You are viewing all Organic Growers Supply products related to “Compost.”
Amendments and Fertilizers
Amendments and Fertilizers
Tired of ineffectively mixing fertilizers or potting soil ingredients together in a wheelbarrow or tractor bucket? Let us do the dirty work for you! Buy ingredients from us or bring your own. read more
Amendments and Fertilizers
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
Soil Testing & Organic Fertilizer Recommendation Service
out-of-stock, Unavailable for Spring 2024
Don’t guess—test! You’ll learn your soil pH, organic matter percentage, levels of common minerals and nutrients, plus we’ll offer customized recommendations to correct or improve your soil read more
Amendments and Fertilizers
NPK: 2-2-2. 16% Chitin. Nourishes chitin-feeding bacteria and fungi, which in turn devour gnat eggs and root-feeding nematodes. Also fortifies plants’ cell walls, and fosters healthy blooms. read more
Amendments and Fertilizers
NPK: 0.5-0.5-0.3 apx, plus trace minerals. Worm castings limit plant disease and have beneficial effects including enhanced mycorrhizal activity and the suppression of parasitic nematodes. read more
Animal-based
Animal-based
NPK: 13-0-0. One of the fastest release times of all organic nitrogen sources. Highly recommended for corn. The smell (understandably) freaks out deer. Use as a side-dressing or till into soil. read more
Animal-based
NPK: 6.9-11.9-0.8 avg. Excellent source of nitrogen and phosphorus. Use as a sidedressing or mix into compost to provide added nitrogen and a bacterial boost. A byproduct of wild-caught fish. read more
Animal-based
NPK: 5-4-3 (with 9% Ca). Composted and processed poultry litter provides a good balance of major plant nutrients and other essential elements. Pasteurized to neutralize weed seeds and pathogens. read more
Minerals
Mineral
The most common and most frequently used soil conditioner. also called Hi-Cal lime. Recommended for soils with excess magnesium. read more
Mineral
The least expensive liming agent. Use to sweeten soil (raise pH) and provide calcium where excess magnesium is not a problem. read more
Plant-based
Plant-based
NPK: 2.5-0.4-3.3 avg. Gives plants a noticeable boost and feeds soil organisms. Excellent vegan alternative to blood meal as a nitrogen source. Hands-down the best-smelling fertilizer out there. read more
Plant-based
NPK: 7-1.5-1 avg. Effective and economical nitrogen fertilizer for Northeast soils. High levels of nitrogen and potassium are released as soybean meal breaks down, providing fertility over time. read more
Planting Mixes
Planting Mix
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
Planting Mix
Just as 5G ushered in a new telecom era, our 5G kit will revolutionize your garden’s garlic game. You’ll be effortlessly broadcasting and... read more
Planting Mix
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
Planting Mix
Spread this 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
Planting Mix
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
Compost and Potting Soil
Compost and Potting Soil
A premium high-test potting soil recommended for indoor growers, container gardening, soil-blocking, or slow-growing seedlings that will be in the greenhouse for six weeks or more. Made in New York. read more
Compost and Potting Soil
Compost and Potting Soil
75% composted salmon, oyster-shell fragments, and wild blueberries with 25% sphagnum peat. Perfect for mulching trees and shrubs, or topdressing lawns. Adds nutrients and structure to planting mixes. read more
Compost and Potting Soil
Soil conditioner for flower & vegetable gardens. Blend of compost, peat, aged bark and crab meal. Rich in micronutrients. Ideal for flower and vegetable beds. read more
Compost and Potting Soil
An environmentally sound substitute for peat moss. Use in potting mixes or to add organic matter to your soil. Improves aeration, nutrient retention, and moisture-retention capacity. read more
All-purpose blend, light on the peat, with coconut coir, worm castings and a well-balanced organic nutrient package. Suitable for seed starting, transplants and microgreens; Made in New York. read more
Compost and Potting Soil
A light-textured potting soil with extra perlite, screened to ½". Recommended for the smallest flower and herb seeds. Transplant to a more nutrient-rich blend to grow out. Made in Maine. read more
Compost and Potting Soil
Peat-free is the way to be! This professionally calibrated mix will give any peat-based potting mix a run for its money. In a head-to-head trial,... read more
Compost and Potting Soil
Compost and Potting Soil
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
Compost and Potting Soil
A great alternative to perlite in your growing medium—carbonaceous, renewable and less dusty to mix. Also used as a mulch for container plants. Parboiled to eliminate viable weed seeds. read more
Compost and Potting Soil
Recommended for cell-tray seedlings, but not for soil-blocking. Warms more quickly and drains better than Fort Vee, but might need additional fertilizing prior to transplanting. read more
Compost and Potting Soil
Widely used by growers who make soil blocks. Has good water retention and a long-lasting nutrient supply from the high proportion of compost in the mix. Highly recommended for slow-growing seedlings. read more
Compost and Potting Soil
Sick and tired of poor yields from your container-grown cannabis or hemp? Ahoy, matey, this flowering and fruiting mix is for you! Also great for tomatoes and other vegetables, flowers or houseplants. read more
Compost and Potting Soil
Great for filling their raised beds or large containers Coarser than potting mixes, and formulated as a complete soil for organic cultivation of woody plants, shrubs, herbs, vegetables and flowers. read more
Compost and Potting Soil
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
For the times when those little bags just won't cut it, Vermont Compost blends are available in 2 cubic yard totes, perfect for larger gardens and growing operations. Choose from a variety of blends. read more
Seed Starting
Seed Starting
Interested in growing your own seedlings but don’t know where to start? This kit is for you! Contains top-notch potting soil, a range of cell... read more