Amendments And Fertilizers - Supplies

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Biochar helps your soil sequester more carbon and emit less nitrous oxide. Also provides a dream home for beneficial bacteria and fungi, while preventing essential nutrients from leaching away. read more

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Coast of Maine Quoddy Blend™ Compost with Lobster & Crab

discontinued

Soil conditioner for flower & vegetable gardens. Blend of compost, peat, aged bark, lobster and crab meala. Rich in micronutrients. Ideal for flower and vegetable beds. read more

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Rainbow Valley Compost

This top-quality compost has strong nitrogen levels and sky-high organic matter. Use as a top-dressing, mix into garden soil, or apply around the trees. Made in Sidney, Maine. read more

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Vermont Compost Plus®

A great boost for transplants, potted plants and garden soils. Improves soil structure, provides a generous dose of slowly released nutrients and enhances microbial activity. read more

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3G Greener Garlic Grower

Fertilizer Blend

NPK: 3-3.5-3.5 avg. plus sulfur. With 3G Greener Garlic Grower, you can expect better spring emergence, more vigorous plants, bigger bulbs and richer flavor. Blended in-house. read more

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5G Grow Great Garlic Greener, Guaranteed Kit

Fertilizer Blend

Kit includes user-friendly instructions and supplies for up to 100 cloves (about 2 lb) of seed garlic! read more

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Ancients Rise Mix

Fertilizer Blend

Formulated to build humus, enhance CEC, and condition the soil in which the ancient roots reside, whether they be abandoned heirlooms or wild seedlings. Can be applied in fall or spring. read more

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Blueberry Booster

Fertilizer Blend

A blend of granite meal, sulfur, Tennessee brown rock phosphate, compost and Azomite. Reduces soil pH and provides the nutrients necessary for healthy blueberry plants and good fruit. read more

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new!

Bulb Builder Mix

Fertilizer Blend

(NPK: 4-6-4, plus 9.6% Ca, 10.4% SiO2, 1.4% S, 1.7% Humic Acids) Have you ever used a fertilizer that built you up, only to let you down? We

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CannaDiesel Mix

Fertilizer Blend

This fertilizer and amendment mix includes all the goods contained in our well-loved CannaLot MegaSoil, minus the compost and potting soil. Great for plants grown in the ground, and cheaper to ship! read more

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Fall Fruit Tree Prep Mix

Fertilizer Blend

For a deluxe tree planting spot, choose this mix! Contains a broad spectrum of macro and micronutrients and soil conditioners that fruit trees thrive on. Follow our directions for use in the fall. read more

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Fruition Mix

Fertilizer Blend

A balanced fertilizer to keep your bearing fruit trees healthy and productive. If your tree put on 4" or less of terminal growth last year, our Fruition Mix will put new spring in its step! read more

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Hole-Istic Spring Planting Mix

Fertilizer Blend

Recommended for fruit trees at planting time. Our own well-balanced blend of Tennessee brown phosphate, alfalfa meal, Azomite, and K-Mag in a humus-rich base of worm castings. read more

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Mighty Spears Asparagus Mix

Fertilizer Blend

NPK: 2.3-6.6-7. Our exclusive mix will help you grow mighty spears of asparagus. Formulated to meet Penn State Extension’s recommendations for the annual fertilization of asparagus beds. read more

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NutriVeg®

Fertilizer Blend

NPK: 5-4-4. 5% Ca. A blend of fertilizers and minerals to provide balanced nutrition for veggies, trees and shrubs. Made in Maine. read more

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new!

RhiZoom Ginger & Turmeric Mix

Fertilizer Blend

(NPK: 6-2.5-10.4, with 7.7% Calcium, 3.5% Sulfur, and 8.3% Silicon Dioxide) Growing ginger and turmeric in cold climates is a heroic task, but

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Sleepytime Soil Builder

Fertilizer Blend

Spread this blend of granite, zeolites, gypsum, micronutrients and humates in that fall, and it will improve soil structure, remineralize, and enhance nutrient availability for the next spring! read more

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Tomato Sauce

Fertilizer Blend

NPK: 3-4-6.1 By popular demand! A Fedco Blend formulated to meet the needs of field-grown (outdoor) fruiting Solanaceous crops: tomatoes, peppers, eggplants and tomatillos. read more

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True Love Rose & Ornamental Mix

Fertilizer Blend

NPK: 2.5-6-3. Show your flowers you appreciate them by treating them to dinner now and then. This mix is formulated to feed both soil and plant to encourage healthy foliage and lush, colorful blooms. read more

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Turbo-Tuber

Fertilizer Blend

NPK: 7-2-9 avg. 2% Ca and 3.5% S. High-test organic fertilizer, formulated to meet the nutrient requirements of potatoes. Blended in-house. read more

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Vegemighty

Fertilizer Blend

NPK: 3.4-2.2-3.5. An excellent all-purpose fertilizer for those who prefer to avoid animal products. Great for flower bulbs because it won’t attract critters. read more

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Fish Hydrolysate (Drammatic "O" Liquid Fish Plant Food)

Liquid Fertilizers

NPK: 2-5-0.2. Fish heads, bones, skin and guts finely ground and then enzymatically digested. Can be used as foliar feed. Made from wild fish scraps from the fishing industry along the Great Lakes. read more

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Fish Hydrolysate with Kelp (Drammatic “K” Liquid Fish Plant Food)

Liquid Fertilizers

NPK: 2-5-0.2. All the NPK of fish, along with the micronutrients and growth hormones of kelp. Encourages vigorous rooting. Improves plant vigor and stress resistance, increases storage life of produce read more

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Fulvic Acid Liquid

Liquid Fertilizers

Fulvic acid is a powerful antioxidant and chelator: one molecule can transport 60 or more minerals into plant cells for a more efficient and effective fertilization program read more

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High Brix Molasses -

Liquid Fertilizers

Molasses is a source of important nutrients, including manganese, magnesium, copper, potassium and calcium. Food grade, shelf stable. Plants and beneficial microbes have a sweet tooth, too! read more

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Humic Acids Soluble Powder

Liquid Fertilizers

Humic acids perform many complex functions. They neutralize soil pH, prevent leaching of trace minerals, stimulate growth of foliage and roots significantly, and much, much, more! read more

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Kelp Liquid Concentrate

Liquid Fertilizers

New formula is twice as concentrated as the liquid kelp we carried for years, so you'll need only half as much! read more

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Kelp-It Soluble Powder Dehydrated Seaweed Extract

Liquid Fertilizers

NPK: 0-0-18. Highly concentrated extract makes an excellent foliar spray containing growth hormones, trace minerals, enzymes and carbohydrates. read more

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Micronutrients Liquid Calcium

Liquid Fertilizers

currently on backorder, ETA 1/15

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. read more

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Micronutrients Liquid Copper

Liquid Fertilizers

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. read more

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Micronutrients Liquid Iron

Liquid Fertilizers

low stock

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. read more

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Micronutrients Liquid Manganese

Liquid Fertilizers

Manganese helps plants to synthesize chlorophyll and is used in electron transport during photosynthesis. Contains 1% nitrogen from vegetable protein and 5% chelated manganese. read more

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Micronutrients Liquid Zinc

Liquid Fertilizers

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. read more

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Monster Plant Mojo (Drammatic “ONE” 4-4-0.5 Plant Food)

Liquid Fertilizers

NPK: 4-4-0.5. Contains fish hydrolysate, kelp extract, humic and fulvic acids, and a dash of chilean nitrate to boost the nitrogen levels for rapid vegetative growth. read more

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20 Mule Team Borax Solubor® DF

Mineral

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. read more

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AZOMITE®, Granulated Natural Trace Minerals

Contains over 67 minerals beneficial to plants and animals, including rare earth elements. read more

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BrixBlend Basalt

Mineral

A paramagnetic stone powder for remineralizing and enhancing general foundational soil fertility. read more

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Granite Meal

Mineral

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. read more

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Hum-Amend Max

Mineral

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. read more

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Kelp Meal -

Mineral

For soil: excellent source of naturally chelated elements, enzymes, and amino acids. For livestock: excellent source of iodine, vitamin A and dozens of other vitamins and trace minerals. read more

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Monterey Epsom Salts

Mineral

low stock

Magnesium is a building block of chlorophyll and therefore essential to efficient photosynthesis. May boost yields significantly, especially for roses and tomatoes. read more

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ZeoMax Garden Aid

Mineral

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. read more

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Aragonite

pH and Calcium

From oyster shells, not pulverized rock. Aragonite is even lower than calcitic lime in magnesium, so it's the ideal choice for soils with excessive magnesium. read more

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Gypsum, pelletized

pH and Calcium

A good source of calcium when the soil pH is already at a desired level. read more

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Pro Pelleted Calcitic Limestone

pH and Calcium

The most common and most frequently used soil conditioner. also called Hi-Cal lime. Recommended for soils with excess magnesium. read more

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Pro Pelleted Limestone, Dolomitic Limestone Pro-Select Prill

pH and Calcium

The least expensive liming agent. Use to sweeten soil (raise pH) and provide calcium where excess magnesium is not a problem. read more

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Tiger Organic 90CR Sulfur

pH and Calcium

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. read more

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Wollastonite

pH and Calcium

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. read more

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Ahimsa Organics® Karanja Cake

Single Ingredient Nitrogen

NPK: 4.6-0.9-1.3 avg. A favorite of earthworms and other beneficial soil organisms, and inhibits the growth of some notorious pathogenic soil microbes. Beloved by hemp and cannabis growers. read more

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Ahimsa Organics® Neem Cake

Single Ingredient Nitrogen

NPK: 6-1-3 avg. Rich in the basic nutrients, nitrogen, phosphorus and potassium, it makes an excellent fertilizer and soil additive. Can help suppress fusarium infestations. read more

Organic Growers Supply: Amendments And Fertilizers