Best Soil Amendments For Lawns (2024 Updated)

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As a homeowner, you want your lawn to look lush and healthy all year round. However, achieving this requires more than just regular watering and mowing. The quality of your lawn's soil plays a critical role in determining its overall health and appearance. Soil amendments are an excellent way to improve the quality of your lawn's soil and promote healthy grass growth.

When looking for the best soil amendments for lawns, there are several key points to consider. Firstly, you need to consider your soil type and pH level. Different soil types require different amendments, and the pH level of your soil can affect nutrient availability. Secondly, you need to consider the nutrient needs of your lawn. Nitrogen, phosphorus, and potassium are essential macronutrients that your grass needs to grow healthy and strong. Thirdly, you should consider the organic matter content of your soil. Adding organic matter can improve soil structure, water retention, and nutrient availability. Fourthly, you need to consider the season and climate in your area. Some amendments may be more effective in certain seasons or climates than others. Lastly, you should consider the cost and availability of the amendments.

In summary, when looking for the best soil amendments for your lawn, consider your soil type and pH level, your lawn's nutrient needs, the organic matter content of your soil, the season and climate in your area, and the cost and availability of the amendments. By taking these factors into account, you can choose the best soil amendments for your lawn and achieve a healthy, vibrant, and beautiful lawn all year round.

10 Best Soil Amendments For Lawns

1. The Andersons Biochar Dg Organic Soil Amendment – Covers Up To 15,000 Sq Ft (30 Lb)

The Andersons BioChar DG Organic Soil Amendment is a powerful tool for improving soil health and promoting plant growth. This product is specially formulated to attract essential nutrients, beneficial bacteria, and water, making them more available for plants to absorb. By building rich, carbon-heavy soil, this amendment reduces the need for fertilizer and helps plants thrive.

One of the standout features of this product is its easy-to-apply, spherical, uniform, low-dust formulation. This is made possible by DG Technology, which allows particles to disperse with water, moving immediately into the soil. This makes it an ideal choice for seeding and composting applications on lawns, gardens, flower beds, potted plants, and more.

The Andersons BioChar DG Organic Soil Amendment is designed to cover up to 15,000 sq ft with its 30 lb bag. This makes it an excellent value for homeowners and landscapers looking to improve soil health and promote plant growth across a large area. However, it is important to note that this product is not for sale in California and Oregon.

Overall, The Andersons BioChar DG Organic Soil Amendment is a versatile and effective tool for improving soil health and promoting plant growth. Its unique formulation, coupled with DG Technology, makes it easy to apply and highly effective at delivering essential nutrients and water to plants. Whether you are a homeowner or a professional landscaper, this product is a great choice for promoting healthy, vibrant plants.

2. Lawnbox Soil Saver 100% Organic Gypsum And Humic Acid Soil Amendment 15 Lb Bag Covers 2,500 Sq Ft

The Lawnbox Soil Saver is a 100% organic soil amendment that is specially designed to improve soil structure and drought tolerance. This product is OMRI listed, which means that it has been certified to be safe for use on all turf and soil types. The product is made of gypsum, humic acid, calcium, and sulfur, which are all essential nutrients for healthy plant growth.

One of the major benefits of using Lawnbox Soil Saver is that it helps to loosen hard-packed soils. This is important because hard-packed soils can prevent water and nutrients from reaching plant roots. By improving soil structure, the product allows water and nutrients to penetrate deeper into the soil, which can promote healthier root growth and stronger plants. Additionally, the improved soil structure can help plants to withstand drought conditions by retaining moisture more effectively.

Another benefit of Lawnbox Soil Saver is that it enhances nutrient uptake. This is because the product contains humic acid, which is a natural chelator. Chelators help to make nutrients more available to plant roots, which can improve plant growth and overall health. By providing a rich source of nutrients, Lawnbox Soil Saver can also help to reduce the need for chemical fertilizers, which can be harmful to the environment.

Using Lawnbox Soil Saver is easy. Simply apply the product to your lawn or garden using a spreader, and then water thoroughly. The product is safe for use on all turf and soil types, and is suitable for both residential and commercial applications. Each 15 lb bag of Lawnbox Soil Saver can cover up to 2,500 sq ft of area, making it a cost-effective solution for improving soil health and promoting plant growth.

Overall, Lawnbox Soil Saver is an excellent choice for anyone looking to improve the health and vitality of their lawn or garden. With its organic formula, easy application, and numerous benefits, this product is sure to deliver excellent results for your plants and soil. So why wait? Try Lawnbox Soil Saver today and see the difference for yourself!

3. Mag-I-Cal Plus Soil Food For Lawns In Alkaline & Hard Soils – 5,000 Sq. Ft.

Jonathan Green (11356) Mag-I-Cal Plus Soil Food for Lawns in Alkaline & Hard Soils is a highly effective soil amendment for grass. It is a unique, multi-faceted, soil-enhancing food that is specifically designed to loosen hard soil and stimulate soil microbes. With a coverage area of 5,000 square feet, this product is perfect for larger lawns.

One of the key benefits of Jonathan Green (11356) Mag-I-Cal Plus Soil Food is that it effectively lowers soil pH. This is important because much of your lawn food is wasted when soil pH is too high. By lowering the pH of the soil, grass roots can better absorb nutrients, resulting in a healthier and more vibrant lawn.

In addition to lowering soil pH, this soil food also breaks up clay and compacted soils. This is important because compacted soil can prevent grass roots from getting the oxygen and nutrients they need to grow. By breaking up compacted soil, Jonathan Green (11356) Mag-I-Cal Plus Soil Food allows grass roots to spread out and access more nutrients and moisture.

Another benefit of this soil food is that it stimulates soil microbes. Soil microbes are essential for a healthy lawn because they break down organic matter and release nutrients that grass roots can absorb. By stimulating soil microbes, Jonathan Green (11356) Mag-I-Cal Plus Soil Food helps to create a thriving ecosystem in your lawn.

Overall, Jonathan Green (11356) Mag-I-Cal Plus Soil Food for Lawns in Alkaline & Hard Soils is a highly effective soil amendment that can help to transform your lawn. With its unique blend of soil-enhancing ingredients, this product can help to improve soil health, lower soil pH, and promote healthy grass growth. Whether you have a large or small lawn, Jonathan Green (11356) Mag-I-Cal Plus Soil Food is a great choice for anyone looking to improve the health and appearance of their grass.

4. Mag-I-Cal Soil Food For Lawns, 5,000 Sq. Ft. – Acidic Soil Amendment For Grass.

Jonathan Green's Mag-I-Cal Soil Food for Lawns in Acidic Soil is a highly effective soil amendment that helps to rapidly raise soil pH levels and improve water uptake in lawns. This natural soil food is safe to use around children and pets, making it an ideal choice for homeowners who want to keep their lawn healthy and lush.

When soil pH levels are too low, between 20 percent and 70 percent of lawn food is wasted. This can lead to lackluster lawn color, increased stress on the grass, and poor soil texture. However, with the help of Mag-I-Cal Soil Food, homeowners can quickly and easily raise their soil pH levels and give their lawn the nutrients it needs to thrive.

This soil amendment is incredibly easy to use. Simply spread it over your lawn using a lawn spreader, and water it in. Mag-I-Cal Soil Food will work its magic, helping to improve soil structure, reduce stress on the grass, and boost lawn color.

One 5M bag of Mag-I-Cal Soil Food is equivalent to five bags of pelletized lime, making it a cost-effective choice for homeowners looking to improve their lawn's health. And because it is made from natural ingredients, there is no need to worry about harmful chemicals or additives.

Overall, Jonathan Green's Mag-I-Cal Soil Food for Lawns in Acidic Soil is a must-have for any homeowner looking to keep their lawn healthy and lush. With its ability to rapidly raise soil pH levels, improve water uptake, and boost lawn color, this natural soil food is sure to become a staple in any lawn care regimen.

5. Usa-Made Organic Dolomite Lime For Gardens And Lawns. A Calcium/magnesium Additive That Stabilizes And Raises Ph Levels. Effectively Treats Blossom End Rot In Tomatoes.

Organic Dolomite Lime is a mineral fertilizer that is all-natural and ideal for use in organic production. This product is made in the USA and supplies essential nutrients such as calcium and magnesium to your garden. It sweetens your soil, improving plant growth and maximizing fertilizer performance.

One of the unique features of this product is that it raises and stabilizes soil pH. This makes it perfect for use in Earthboxes and other types of container gardens. Additionally, it is an ultra-fine powder that reacts rapidly, preventing and curing blossom end rot in tomatoes and peppers.

The packaging of this product is resealable and easy to pour. It comes in a 5-pound heavy-duty pouch that is designed for long-term storage. You can easily pour the necessary quantity of dolomite lime and store the rest for future use.

Cz Garden Organics is a company committed to developing premium grade custom soil amendment blends, fertilizers, and nutrients for your organic garden. Their products are manufactured in the USA from the highest quality ingredients, ensuring that you can buy with confidence.

Overall, Organic Dolomite Lime is an excellent choice for those looking to improve the health and growth of their plants and gardens. It is an all-natural and organic solution that provides essential nutrients, stabilizes soil pH, and cures blossom end rot in tomatoes and peppers. With its easy-to-use packaging and made-in-the-USA quality, it is an ideal choice for anyone looking to improve their garden's health and vitality.

6. Mag-I-Cal Plus Soil Food For Lawns In Acidic & Hard Soils – 5,000 Sq. Ft.

Jonathan Green's Mag-I-Cal Plus Soil Food for Lawns in Acidic & Hard Soils is a premium soil amendment that is designed to help lawns thrive in soil with pH levels between 6.2 and 7.0. If soil pH is below this range, grass will become light green, weeds will persist, and fertilizer nutrients won't be fully absorbed. Mag-I-Cal Plus rapidly and efficiently raises soil pH, allowing grass to grow lush and healthy.

One of the key benefits of Mag-I-Cal Plus is that it helps break up clay and compacted soils. This improves root penetration and promotes growth by increasing biological activity and releasing nutrients trapped in the soil. By loosening hard soils, Mag-I-Cal Plus creates a better environment for your lawn to grow and thrive.

Another benefit of Mag-I-Cal Plus is that it increases the ability of your grass to utilize nutrients in the soil. Lawn fertilizer is wasted when soil pH is not balanced. When the soil chemistry is balanced, the nutrients are able to be absorbed. This means that you can spend less money on fertilizer and still achieve a greener, healthier lawn.

Mag-I-Cal Plus also contains calcium, which is vital to many grass plant functions. Calcium is readily available in Mag-I-Cal Plus for plant uptake or pH adjustment. By providing your lawn with this essential nutrient, you can ensure that your grass is healthy and strong.

This 18 lb bag of Mag-I-Cal Plus covers up to 5,000 sq. ft and can be used in spring, summer, or fall. It's easy to use and provides complete coverage for your lawn. To ensure that you're using Mag-I-Cal Plus correctly, you can use the Jonathan Green Pro pH & Moisture Soil Tester (11100) or Soil pH Test Kit for Lawns (11595) to measure the soil pH of your yard.

Overall, Jonathan Green's Mag-I-Cal Plus Soil Food for Lawns in Acidic & Hard Soils is an excellent choice for anyone who wants to improve the health and appearance of their lawn. With its ability to raise soil pH, loosen hard soils, and encourage nutrient absorption, Mag-I-Cal Plus is a must-have for any lawn care enthusiast.

7. Organic Soil Conditioner For Plants, Provides Silica And Micronutrients (3 Lb)

Harvest Gold Organics offers a premium soil conditioner that is a natural and safe solution for plant and garden care. Their all-natural micronutrient blend for plants is certified organic and free of harmful chemicals, making it safe for pets and children. The company prides itself on providing a product that is good for plants, people, and the planet.

The organic soil amendment is approved for organic gardening and is designed to address specific nutrient deficiencies, reduce water use, and loosen heavy clay soil. It consists of 100% organic nutrients, with no fillers, enriching gardens with the best the earth has to offer. The unique silica and mineral blend is guaranteed to maximize growth and blooms, improving the health and beauty of grass, trees, shrubs, herbs, flowers, fruits, vegetables, and more.

Harvest Gold Organics Premium Soil Conditioner is a versatile, all-natural soil amendment for indoor and outdoor plants, lawns, and gardens. The micronutrient blend of silica and nine naturally occurring beneficial plant minerals from mother earth is guaranteed to maximize plant growth and durability. The product increases water and nutrient uptake, helping plants to grow strong, vibrant, and beautiful while protecting against mold, disease, and environmental stress.

The soil builder is a pet-safe, natural lawn repair solution, perfect for stubborn lawn patches. It is designed to optimize water consumption, increase nutrient uptake, and make lawns strong and resilient. The company believes that plant and garden care products should be safe for pets and people, and their product is free of harmful chemicals, making it an ideal choice for households with children and pets.

Harvest Gold Organics Premium Soil Conditioner is a natural and safe solution for plant and garden care, offering a unique blend of silica and micronutrients that promote plant growth and health. The product is certified organic and free of harmful chemicals, making it safe for pets and children. With its ability to address specific nutrient deficiencies, reduce water use, and improve soil quality, the soil amendment is an ideal choice for indoor and outdoor plants, lawns, and gardens.

8. 4 Pack Of Michigan Peat Baccto 1640 Wholly Cow Horticultural Compost And Manure For Soil Amendment, Lawn Care, And Garden Beds In 40 Quart Bags.

Michigan Peat Baccto 1640 Wholly Cow Horticultural Compost and Manure is a natural and effective soil amendment that is perfect for lawn care and garden beds. This product comes in a 40 quart bag, and customers can purchase a 4 pack.

One of the standout features of this product is the natural ingredients used to create it. Wholly Cow Compost and Manure is made up of natural peat and composted animal manure that has been mixed together. This ensures that the compost is high in nutrients and provides an ideal environment for plants to grow.

This compost is perfect for a wide range of gardening activities. For example, it can be used to top-dress lawns and planting beds. Additionally, the odor-free cow compost and manure can be used to amend soil for a variety of plantings, including vegetables and flowers.

Another great feature of this product is its water holding capacity. The compost has a natural ability to retain moisture, which is beneficial for root health. This means that customers can water their plants less frequently and enjoy more time between watering sessions.

The compost is screened for uniform consistency, ensuring that it is easy to work with and provides a consistent environment for plants to grow. Each bag of compost is 40 quarts, and each 4 pack weighs 38 pounds. The dimensions of each bag are 22.50 x 17.50 x 5 inches.

Overall, Michigan Peat Baccto 1640 Wholly Cow Horticultural Compost and Manure is a fantastic product for anyone looking to improve their lawn or garden. Its natural ingredients, high-nutrient content, and water holding capacity make it an ideal choice for a wide range of plantings.

9. Organic Bioag Ful-Humix Humic Acid Soil Amendment For Increased Yield And Nutrient Uptake (5 Lb)

BioAg Ful-Humix Organic Humic Acid Soil Dry Amendment is a powerful and effective tool for creating a healthier growing environment for all plants and lawns. This product is made from concentrated humic/fulvic powder that conditions your soil with stable organic carbon matter, which improves nutrient uptake and produces bigger yields. It can be used in soil, hydroponics, or soilless media.

One of the key benefits of BioAg Ful-Humix is that it provides a full spectrum of humic acid. This is due to the unique processing methods used by BioAg, which allows for the retention of all bio-active humic and fulvic acid components. This encourages the growth of helpful microbial and fungal activity in your soil, which is essential for healthy plant growth.

Using BioAg Ful-Humix is easy and versatile. It can be applied as a dry powder or can be used to make compost teas. When using as a dry powder, simply spread the product in commercial agriculture settings or in home gardens. The product can be easily absorbed at nearly 90% efficiency into compost teas, leaving a mineral-rich residue for cultivation into soil.

BioAg is committed to quality assurance, and every production run of Ful-Humix is tested with HPTA approved test method to ensure top performance. This product is made in the USA and can be trusted to deliver consistent and reliable results.

BioAg Ful-Humix is suitable for use on all plants and lawns. It can be used on hemp, turf grasses, tomato plants, vegetables, fruit, berries, and more. It enhances seed germination and soil conditioning, and protects plants against sub-optimal nutrients, light, and temperature stresses.

In summary, BioAg Ful-Humix Organic Humic Acid Soil Dry Amendment is a powerful and effective tool for creating a healthier growing environment for all plants and lawns. It provides a full spectrum of humic acid and encourages helpful microbial and fungal activity in your soil. It is easy to apply and can be used in a variety of settings. BioAg is committed to quality assurance and this product is made in the USA. It is suitable for use on all plants and lawns and enhances seed germination and soil conditioning, while protecting against sub-optimal conditions.

10. Organic Fulvic Acid Plant Amendment For Lawn And Garden Growth And Health (8 Oz)

Mr. Fulvic Organic Fulvic Acid Plant Amendment is a natural humic soil and hydroponic nutrient enhancer that promotes lawn and garden growth and plant health. This liquid organic solution is derived from a unique deposit of humic shale that is more than thirty million years old, making it an excellent source of organic fulvic/humic minerals.

With Mr. Fulvic, gardeners can watch their lawns and gardens thrive as it increases nutrient absorption, leading to more vigorous growth and overall health of plants. It is compatible with any growing system, whether you are using hydropoinic, aquaponic, or soil methods. This product is naturally safe and can be used with all nutrient product lines.

Mr. Fulvic is a staple in every garden, as it can be used on a wide range of plants, including blueberry bushes, tomato plants, lemon trees, seeds, and more. Whether you are a professional or garden hobbyist, Mr. Fulvic will take your growing operation to its fullest potential.

The organic fulvic/humic minerals found in Mr. Fulvic are essential for plant growth and development. They enhance the uptake of nutrients and water, improving the plant's ability to withstand stresses such as drought and disease. Additionally, these minerals improve soil structure, increasing its water-holding capacity, and reducing soil erosion.

Mr. Fulvic is easy to use, simply dilute the solution in water and apply it to your plants or soil. The recommended application rate is one to two ounces per gallon of water, depending on the stage of plant growth and the size of your garden.

By using Mr. Fulvic, gardeners can ensure that their plants receive the essential nutrients they need for healthy growth and development. This product is an excellent investment for anyone looking to improve the health and productivity of their garden, whether you are a professional or a hobbyist. So, order your 8-ounce bottle of Mr. Fulvic Organic Fulvic Acid Plant Amendment today and see the difference it can make in your garden.

Best Soil Amendments For Lawns FAQs

Are there any specific soil amendments that are particularly beneficial for lawns in dry or humid climates?

In dry climates, it is beneficial to add organic matter to the soil to improve water retention and reduce evaporation. Compost, peat moss, and vermiculite are common soil amendments that can improve soil structure and moisture retention. Additionally, adding a layer of mulch on top of the soil can help retain moisture and regulate soil temperature.

In humid climates, soil amendments that improve drainage can be beneficial. Adding sand or perlite to the soil can improve drainage and prevent waterlogging, which can lead to root rot and other issues. Additionally, applying lime to acidic soils can improve nutrient uptake and promote healthy root growth.

Overall, it is important to choose soil amendments based on the specific needs of your lawn and the climate in your area. Consulting with a lawn care professional can help you determine the best soil amendments for your lawn.

How do soil amendments such as compost, peat moss, and vermiculite affect the pH balance of soil?

Soil amendments such as compost, peat moss, and vermiculite can affect the pH balance of soil in different ways. Compost is typically slightly acidic, so it can lower the pH of alkaline soil, making it more neutral. Peat moss is also acidic and can lower the pH of soil, making it more acidic. Vermiculite is pH neutral and does not affect the pH balance of soil.

The pH of soil is important for plant growth as it affects nutrient availability. Different plants thrive in different pH levels, so it's important to understand the pH needs of the plants you are growing. Soil amendments can be used to adjust the pH of soil to create optimal growing conditions for plants.

It's important to note that the effects of soil amendments on pH balance can vary depending on the type and amount of amendment used, as well as the starting pH of the soil. It's recommended to test the pH of soil before and after adding amendments to ensure the desired pH level is achieved.

How often should soil amendments be applied to maintain a healthy and vibrant lawn?

Soil amendments should be applied to maintain a healthy and vibrant lawn at least once a year. The best time to apply soil amendments is during the fall season when the grass is still growing, but the temperatures are cooler. This allows the nutrients to be absorbed by the roots and stored for the winter months. However, depending on the soil quality and the type of grass, additional applications may be necessary throughout the year. It is important to test the soil regularly to determine which nutrients are lacking and adjust the fertilizer accordingly. Over-fertilizing can damage the lawn and cause excessive growth, which can lead to disease and insect problems. Therefore, it is recommended to follow the instructions on the fertilizer bag and apply only the recommended amount. Additionally, organic soil amendments, such as compost and manure, can be applied every two to three years to improve soil structure and fertility.

What are the most effective soil amendments for improving the health and appearance of a lawn?

The most effective soil amendments for improving the health and appearance of a lawn are organic matter, compost, and fertilizers. Organic matter such as peat moss or compost improves soil structure, increases water and nutrient retention, and provides essential nutrients to plants. Compost also introduces beneficial microorganisms that help break down organic matter and improve soil health. Fertilizers provide essential nutrients such as nitrogen, phosphorus, and potassium that grass needs for growth and development. However, it is important to use fertilizers correctly and not overuse them as excessive amounts can harm the environment and promote weed growth. Additionally, soil testing can help determine any deficiencies or imbalances in nutrients, allowing for more targeted and effective soil amendments.

What role do soil amendments play in promoting root growth and reducing water runoff in lawns?

Soil amendments play a crucial role in promoting root growth and reducing water runoff in lawns by improving soil structure and nutrient availability. Soil amendments such as compost, peat moss, and vermiculite enhance soil water-holding capacity, increase soil aeration, and improve drainage. These amendments also add organic matter that provides nutrients to plants, improves soil structure by increasing soil aggregation, and enhances the soil's ability to retain moisture.

Moreover, soil amendments such as gypsum and lime can improve soil pH, which helps in nutrient absorption and root growth. By promoting root growth, soil amendments increase the surface area of the soil available for water absorption, reducing water runoff.

In summary, soil amendments are essential for promoting root growth and reducing water runoff in lawns by enhancing soil structure, improving nutrient availability, and increasing soil water-holding capacity.

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