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Home Browse Organic Growers Supply Index
Aragonite
Aragoniteout-of-stock, Try Hi-Cal Lime as a substitue
8187 (94% CaCO3) Also known as oyster shell. A source of calcium that is very low in magnesium. If you have been using dolomitic limestone to sweeten... read more
Azomite, Coarse
Soil Amendment
Azomite, Coarse
8193 (0-0-0.2, 5% Ca) Named for its A-to-Z of Minerals including Trace Elements; contains over 67 minerals beneficial to plants and animals. A mix of... read more
Azomite, Micronized
Soil Amendment
Azomite, Micronized
8190 (0-0-0.2, 5% Ca) Named for its A-to-Z of Minerals including Trace Elements; contains over 67 minerals beneficial to plants and animals, including... read more
Biochar
Soil Amendment
Biochar
8199 Join the carbon-farming revolution. Biochar is the result of heating organic matter in a low-oxygen environment; instead of releasing the carbon... read more
Boron, Solubor DF
Soil Amendment
Boron, Solubor DF
8202 (20.5% B) Boron is essential for all stages of tree growth and fruit set. May be used in certified organic settings only to correct a documented... read more
BrixBlend Basalt
Soil Amendment
BrixBlend Basalt
8196 A paramagnetic stone powder from the Pioneer Valley of Massachusetts for remineralizing and enhancing the general foundational fertility of the... read more
Essential® Plus 1-0-1
Soil Amendment
Essential® Plus 1-0-1
8185 A high-powered organic blend of kelp concentrate, fish hydrolysate, potassium humate and yucca, designed to stimulate root-hair growth for... read more
Granite Meal
Soil Amendment
Granite Meal
8208 Contains about 5% potassium in very slow-release form. Plants need potassium for sugar and starch production. Granite meal can be added to the... read more
Greensand
Soil Amendment
Greensand
8211 “Greensand has been successfully used for soilbuilding for more than 100 years,” according to Rodale’s Encyclopedia of Organic Gardening. Also... read more
Gypsum, pelletized
Soil Amendment
Gypsum, pelletized
8214 (Calcium Sulfate CaSO4•2H2O, 23% Ca, 17% S) Gypsum is a good source of calcium when the pH is already at a desired level. The sulfur in gypsum... read more
K-Mag Sulfate of Potash Magnesium
Soil Amendment
K-Mag Sulfate of Potash Magnesium
8241 (0-0-22, 11% Mg, 17% S) Langbeinite is a marine deposit of potassium sulfate and magnesium sulfate in soluble form. A good source of immediate... read more
Lime, Dolomitic
Soil Amendment
Lime, Dolomitic
8220 (8.5% MgCO3, 87% CaCO3) 100 lbs has the liming capacity of 116 lbs of pure limestone. Use to sweeten soil and provide calcium where excess... read more
Lime, Hi-Cal
Soil Amendment
Lime, Hi-Cal
8217 (95% CaCO3) The most common and most frequently used soil conditioner, lime is used to raise the pH of acid soils, loosen clays and help bind... read more
Menefee Humates
Soil Amendment
Menefee Humates
8223 Hundreds of millions of years ago the lush rainforests and tropical swamplands of Precambrian New Mexico produced plant matter that, through... read more
Phosphate, Bone Char
Soil Amendment
Phosphate, Bone Char
8226 (0-16-0, 32% P2O5: 16% available) Burned bone meal provides large amounts of readily available phosphorus. May be applied without restrictions to... read more
Phosphate, Calphos Colloidal
Soil Amendment
Phosphate, Calphos Colloidal
8229 (0-3-0, 20% Total P, 3% readily available, 20% Ca, trace minerals) This soft-rock phosphate is an excellent choice for calcium-deficient soils as... read more
Phosphate, Tennessee Brown
Soil Amendment
Phosphate, Tennessee Brown
8232 (0-4-0, 23% P2O5) Neither a colloidal nor a rock phosphate, but the consistency of rich soil. Comes from the washing piles left behind when... read more
Planter’s II Trace Minerals Fertilizer
Soil Amendment
Planter’s II Trace Minerals Fertilizer
8235 (0-0-0.09, 5% Ca, 5% S) Mined in Colorado from the remains of the great inland sea. Crushed and then pelleted with the addition of brewer’s yeast,... read more
Sea-90
Sea-90out-of-stock, clearance SOLD OUT
8238 (sea salt with trace minerals) Sea water contains more life than an equal volume of the most biologically active soil. Extracted from the richest... read more
Soil Amendment
Sulfate of Potash
8244 (0-0-50, K2SO4 17% S) The most economical source of available potassium and a good source of sulfur. Apply at 200–500#/acre or 1#/100 sq ft. read more
Sulfur
Soil Amendment
Sulfur
8247 Used to lower soil pH (make it more acidic). Lowering the pH of gravel paths will help control weed growth. Not fine enough to be spread as a... read more
Soil Amendment
Wollastonite
8248 (48% CaO and 52% SiO2) Soluble-grade and at least 95% pure (may contain trace amounts of iron, manganese and magnesium). Silicon is not... read more
Zeolites
Soil Amendment
Zeolites
8250 These aluminosilicate lattices, derived from volcanic ash, hold up to 55% of their weight in water in the small cavities of their crystal... read more
Zinc, Liquid
Zinc, Liquidclearance
8253 (10% Zn, 5% S) Plants deficient in zinc show delayed maturity and stunted new growth. Zinc doesn’t move easily through plants so they need a... read more

Planting Mixes

Planting Mix
Ancients Rise Mix
8266 Whether they be abandoned heirlooms or wild seedlings, tucked in the woods or growing alongside an old road, apple trees live on for hundreds of... read more
Blueberry Booster
Planting Mix
Blueberry Booster
8256 A blend of granite meal, sulfur, Tennessee brown phosphate, Planter’s II trace minerals and Penobscot Blend Compost & Peat. Brings down the soil... read more
Bulb Planting Mix
Planting Mix
Bulb Planting Mix
8260 (3.1-3.1-2.4) Developed by Fedco Bulbs for slow release of fertilizers. Use 1–2 tsp per bulb mixed into the loosened soil below planting depth.... read more
Fall Fruit Tree Prep Mix
Planting Mix
Fall Fruit Tree Prep Mix
8265 To prepare your land in fall or winter for spring fruit-tree planting, use this mix. Without digging a hole, spread one bag on an area 4–6' in... read more
Planting Mix
Fruition Mix
8263 A balanced fertilizer to keep your bearing fruit trees healthy and productive. Gypsum (to maintain optimum calcium levels to promote disease... read more
Hole-Istic Spring Planting Mix
Planting Mix
Hole-Istic Spring Planting Mix
8262 Recommended for fruit trees at planting time. Formerly known as Fruit Tree Planting Mix. Our own well-balanced blend of soil amendments in a... read more
Vegemighty
Planting Mix
Vegemighty
8261 (3-2-2.5) The fertilizer formerly known as Bulb Planting Mix is still perfectly suitable for this purpose, but we are rebranding it to emphasize... read more