Collection:
Dry Amendments
132 productsDry amendments and minerals to build and recharge living soil.
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Gaia Green 2KG Power Bloom Fertilizer
GAIA GREEN Power Bloom is a high phosphate fertilizer specifically formulated to support prolific flowering and fruiting. As a result, GAIA GREEN Power Bloom is our best fertilizer for root develo...
Real Growers Inc Grow Dots (75 g)
One 75 g serving keeps your plant fed for an entire grow cycle. One application lasts an entire grow cycle. Programmed release NPK for both Veg and Bloom. Nitrogen and Phosphorus for leafy greens a...
RVLS Pumice 0.5cf
Riverview Living Soils Pumice 0.5cf — a premium volcanic mineral amendment that dramatically improves soil drainage, aeration, and root zone structure. Pumice is a lightweight, porous rock that hol...
Hoffman 4# Garden Lime Pelletized
Hoffman® Pelletized Horticultural Lime
- 8lb
Hoffman 4# Garden Lime Pelletized is an 8lb bag of pelletized horticultural lime, perfect for reducing soil acidity in lawns, flower and vegetable garde...
Premium Bokashi Bran Compost Starter
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.TeraGanix Premium Bokashi Bran is a compost starter made from high-qual...
BAS Kashi Gold 2lb
Your mulch isn’t breaking down fast enough, nutrients feel “locked up,” and you want that living-soil pop without overcomplicating things?
Kashi Gold is our answer: an artful, small-batch bokashi d...
Down To Earth Feather Meal - 5 lb
Down To Earth’s Feather Meal 12-0-0 is derived from hydrolyzed, dried and ground poultry feathers. An all-natural source of slow-release nitrogen, it is perfect for corn, tomatoes and fall harvest...
Down To Earth Granular Humic Acid - 5 lb
Down To Earth’s Granular Humic Acids is a highly concentrated source of humic substances that is ideal for use on fields, turf and vegetable gardens. Carefully mined from one of the world’s...
Down To Earth Crab Meal - 5lb
A byproduct of the West Coast crab harvest, Down To Earth’s Crab Meal 4-3-0 is a wonderful source of plant nutrients for vegetable gardens, flower beds and field crops. The coarse texture of DTE Cr...
Down To Earth Organic Langbeinite Fertilizer Mix 0-0-22 5 lb
Down To Earth's Langbeinite supplies three vital plant nutrients and is OMRI listed! The five-pound box of all-natural fertilizer has a 0-0-22 formula and is listed by the Organic Materials Review ...
Down To Earth Organic Alfalfa Meal Fertilizers Mix 2-0-1 4lb
Down To Earth's Alfalfa Meal promotes accelerated growth and plant development. A four-pound box of all-natural fertilizer with a 2-0-1 ratio is listed by the Organic Materials Review Institute (OM...
Down to Earth Organic Blood Meal Fertilizer Mix 12-0-0 4 lb
The high nitrogen found inDown to Earth?s Blood Meal fertilizer promotes rapid vegetative growth. Down to Earth Blood Meal is a 4-pound box of all-natural blood meal with 12-0-0 formulation A readi...
Down To Earth Organic Garden Gypsum Calcium Sulfate 5 lb
Down to Earth's Garden Gypsum loosens clay soil. It is prilled, fast-acting, and easy to apply. Down to Earth Garden Gypsum is a five-pound box of all-natural mineral fertilizer and is listed by th...
BAS Neem and Karajan Mixed 50/50 2.5lb Bag
Boost your garden's health with BAS Neem and Karajan Mixed 50/50 2.5# Bag. This unique blend of neem and karajan provides a 50/50 mix for maximum benefits. Improve soil quality and protect your pla...
Down To Earth Organic Bat Guano Fertilizer Mix 7-3-1 2lb
The undisputed champion of organic fertilizers Bat Guano 7-3-1 is rich in readily available Nitrogen Phosphorus and Micronutrients providing essential plant nutrition for vigorous vegetative grow...
Calcined Clay
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Calcined Clay has become a popular soil amendment for all categories of...
PBH Rice Hulls (organic)
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.PBH Rice Hulls (organic) — par-boiled rice hulls engineered as a soil a...
Royal Gold Worm Castings 1cf
Worm castings are one of a gardener’s best friends. Our source of organic high-quality worm castings can be used for nearly all growing applications from adding to your favorite potting medium wh...
BAS Craft Blend - Nutrient Pack 3lb
BuildASoil Craft Blend started with a big workshop full of the best and cleanest soil amendments available. I quickly became spoiled and would use all of the BuildASoil ingredients together and i...
Down to Earth Azomite - 5 lb
Down To Earth’s AZOMITE is a natural mineral product mined in central Utah. This unique deposit was formed when an ancient volcano erupted and its ash settled into a prehistoric seabed creating a ...
BAS Glacial Rock Dust Gia Green 4lb
Enhance your gardening game with BAS Glacial Rock Dust Gia Green 4lb. Infused with nutrient-rich minerals, this dust promotes healthy soil and plant growth. Boost your plants' vitality and yield wi...
BAS Mustard Seed Meal 2lb Milled
BuildASoil's Favorite Mustard Seed Meal Fertilizer is approved for organic production. Our fertilizer is rich in natural plant nutrients and amino acids. Its formulation is 100% plant-derived allo...
Gaia Green 1.5kg Greensand
GAIA GREEN Greensand is mined from ancient, nutrient-rich deposits of oceanic sediment. Over time, this sediment developed into glauconite, which is highly effective as a slow-release fertilizer us...
Down To Earth Kelp Meal - 4lb
Kelp Meal is pure Ascophyllum nodosum seaweed from the clean, cold waters of the North Atlantic Ocean. It is hand-harvested, carefully dried, and finely milled. Our Kelp Meal provides a rich natura...
Down To Earth All Natural Seabird Guano Fertilizer Mix 0-11-0 5lb
Down to Earth's Seabird Guano 0-11-0 dramatically increases both the amount and size of blooms. Down to Earth Seabird Guano is a five-pound box of all-natural fertilizer with a 0-11-0 formula and i...
Hoffman Horticultural Vermiculite Garden Soil Enhancer, 8 Quart
Hoffman Horticultural Vermiculite 8 Quart is an efficient and popular soil conditioner. Loosens soil and provides aeration. Retains water. Can be used to start seeds, propagate cuttings and store b...
Gaia Green 2kg All Purpose Fertilizer
Gaia Green All Purpose Fertilizer is an ideal blend for gardens and landscapes. Each 2kg bag provides the benefits of multiple fertilizers to promote healthy growth and vibrant blooms. With an NPK ...
33% Off
Sedona Red - Topper
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Soil toppers offer a customizable finishing touch to complement all you...
33% Off
Kona Grey - Topper
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Soil toppers offer a customizable finishing touch to complement all you...
Chunky Perlite
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Chunky Perlite is a large and super lightweight, naturally occurring vo...
33% Off
Saharan Gold - Topper
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Soil toppers offer a customizable finishing touch to complement all you...
33% Off
Original Sol - Topper
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Soil toppers offer a customizable finishing touch to complement all you...
Sol Biotics - Soil Salvation - Worm Castings & Biochar Soil Revitalizer
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Sol Biotics - Soil Salvation Think of this like adding little 5-Star ho...
Pumice
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.DESCRIPTION
Pumice (filtered 3/8" to 1/4" in size) is relatively lightw...
TCM Microbial Inoculant & Soil Amendment
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.TCM Consortium Microbes are the perfect product to create a vibrant and...
Ridgeline Organics Nature’s Acid — Soil Conditioner 5lb
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Ridgeline Organics Nature’s Acid is a premium organic soil conditioner....
Ridgeline Organics Carbon - Max 3-0-3
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Ridgeline Organics Carbon-Max 3-0-3
Give your plants the carbon-rich nu...
Ridgeline Organics Terra Biome™ Mineral Soil Builder 5-2-4 5lb bag
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.TerraBiome Mineral Soil Builder 5-2-4 is a professional-grade organic s...
Ridgeline Organics Lazarus – Soil Rejuvenation & Conditioning Mix 4lb
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.RIDGELINE ORGANICS®
LAZARUS™ SOIL REJUVENATION MIX
Rebuild Soil. Feed B...
Elite Starter Bundle
⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Elite Starter Bundle — premium all-in-one kit that takes your plants to...
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