Collection: Soil Biology & Microbial Activity Inputs
Compare products by nutrient analysis, formulation, application method and label directions.
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Sold outSuper Greensand Micronized (44 lb)
Regular price $46.99Sale $46.99Unit price per -
Sold outPeaceful Valley Organic PrimeStart Booster Blend 2.3-5.0-2.6 (30 lb)
Regular price $51.99Sale $51.99Unit price per -
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Sold outIsland Phosphate Hi P 0-11-0 (5 lb Box)
Regular price $24.99Sale $24.99Unit price per -
Sold outVegan Mix Fertilizer 3-2-2 (25 lb Bag)
Regular price $49.99Sale $49.99Unit price per -
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Sold outFish Emulsion with Kelp 4-1-1 (Quart)
Regular price $15.99Sale $15.99Unit price per -
Sold outTrue Organic Liquid All-Purpose Plant Food 16 oz
Regular price $8.99Sale $8.99Unit price per -
Sold outHill & Valley Fertilizer Mix Plus N 2.0-4.0-4.0 (40 lb)
Regular price $51.99Sale $51.99Unit price per -
Sold outEspoma Organic Tomato-Tone (4 lb)
Regular price $12.99Sale $12.99Unit price per -
Sold outHill & Valley Fertilizer Mix 0.5-4.0-4.0 (40 lb)
Regular price $45.99Sale $45.99Unit price per -
Sold outGreensand (25 lb bag)
Regular price $40.99Sale $40.99Unit price per$0.00Regular priceQualifies for free shippingSold out -
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Sold outPeaceful Valley Organics Premium Earthworm Castings (27 cu ft tote)
Regular price $430.99Sale $430.99Unit price per -
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Sold outTrue Organic - Root Enhancer 1lb
Regular price $20.99Sale $20.99Unit price per -
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Sold outEspoma Organic Greenrock 7lbs
Regular price $14.99Sale $14.99Unit price per -
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Sold outEspoma Organic Lawn Food - Summer Revitalizer 8-0-0 (30 lb)
Regular price $36.99Sale $36.99Unit price per -
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Sold outEspoma Organic Lawn Food - Fall Winterizer 8-0-5 (30 lb)
Regular price $59.99Sale $59.99Unit price per
Collection: Fertilizers That Boost Microbial Activity
Inputs for Soil Biology and Microbial Activity
Shop compost-based materials, microbial inoculants, humic products and fertilizers commonly used in soil-building programs. These products have different functions and should not be treated as interchangeable.
How to Choose
Identify whether you need an inoculant, an organic-matter source or plant nutrients. Review organism claims, storage requirements, analysis and label directions for the specific product.
Compare soil-life products, organic-matter amendments and humic products.