Soil Amendments & Conditioners

Items 1 - 24 (of 79 Total) Sort By:
CAL FLO Liquid Limestone
4.5 out of 5 stars (6)
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A liquid limestone that quickly changes the soils pH level as needed in agricultural or turf-grass applications.

Espoma Soil Acidifier
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A soil acidifier that has all organic ingredients that acidifies or lowers the pH of the soil for Hydrangeas and Blueberries.

Hi-Yield Aluminum Sulfate
Multiple sizes available
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This acidifies the soil to lower the pH for a acid soil condition for Azaleas, Rhododendrons and Gardenias.

Hydretain RTS
3.5 out of 5 stars (2)
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A water surfactant that holds water vapor in the plants that reduces watering by up to 50% and improves soil penetration.

Turface Athletics Pro League Heritage Red
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A superior conditioner with rich red color and patented particle size for an ultimate fielding and sliding surface.

Sun Bulb Better-Gro Phalaenopsis Orchid Potting Mix
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A peat moss mixture that has the ideal moisture that is formulated for the orchid root and plant growth.

Soil Moist Granules
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Soil Moist stores water for plants and releases water as needed. Saves up to 50% in watering!

Sun Bulb Better-Gro Special Orchid Mix
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An all-natural and 100% organic potting mix that is highly porous for excellent drainage and root ventilation for Orchids.

Natural Guard Soil Activator
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A all-natural based soil activator to return the nutrients that are needed for lawn and garden soil.

Espoma Organic Vermiculite
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Vermiculite aerates compacted soil so plants can absorb more nutrients with the loosened soil and keeping it well-drained and healthy.

Espoma Soil Perfector
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An all-natural soil conditioner that permanently enhances the structure of any soil.

Sprint 138
5 out of 5 stars (2)
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A 6% fully chelated EDDHA iron that prevents iron chlorosis by maintaining and protecting iron availability in the most challenging soils that are alkaline or calcareous.

Pennington Pelletized Dolomitic Limestone
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A pelletized Dolomitic Limestone that raises the pH level in soil to provide the levels of calcium and magnesium.

Pennington Fast Acting Lime
Multiple sizes available
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A fast acting Lime that raises the pH levels in soil and last for up to 4 months for better growth of lawns.

Sprint 330
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A 10% fully chelated DTPA Iron and water-soluble manganese combination that helps correct specific mineral deficiencies in slightly acid to slightly alkaline soil.

Turface Athletics Pro League Red
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A superior conditioner with rich red color and patented particle size for an ultimate fielding and sliding surface.

Southern Ag Black Snake Sulfur
2.5 out of 5 stars (2)
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A Sulfur that is used to correct soil alkalinity and lower pH levels in soil for azaleas, hydrangeas and blueberries.

Gordons Bov-A-Mura Nutrient Supplement 5-0-0
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A professional nutrient supplement for an effective natural turf-grass management programs on sports turf, golf courses, parks, and lawns.

Bailey Nurseries Color Me Pink
5 out of 5 stars (2)
Multiple sizes available
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Bailey Nurseries and Bonide have teamed up to bring an all natural way to "sweeten" the soil to turn Hydrangeas pink.

Profile FlocLoc
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A flocculating soil moderator that clots soil particles suspended in water dropping them from runoff.

Turface Field and Fairway Emerald
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The ideal choice for conditioning native soil sports turf.

Hi-Yield Horticultural Hydrated Lime
Multiple sizes available
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A lime that corrects soil acidity for shrubs, flowers, vegetables, lawns and house plants.

Espoma Garden Lime
5 out of 5 stars (1)
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An organic lime supplement, formulated with 100 percent organic ingredients that contains no fillers and sledges.

Axilo Mix 5 (0-0-0)
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A water soluble chelated micro-nutrients fertilizer that is compatible with fertilizers and pesticides for vegetable crops to golf courses.


Soil Amendments & Conditioners for Garden Soil Preparation

While pest and disease control, fertilizing, and proper planting techniques are key parts to your landscape and garden success, the quality of your soil can greatly impact the quality of your plants more than any other factor. Doing some garden soil preparation can save you a lot of time and bring you more healthy plants. Instead of bringing in pounds and pounds of packaged topsoil, you can use soil amendments to improve the soil’s properties.


See also: Lawn & Garden Pest Control

Soil Amendments

Soil amendments, also called soil conditioners, are materials added to your soil that aim to improve aspects of your soil, like water retention, permeability, drainage, aeration, and structure. Your soil should be able to support the roots of your plants while providing the optimal environment for growth. Soil amendments are thoroughly mixed into the soil, not laid on top like mulch. 

Types of Soil Amendments & Conditioners

The end results you’re looking for will determine which type of soil amendment you choose. Organic soil amendments include sphagnum peat, wood chips, grass clippings, straw, compost, manure, biosolids, sawdust, and wood ash. Inorganic soil amendments are manmade or mined, and include vermiculite, perlite, pea gravel, and sand. Organic products have the added benefit of containing nutrients and serve as a food source for beneficial fungi, bacteria, and earthworms, and are the best soil amendments for vegetable gardens. 

Using Soil Amendments 

Before choosing something to add to improve your soil, you should first assess your soil’s condition and research before adding anything to your soil. Soil testing can help you determine what you soil needs in order to better support plant growth. You can order soil tests, which will tell you the current pH, levels of nutrients (phosphorus, potassium, calcium, magnesium, zinc, manganese), and any fertilizer recommendations. These tests can make it clearer on the amendments you might need for your soil. 


Along with a soil test, you need to diagnose your soil as heavy (clay-based) or light (sand-based) because certain combinations of soils and amendments can make your soil worse. For example, difficult clay soils need to be porous, permeability, aeration, and drainage and you could use peat, wood chips, tree bark, or straw; adding sand to clay can make it even more compacted, similar to concrete. Sandy soils need to be able to hold water and nutrients and benefit from decomposed organic materials.


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