Additives store

Organic Additives Store Picks

Nutrients, soil additives, media amendments, biology, inoculants, pest control, and disease-control products grouped by use case.

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Organic Additives picks

Use these as starting points, then verify label directions, seller, size, and current details before buying.

Soil Additives & Media

Compost, castings, media structure, pH minerals, aeration, and trace-mineral soil builders.

27 picks

Perlite

Perlite Bliss (8 Qts) - Organic Perlite for Plants Indoor Soil Amendment - Horticultural...

Best for: Perlite use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Perlite additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Finished compost

Organic Compost 1 Gallon

Best for: Finished compost use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Finished compost additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Worm castings

Brut Organic Worm Castings for Plants 12 LB - Natural Nutrients, Fertility Builder, Plant...

Best for: Worm castings use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Worm castings additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Aged manure

R&M Organics Premium Organic Compost 10 lb Bag for Vegetables, Flowers, Plants & Lawns-All...

Best for: Aged manure use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Aged manure additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Aged manure

Brut Cow Compost - Nutrient-Rich Composted Cow Manure Organic Soil Amendment - 100% Pure...

Best for: Aged manure use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Aged manure additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Aged manure

Coast of Maine Organic & Natural Quoddy Blend Lobster & Crab Compost Blend - Premium Soil...

Best for: Aged manure use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Aged manure additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Organic potting mix

All Purpose Organic Potting Mix with Compost & Biochar, for Vegetables, Herbs, Houseplants...

Best for: Organic potting mix use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Organic potting mix additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Elemental sulfur

True Organic Prilled Sulfur - Organic Fertilizer for Better Plant Growth, Flowers,...

Best for: Elemental sulfur use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Elemental sulfur additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Biochar

Mike's Mighty Micros Biochar, Manure Based Biochar, 5lb

Best for: Biochar use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Biochar additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Coconut coir

Happy Trees Coco Coir Loose Coconut Fiber Growing Medium, Potting Mix, Seed-Starting,...

Best for: Coconut coir use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Coconut coir additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Sphagnum peat moss

Peat Moss 2.2 Cu Ft

Best for: Sphagnum peat moss use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Sphagnum peat moss additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Vermiculite

Vermiculite Bliss (8 Qts) - Organic Vermiculite for Gardening - 100% Natural Soil...

Best for: Vermiculite use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Vermiculite additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Rice hulls

Organic Mechanics Pure Rice Hulls, 8 qt (Pack of 2) - Sustainable Alternative to Perlite -...

Best for: Rice hulls use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Rice hulls additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Seed-starting mix

Organic Mechanics Seed Starting Potting Soil Blend, 8 qt - Provides Optimal Seed...

Best for: Seed-starting mix use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Seed-starting mix additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Coarse horticultural sand

GARDENWISE Fine Sand for Plants - Horticultural Sand for Succulents, Cactus, Potting...

Best for: Coarse horticultural sand use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Coarse horticultural sand additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Perlite

Supreme Perlite Coarse Horticultural Perlite for Potting and Gardening, 4 Cu Ft Bag -...

Best for: Perlite use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Perlite additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Basalt rock dust

Down To Earth All Natural Fertilizers Organic Greenstone Metabasalt - Soil Amendment with...

Best for: Basalt rock dust use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Basalt rock dust additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Organic potting mix

Organic Mechanics Container Blend Potting Soil, 2 Cu Ft - All-Purpose, Peat-Free,...

Best for: Organic potting mix use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Organic potting mix additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Azomite / mineral rock dust

Down To Earth All Natural Fertilizers Organic Azomite Powder Trace Minerals - Essential...

Best for: Azomite / mineral rock dust use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Azomite / mineral rock dust additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Horticultural charcoal

Perlite Bliss + Vermiculite Bliss + Char Bliss (8 Qts Bags) - Organic Perlite for Plants -...

Best for: Horticultural charcoal use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Horticultural charcoal additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Gypsum

Down To Earth All Natural Fertilizers Organic Prilled Garden Gypsum - Calcium Sulfate...

Best for: Gypsum use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Gypsum additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Dolomitic lime

Down To Earth All Natural Fertilizers Organic Prilled Dolomite Lime - Calcium Magnesium...

Best for: Dolomitic lime use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Dolomitic lime additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Calcitic lime

Down To Earth All Natural Fertilizers Organic Solution Grade Calcium 96 - Professional...

Best for: Calcitic lime use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Calcitic lime additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Calcitic lime

Down To Earth All Natural Fertilizers Organic Prilled Garden Lime - Calcium Carbonate...

Best for: Calcitic lime use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Calcitic lime additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Azomite / mineral rock dust

Azomite Organic Micronized Trace 0-0.2 Fertilizer Bulk Bag of 67 Essential Minerals OMRI...

Best for: Azomite / mineral rock dust use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Azomite / mineral rock dust additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Basalt rock dust

Gaia Green Glacial Rock Dust, 2 kg

Best for: Basalt rock dust use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Basalt rock dust additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Zeolite

Zeolite Granular 6 lbs, Clinoptilolite 1.4-4 mm, Soil Amendment for Plants, Succulents and...

Best for: Zeolite use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Zeolite additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Nutrients & Fertilizers

Organic meals, fish inputs, kelp, guano, phosphorus, potassium, calcium, and blended plant foods.

31 picks

Neem seed meal / neem cake

Down To Earth All Natural Fertilizers Organic Neem Seed Meal, Plant Food for Vegetable...

Best for: Neem seed meal / neem cake use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Neem seed meal / neem cake additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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All-purpose organic fertilizer blend

Royal Gold Crown Jewels Organic All Purpose 5-5-5 Dry Soluble Fertilizer, 1 lb - Excellent...

Best for: All-purpose organic fertilizer blend use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the All-purpose organic fertilizer blend additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Bloom fertilizer blend

Royal Gold Crown Jewels Organic Bloom 1-4-2 Dry Soluble Fertilizer, 1 lb - for Feeding...

Best for: Bloom fertilizer blend use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Bloom fertilizer blend additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Grow fertilizer blend

Royal Gold Crown Jewels Organic Grow 3-2-2 Dry Soluble Fertilizer, 1 lb - Best for...

Best for: Grow fertilizer blend use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Grow fertilizer blend additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Blood meal

Down To Earth All Natural Fertilizers Organic Blood Meal - High Nitrogen Plant Food for...

Best for: Blood meal use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Blood meal additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Blood meal

True Organic Blood Meal - High-Nitrogen Organic Fertilizer for Rapid Vegetative Growth -...

Best for: Blood meal use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Blood meal additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Kelp meal / liquid seaweed

Down To Earth All Natural Fertilizers Organic Kelp Meal - Plant Food with Seaweed...

Best for: Kelp meal / liquid seaweed use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Kelp meal / liquid seaweed additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Kelp meal / liquid seaweed

GS Plant Foods Liquid Kelp Fertilizer - Suitable for Organic Growing, OMRI Listed Seaweed...

Best for: Kelp meal / liquid seaweed use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Kelp meal / liquid seaweed additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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All-purpose organic fertilizer blend

Burpee Natural Purpose Granular 4-Lb Organic Food for Growing Strong Plants | Good for...

Best for: All-purpose organic fertilizer blend use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the All-purpose organic fertilizer blend additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Vegetable and herb fertilizer blend

Down To Earth All Natural Fertilizers Organic All Purpose Tomato & Vegetable Mix - Plant...

Best for: Vegetable and herb fertilizer blend use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Vegetable and herb fertilizer blend additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Feather meal

Down To Earth All Natural Fertilizers Organic Feather Meal - Slow Release Nitrogen Plant...

Best for: Feather meal use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Feather meal additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Fish emulsion

FOOP Garden - Organic Liquid Plant Food Made from Fish Manure (with Fresh Minty Scent) |...

Best for: Fish emulsion use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Fish emulsion additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Fish emulsion

GS Plant Foods Liquid Fish & Kelp Fertilizer - (1 Gallon) Organic Material Review...

Best for: Fish emulsion use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Fish emulsion additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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All-purpose organic fertilizer blend

True Organic All Purpose Liquid Plant Food - Liquid Fertilizer 16oz - CDFA, OMRI Listed...

Best for: All-purpose organic fertilizer blend use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the All-purpose organic fertilizer blend additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Fish hydrolysate

OMRI Listed Organic Concentrated Fish Poop - Liquid Fertilizer & Indoor Plant Food for...

Best for: Fish hydrolysate use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Fish hydrolysate additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Fish hydrolysate

Drammatic Organic Original Fertilizer 2-4-1, Hydrolyzed Liquid Fish Fertilizer for...

Best for: Fish hydrolysate use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Fish hydrolysate additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Fish meal

Down To Earth All Natural Fertilizers Organic Bio-Fish - Plant Food for Corn, Broccoli,...

Best for: Fish meal use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Fish meal additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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All-purpose organic fertilizer blend

True Organic All Purpose Plant Food - Organic Fertilizer for Fruits, Vegetables, Flowers,...

Best for: All-purpose organic fertilizer blend use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the All-purpose organic fertilizer blend additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Fish bone meal

Down To Earth All Natural Fertilizers Organic Fish Bone Meal - High Phosphorus Plant Food...

Best for: Fish bone meal use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Fish bone meal additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Crab meal / shrimp meal

Down To Earth All Natural Fertilizers Organic Crab Meal - Plant Food for Vegetable Gardens...

Best for: Crab meal / shrimp meal use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Crab meal / shrimp meal additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Rock phosphate

Down To Earth All Natural Fertilizers Organic Rock Phosphate - Calcium Phosphate Plant...

Best for: Rock phosphate use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Rock phosphate additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Vegetable and herb fertilizer blend

True Organic Herb & Leafy Greens Food - Organic Fertilizer for Abundant Herbs and Greens -...

Best for: Vegetable and herb fertilizer blend use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Vegetable and herb fertilizer blend additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Seabird guano

Down To Earth All Natural Fertilizers Organic Seabird Guano - High Phosphorus Plant Food...

Best for: Seabird guano use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Seabird guano additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Seabird guano

True Organic Seabird Guano - Organic Fertilizer for Abundant Fruits, Flowers, Vegetables,...

Best for: Seabird guano use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Seabird guano additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Bat guano

Down To Earth All Natural Fertilizers Organic Bat Guano - High Nitrogen Plant Food for...

Best for: Bat guano use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Bat guano additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Bat guano

Down To Earth All Natural Fertilizers Organic Bat Guano - High Nitrogen Plant Food for...

Best for: Bat guano use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Bat guano additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Langbeinite / sulfate of potash-magnesia

Down To Earth All Natural Fertilizers Organic Langbeinite, Potassium Magnesium Sulfate...

Best for: Langbeinite / sulfate of potash-magnesia use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Langbeinite / sulfate of potash-magnesia additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Kelp meal / liquid seaweed

Coast of Maine Stonington Lobster & Kelp Plant Food, Organic Granular Fertilizer

Best for: Kelp meal / liquid seaweed use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Kelp meal / liquid seaweed additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Crab meal / shrimp meal

Coast of Maine Lobster Meal - Organic Plant Food, Soil Amendment, Greening and Leafing,...

Best for: Crab meal / shrimp meal use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Crab meal / shrimp meal additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Fish bone meal

Coast of Maine, 3lb (Pack of 2) Fish Bone Meal Organic Plant Food and Calcium, OMRI Listed...

Best for: Fish bone meal use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Fish bone meal additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Potassium sulfate

Down To Earth All Natural Fertilizers Organic Solution Grade Potassium Sulfate -...

Best for: Potassium sulfate use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Potassium sulfate additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Biology & Inoculants

Humic and fulvic acids, mycorrhizae, beneficial microbes, inoculants, and microbe foods.

9 picks

Humic acid / fulvic acid

Farmer's Secret Soil Revitalizer (8oz) - Organic (OMRI Listed) Beneficial Dirt Booster -...

Best for: Humic acid / fulvic acid use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Humic acid / fulvic acid additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Humic acid / fulvic acid

Mr. Fulvic Organic Fulvic Acid for Plants | Liquid Humic Soil Amendment & Nutrient...

Best for: Humic acid / fulvic acid use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Humic acid / fulvic acid additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Humic acid / fulvic acid

Humic Acid Organic Lawn Fertilizer - Fulvic Humic Mineral Blend for Trees, Shrubs,...

Best for: Humic acid / fulvic acid use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Humic acid / fulvic acid additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Legume inoculant

Exceed - Soybeans Peat Legume Powder Inoculant for Increased Nitrogen for Plant Growth,...

Best for: Legume inoculant use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Legume inoculant additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Mycorrhizal inoculant

Xtreme Gardening Mykos Mycorrhizae for Plants- Granular Mycorrhizal Fungi Root Inoculant,...

Best for: Mycorrhizal inoculant use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Mycorrhizal inoculant additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Beneficial bacteria inoculant

Mycorrhizal Fungi OMRI Organic Root Enhancer for Plant Success, Super Potent 20 Strain...

Best for: Beneficial bacteria inoculant use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Beneficial bacteria inoculant additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Beneficial bacteria inoculant

Mycorrhizal fungi + beneficial microbial blend

Best for: Beneficial bacteria inoculant use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Beneficial bacteria inoculant additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Unsulfured molasses

Plantation Organic Blackstrap Molasses

Best for: Unsulfured molasses use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Unsulfured molasses additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Unsulfured molasses

Wholesome Organic Blackstrap Molasses, 16 oz, 1-Pack

Best for: Unsulfured molasses use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Unsulfured molasses additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Pest & Disease Control

Organic-first sprays, oils, soaps, slug bait, mildew tools, spinosad, and dry pest barriers.

10 picks

Plant oil 3-in-1 spray

Earth's Ally 3-in-1 plant spray

Best for: Plant oil 3-in-1 spray use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Plant oil 3-in-1 spray additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Dormant oil

Summit year-round spray oil

Best for: Dormant oil use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Dormant oil additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Spinosad

Fertilome spinosad insecticide

Best for: Spinosad use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Spinosad additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Horticultural oil

Summit year-round spray oil

Best for: Horticultural oil use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Horticultural oil additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Insecticidal soap

Safer 5118-6 Insect Killing Soap Concentrate - Insecticidal Soap for Plants - Kills...

Best for: Insecticidal soap use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Insecticidal soap additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Diatomaceous earth

HARRIS Diatomaceous Earth Food Grade, Half Pound with Easy Application Puffer Tip

Best for: Diatomaceous earth use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Diatomaceous earth additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Sulfur fungicide

Safer Garden 3-in-1 Ready-to-Use Fungicide, Miticide, and Insecticide Spray, 24 oz Spray -...

Best for: Sulfur fungicide use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Sulfur fungicide additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Botanical disease control spray

Earth's Ally Disease Control Concentrate for Plants Concentrate 32 oz | Fungicide...

Best for: Botanical disease control spray use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Botanical disease control spray additive category.

Before buying: Confirm label directions, ingredients, package size, seller, shipping, price, and current Amazon details before buying.

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Plant oil 3-in-1 spray

Grower's Ally Crop Defender 3 - Ready-to-Use Miticide, Insecticide, Fungicide Control for...

Best for: Plant oil 3-in-1 spray use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Plant oil 3-in-1 spray additive category.

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Iron phosphate slug bait

Monterey Sluggo Snail & Slug Killer Bundled with Measuring Spoon - OMRI Listed for Organic...

Best for: Iron phosphate slug bait use cases from the organic additives guide.

Why it fits: Matched from the supplied Amazon affiliate link to the Iron phosphate slug bait additive category.

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