Soluble borate for fluid fertilizers and nutrient sprays. Boron is essential for all stages of tree growth and fruit set. Powder mixes easily in any spray solution.
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Contains over 67 minerals beneficial to plants and animals. A mix or particle sizes. Lots of powder, but still less dusty than Micronized Azomite.
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Contains over 67 minerals beneficial to plants and animals, including rare earth elements. Very fine powder provides a quick release of nutrients. For slow-release longer-lasting applications.
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A paramagnetic stone powder for remineralizing and enhancing general foundational soil fertility.
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Natural phosphorus source. Adequate phosphorus results in more vigorous early root formation, better flower and seed production, better growth in cold temperatures, and better water use efficiency.
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Contains about 5% potassium in very slow-release form. Can be added to the soil in large amounts without altering the pH. Greatly enhances soil structure and promotes healthier plants.
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A powerful soil restoration amendment! Supports plant health and increases yields by facilitating roots’ uptake of plant nutrients and water. Improves levels of carbon and humus.
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A good source of immediate potassium for depleted soil and of magnesium where calcium is abundant. Alliums like its sulfur and potatoes like its quick boost of potassium.
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Calcium helps strengthen plants’ cell walls, improving crop quality, disease resistance and storage capacity. Can help prevent problems like blossom end rot and bitter pit.
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Copper is necessary for efficient photosynthesis and respiration and affects the sugar content and flavor of produce. Contains 4% chelated copper derived from copper sulfate.
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Iron is essential for chlorophyll development and function, and is also involved in nitrogen fixation by legumes. Contains 5% chelated iron derived from ferrous sulfate.
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Manganese helps plants to synthesize chlorophyll and is used in electron transport during photosynthesis. Contains 1% nitrogen from vegetable protein and 5% chelated manganese.
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Zinc is a component of auxin, an essential growth hormone, and is also necessary for proper root development. Improves cold tolerance. Contains 7% zinc derived from zinc sulfate.
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Magnesium is a building block of chlorophyll and therefore essential to efficient photosynthesis. May boost yields significantly, especially for roses and tomatoes.
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Recommended by soil gurus Phil Callahan and Mark Fulford. Lowest concentration of heavy metals of any phosphate source. Concentrations of available phosphate were regularly over 6% when tested.
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The most common and most frequently used soil conditioner. also called Hi-Cal lime. Recommended for soils with excess magnesium.
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The least expensive liming agent. Use to sweeten soil (raise pH) and provide calcium where excess magnesium is not a problem.
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Agricultural Sulfur. Use to make soil pH more acidic. Often helpful for both lowbush and highbush blueberries, and for potatoes. Lowering the pH of gravel paths will help control weed growth.
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Silicon is linked to improved yields, especially recommended for cannabis, orchard crops, cucurbits, sweet corn, grains and forage crops. Also helps build resistance to powdery mildew.
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Zeolites can improve the productivity of any texture of soil, improving water and mineral retention in sandy soils and improving aeration and minimizing compaction in heavier soils.
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