You are viewing all Organic Growers Supply products related to “Compost.”

Amendments and Fertilizers


Poultry Manure Compost
8301 (5-4-3 with 9% Ca) From Kreher Enterprises. Composted, pasteurized and processed poultry litter from New York farms provides a good balance of... read more


Custom Mixing
8193 If you’re tired of ineffectively mixing fertilizers or potting soil ingredients together in a wheelbarrow or tractor bucket, let us do the dirty... read more

Compost and Potting Soil

Planting Mixes

Planting Mix
8369 Dan K., a faithful OGS customer with a flair for experimentation, developed this mix and was kind enough to share his formula with us. He says,... read more
Planting Mix
Coast of Maine Penobscot Blend™ Compost & Peat
8359 75% composted salmon, mussels and wild blueberries with 25% sphagnum peat. Perfect for mulching trees and shrubs, or topdressing lawns. Adds... read more
Planting Mix
Coast of Maine Quoddy Blend™ Organic Lobster Compost
8356 Extra Rich Soil Conditioner for Flower & Vegetable Gardens. Blend of composted lobster, crab, peat, bark and cow manure. Rich in micronutrients.... read more
Planting Mix
Coir Blocks
8380 This premium washed low-EC coconut coir is a biodegradable and environmentally sound substitute for peat moss. Compressed blocks of coconut fibers... read more
Planting Mix
GreenTree Ag Blend™
8365 All-purpose blend, light on the peat, with coconut coir, worm castings and a well-balanced organic nutrient package. pH 6.5 and EC 1.5 mS/cm.... read more
Planting Mix
GreenTree BioAll™
8368 A premium high-test potting soil. Formerly branded as Ithaca Blend (some bags still labeled that way). Coir, sphagnum peat, and worm castings form... read more
Planting Mix
GreenTree Growers’ Blend™
8363 A lighter blend of coir, sphagnum peat and organic nutrients. Recommended for small seeds, early growth and any plants that prefer high air... read more
GreenTree NoFloat™clearance
8386 Coir goes tech. GreenTree combines different size grades of washed and buffered coir fibers to an exacting formula that results in a high-porosity... read more
Planting Mix
Living Acres NP Germination Blend™
8377 A light-textured potting soil with extra perlite, screened to ½". Recommended for the smallest flower and herb seeds. Seedlings more than three... read more
Planting Mix
8389 Volcanic glass that has been heated until it “pops” like corn, resulting in a lightweight, porous and stable material. Widely used in potting... read more
Rainbow Valley Compostout-of-stock
8362 This top-quality compost, made in Sidney, Maine, from organic cow and poultry manure, comes highly recommended by farm advisor Mark Fulford. The... read more
Planting Mix
Raw Biochar
8348 Join the carbon-farming revolution. Biochar is the product of heating organic matter in a low-oxygen environment: instead of releasing the carbon... read more
Planting Mix
Rice Hulls
8392 A great alternative to perlite in your growing medium—carbonaceous, renewable and less dusty to mix. May be included at up to a third of your... read more
Planting Mix
Superworm Frass
8351 (2-2-2), 16% Chitin. As if “darkling beetle” didn’t already sound like the nightmare invention of a fantasy novelist, the manufacturers of this... read more
Planting Mix
Vermont Compost Fort Light™ Potting Soil
8374 Blond sphagnum peat, compost, coconut coir, perlite, and a blend of organic and mineral amendments. Recommended for cell-tray seedlings. Warms... read more
Planting Mix
Vermont Compost Fort Vee™ Potting Soil
8371 Blond sphagnum peat, compost, vermiculite and coir with a blend of organic and mineral amendments. Widely used by growers who make soil blocks.... read more
Planting Mix
Vermont Compost Plus®
8353 Blended from composted manure and plant materials, blond sphagnum peat moss, granite meal, animal and/or protein meal, black rock phosphate, kelp... read more
Planting Mix
Worm Castings
8350 (0.5-0.5-0.3 avg. and trace minerals) Research at Ohio State University indicates that adding 10–20% worm castings by volume to potting mixes... read more



Compost Teas for the Organic Grower
9530 by Eric Fisher, 256 pages, 7x8, softcover. Finally! A guidebook on compost teas that goes well beyond the bubbler. Drawing on a variety of... read more