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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$34.92
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Organic soil amendment to provide nutrients to your plants. Comes in a 50 lb bag.
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$35.75
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An all-natural soil conditioner that permanently enhances the structure of any soil.
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$50.61
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An all-natural and organic sphagnum peat moss soil amendment and ideal for organic gardening and production.
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$17.02
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An organic lime supplement, formulated with 100 percent organic ingredients that contains no fillers and sledges.
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$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.
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$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!
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.
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$20.73
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An organic soil conditioner that promotes root growth and helps loosen clay soils for gardens, lawns and shrubs.
$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.
$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 tablets that restore and maintain tree and landscape cultures
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$24.21
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A natural soil amendment that boosts the effect of fertilizers on lawns and provides magnesium and calcium.
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$23.91
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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.
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$20.77
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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.
$48.76
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An organic planting soil that is Ideal for organic vegetable gardens, flowers, shrubs and trees.
$19.88
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An organic blend of ingredients that promotes root growth and improve moisture retention of all seedlings and cuttings.
$92.20
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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.
$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.
$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.

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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