inventory of items that work hand in hand with our soil like our hydroponics growing system and other hydroponics supplies for your indoor gardening
No. 19
Garden Journal: Large Garden Planner to Organize, Plan, Record all details about your Garden including Soil Amendment/ Transplant Details/ Harvest/Bloom Details and much more
  • Grand Journals (Author)
  • English (Publication Language)
  • 150 Pages - 12/22/2019 (Publication Date) - Independently published (Publisher)
No. 20
JFWOD 3lb Hard Akadama Bonsai Soil 3-6mm Small Grain for Cactus, Succulents, Bonsai Plants Soil Amendment, Prevent Over Water, Provides Optimal Water Retention, Fast Drainage
  • This Bonsai Akadama (3-6mm) is fired clay from 100% natural volcanic soil, eco-friendly, no additional fillers, no paint, no dyes, no chemicals, and provides the tree with moisture while preventing compaction.
  • This professional-grade akadama is well packed in a reusable sealing bag, the package weights 3 pounds per bag.
  • Akadama soil changes color (it darkens) when wet, indicating when to water your plant. Keep an eye that you don’t overwater them or don’t leave them under-watering, which retain their form when dry and absorb water when wet.
  • The akadama is one of the most commonly used mediums for bonsai soil, it’s rarely used on its own. Combining particles with different structural and water-retention properties allows for the creation of nearly limitless bonsai mixes.
  • Akadama is highly porous in nature, and favors faster drainage. It also helps in spreading nutrients to your bonsai tree roots. It ticks off all the necessary requirements succulents needs for proper growth.

How to choose a good soil and soil amendments

Does the idea of finding a fantastic soil and soil amendments make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in soil and soil amendments. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top soil and soil amendments products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top soil and soil amendments on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top soil and soil amendments brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top soil and soil amendments based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the soil and soil amendments were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good soil and soil amendments, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your soil and soil amendments.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting soil and soil amendments for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our soil and soil amendments. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what soil and soil amendments should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on soil and soil amendments.