Soil Amendments & Conditioners

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 health 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. 

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4.5 out of 5 stars (43)
$79.98
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A liquid limestone that quickly changes the soils pH level as needed in agricultural or turf-grass applications.
4 out of 5 stars (13)
$35.85
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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.
5 out of 5 stars (4)
$87.11
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A specially formulated soil conditioner that helps improve the health and vitality of your soil.
4.5 out of 5 stars (9)
$34.92
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Organic soil amendment to provide nutrients to your plants. Comes in a 50 lb bag.
4 out of 5 stars (12)
$23.96
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Multiple sizes available
A soil conditioner formulated with 90% Sulfur to create acidic soil conditions for acid loving ornamentals.
5 out of 5 stars (5)
$20.91
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Helps correct chlorosis and prevent yellowing of foliage and faded-out look in your lawns, shrubs and other plants caused by iron deficiency.
3 out of 5 stars (4)
$35.78
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A dust-free limestone pellet that helps neutralize soil acidity while also supplying essential calcium and magnesium.
5 out of 5 stars (3)
$76.55
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A homogeneous dispersing granule formula that delivers available sulfur, calcium, and Humate to a wide variety of vegetable, field and horticultural crops.
5 out of 5 stars (2)
$20.76
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Multiple sizes available
This acidifies the soil to lower the pH for a acid soil condition for Azaleas, Rhododendrons and Gardenias.
5 out of 5 stars (5)
$122.37
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A professional fully chelated EDDHA iron that prevents iron chlorosis by maintaining and protecting iron availability in the most challenging soils that are alkaline or calcareous.
5 out of 5 stars (1)
$21.05
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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.
5 out of 5 stars (9)
$57.45
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Multiple sizes available
A patented root zone moisture managment technology that effectively reduces overall watering requirements by 50%.
$84.84
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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.
5 out of 5 stars (3)
$35.75
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An all-natural soil conditioner that permanently enhances the structure of any soil.
$17.68
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A soil conditioner of Dolomite Lime to correct the soil acidity for growing lawns, ornamental plants and vegetables.
5 out of 5 stars (2)
$92.82
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Multiple sizes available
A water soluble chelated micro-nutrients fertilizer that is compatible with fertilizers and pesticides for vegetable crops to golf courses.
4.5 out of 5 stars (2)
$177.85
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Soaker Plus is a non-ionic, low foam, wetting agent that penetrates the soil to improve drying soils and corrects water repellent problems.
4 out of 5 stars (1)
$153.21
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A specialized product in root zone moisture management that converts soil moisture vapor into plant-usable water droplets.
5 out of 5 stars (1)
$18.29
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Multiple sizes available
A special formula that helps loosen compacted soil while promoting root growth.
5 out of 5 stars (1)
$19.85
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Multiple sizes available
A lime that corrects soil acidity for shrubs, flowers, vegetables, lawns and house plants.
5 out of 5 stars (2)
$19.31
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Multiple sizes available
A granular soil amendment that corrects yellowing of plants and grasses to green fast.
2.5 out of 5 stars (2)
$21.36
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A unique formula that helps correct soil alkalinity and establishes an acid soil condition.
5 out of 5 stars (2)
$44.15
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Multiple sizes available
A all-natural potting soil that will assist plants pursuing nutrients from the ground with microbes and other organic matter.
5 out of 5 stars (1)
$6.72
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Multiple sizes available
Soil Moist stores water for plants and releases water as needed. Saves up to 50% in watering!
5 out of 5 stars (2)
$17.02
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An organic lime supplement, formulated with 100 percent organic ingredients that contains no fillers and sledges.
5 out of 5 stars (1)
$18.49
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A highly effective soil conditioner that helps boost nutrients, the effectiveness of fertilizer, and lessens weeds and moss on lawns, gardens, and ornamental beds.
5 out of 5 stars (1)
$80.50
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A high-porosity growing medium for water-sensitive crops.
3 out of 5 stars (2)
$25.80
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Multiple sizes available
A mineral supplement that will quickly turn plants from yellow to green, and is great for use in lawns, trees, flowers, shrubs, and vegetables.
4.5 out of 5 stars (18)
$17.76
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Multiple sizes available
A natural and organic plant source of humic acid to enrich the soil indoor plants to outdoor lawn and gardens.
$22.01
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A soil amendment that lowers the pH of the soil and have it become more acidic for Azaleas, Gardenias, Rhododendron and Hydrangeas.
4.5 out of 5 stars (2)
$53.88
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A coconut coir fiber potting mix made from coconut husks that resists compaction, absorbs evenly for aeration and drainage. Allows for less watering!
$27.37
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A plant supplement that turns plants from yellow to green and promotes a darker green color on lawns, ornamental trees and shrubs.
2 out of 5 stars (1)
$36.50
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An organic and pH-balanced soil media designed to promote optimal seed germination and enhance root development.
$89.04
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A professional soil amendment formula that may aid in the uptake of micro-nutrients for soil and foliar applications.
5 out of 5 stars (1)
$20.73
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An organic soil conditioner that promotes root growth and helps loosen clay soils for gardens, lawns and shrubs.
$442.34
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A soil surfactant that can withstand any stress, wet and dry conditions and provides better moisture access and gas exchange.
$19.74
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An organic potting mix made for cactus but may also be used for palm and citrus plants.
5 out of 5 stars (1)
$59.94
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A natural mineral substance which can be used as an agricultural fertilizer and soil amendment product.
$204.57
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A commercial moisture management tool designed to manage localized dry spot in soils.
$19.88
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An organic blend of ingredients that promotes root growth and improve moisture retention of all seedlings and cuttings.
$17.62
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An all-natural and organic soil mix for orchids and other epiphytic plants.
$37.98
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Advanced microbial soil tablets for agriculture, horticulture, and hydroponics.
$37.98
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Advanced soluble microbial tablets that restore and maintain fruit and vegetable gardens and flower bed cultures.
$37.98
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Advanced soluble tablets that restore and maintain tree and landscape cultures
$447.88
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A professionally developed surfactant with superior soil resource enhancement to achieve fast, firm, and fine turf.
4 out of 5 stars (2)
$24.21
Out of Stock
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A natural soil amendment that boosts the effect of fertilizers on lawns and provides magnesium and calcium.
5 out of 5 stars (1)
$23.91
Out of Stock
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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.
5 out of 5 stars (2)
$50.61
Out of Stock
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An all-natural and organic sphagnum peat moss soil amendment and ideal for organic gardening and production.
5 out of 5 stars (1)
$20.77
Out of Stock
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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.
$72.12
Out of Stock
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Specially formulated to help lower the pH and correct excess alkalinity in the soil.
$17.96
Out of Stock
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A peat moss mixture that has the ideal moisture that is formulated for the orchid root and plant growth.
$18.62
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An all-natural and 100% organic potting mix that is highly porous for excellent drainage and root ventilation for Orchids.
$23.80
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A hydrated lime that quickly raises soil pH level to optimize conditions for better growth of plants and lawns.
$15.67
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A medium grade Fir Bark for those who like making their own custom blend bark mix.
$48.76
Out of Stock
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An organic planting soil that is Ideal for organic vegetable gardens, flowers, shrubs and trees.
$92.20
Out of Stock
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A blend of peat moss and perlite that is pH adjusted with good water retention as well as good drainage, ideal for young plants.
$73.35
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A professional blend of fulvic acid that helps in early season root development, and improves a fertilizers performance and faster seedling growth as a fertilizer additive.
$44.16
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An organic potting soil that is ideal for Herbs, Vegetables, Indoor Gardens, Container Plants, Flowers, Houseplants, Hanging Baskets and Patio Containers.
$43.58
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An organic planting mix that is Ideal for English Teas, Flowers, Hybrid Teas, Mini Roses, Climbers, Annuals & Perennials.
$175.37
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An effective and convenient binding agent that exceeds the requirements for non alphastic tacking emulsions.
$58.77
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An organic planting mix that has a balanced blend of organic nutrients that is ideal for flowers, trees, shrubs, vegetables, ground covers and seed cover.
$23.46
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An all purpose organic mix that promotes root growth and improves the water uptake of the plants.
$22.54
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An all-natural and organic Perlite which helps improve heavy soils by loosening the compact soil.
$45.58
Out of Stock
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An effective clay conditioner perfect to use for all level of play and professional sports field.
$143.94
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A professional natural and organic fertilizer that helps in expanding the soil surface and allows greater access to water and micro-nutrients and contains mycorrhizae fungi.
$19.72
Out of Stock
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An organic sphagnum peat moss that improves aeration, moisture retention to promote root growth in heavy soils.
$67.69
Out of Stock
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A finely screened soil conditioner with earthworm castings and beneficial microbes for root development.
$47.05
Out of Stock
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Dark reed sedge peat that adds nutrients to sandy soils, as well as breaks up heavy clay soils easily. Perfect for top dressing for lawns and gardens.
$45.83
Out of Stock
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An organic-based fertilizer that saves water, solves soil problems, and provides additional iron.
$294.11
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A professional soil surfactant that quickly solves water movement issues at and below the soil surface.
$162.20
Out of Stock
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A granulated iron micro-nutrient for lawns, ornamental, garden landscaping and trees.
$48.10
Out of Stock
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A patented blend of humectants and surfactants developed to accelerate root development throughout the entire growing season.
$50.78
Out of Stock
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A patented blend of ready-to-use humectants and surfactants designed to accelerate root development throughout the entire growing season.
$332.84
Out of Stock
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An all-purpose tackifier that effectively binds and is proven to immediately reduce water runoff and soil erosion.
$27.12
Out of Stock
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A surfactant formulation which helps maximize the use of water by moving it deeper into the soil for dry or hard soils in a ready-to-spray hose-end bottle.
$22.92
Out of Stock
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Contains sphagnum peat moss and organic matter to condition the soil in your garden or lawn.
$49.00
Out of Stock
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Innovative granular mulch created from cellulose fiber and recycled wood that expands quickly and disperses, providing excellent protection and rapid water absorption on seeded areas.

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.

See also: Lawn & Garden Pest Control

 

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