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Rock phosphate has 18% calcium and is essential for building soil phosphate levels for long term plant productivity and for preventing calcium deficient soils.


No risk of over application, plants love kelp. Formulated and made in the usa: designed by botanists and plant chemists. Fully organic seaweed and kelp: a seven species blend of Ascophyllum Nodosum, Arthrospira Platensis, Chlorella Vulgaris, Laminaria Saccharina, Palmaria Palmata, Ecklonia Maxima, and Chondrus Crispus.
Get all the benefits of natural kelp enzymes and hormones without the non-nutritious fibrous pulp that gives other kelps their thick, brackish appearance. Extracted to protect natural enzymes: clean kelp’s unique processing techniques give the cleanest possible kelp extract. For both plants and lawns: add Clean Kelp to all of your houseplants, vegetable garden, and your lawn for healthy green plants.





Phosul is an organic, plant-available phosphate plus added elemental sulphur fertilizer. More sustainable and environmentally safe method to liberate rock phosphate for agricultural production.
1. Down To Earth All Natural Fertilizers
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5 lb, Down to Earth Organic Rock Phosphate Fertilizer 0-3-0
#adDown To Earth All Natural Fertilizers #ad - Should be applied to soils prior to planting and can be mixed with compost or manures for additional soil building benefits. Down to earth rock phosphate is a five pound box of all natural fertilizer with 0-3-0 formula and is listed by the Organic Materials Review Institute OMRI for use in organic production.Rock phosphate has 18% calcium and is essential for building soil phosphate levels for long term plant productivity and for preventing calcium deficient soils.
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Soft rock phosphate is an untreated, mined material with a natural source of Phosphorus and Calcium that is available more quickly than hard rock phosphate. This premium powder grade is an excellent nutrient resource for all types of flowering plants including bulbs, shrubs, fruits, trees and vegetables.Brand | Down To Earth All Natural Fertilizers #ad |
Manufacturer | Central Garden #ad |
Height | 1 Inches |
Length | 1 Inches |
Weight | 4.7 Pounds |
Width | 1 Inches |
Part Number | 100526004 |
Model | 100526004 |
More information #ad
2. Espoma
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28-Pound, Espoma RP28 Rock Phosphate
#adEspoma #ad - All natural and pelletized for easy application. Organic rock phosphate provides phosphorous for all flowering plants. Carrying a formulation of 0-3-0 Comes in 28-pound bag. Mined from phosphorous rich natural deposits.More information #ad
Brand | Espoma #ad |
Manufacturer | Espoma #ad |
Height | 2 Inches |
Length | 26 Inches |
Weight | 28 Pounds |
Width | 12 Inches |
Part Number | RP28 |
Model | RP28 |
More information #ad
3. Bloom City
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Quart 32 oz Concentrated Makes 180 Gallons, Organic Liquid Seaweed and Kelp Fertilizer Supplement by Bloom City
#adBloom City #ad - Simple and safe to use for all plants: add to every watering, it’s that easy. Clean kelp aids in every stage of growth for root and stem health. Bloom city chooses only the highest quality ingredient sources and manufacturing methods to create the world’s best craft growing nutrient systems.No risk of over application, plants love kelp. Formulated and made in the usa: designed by botanists and plant chemists. Fully organic seaweed and kelp: a seven species blend of Ascophyllum Nodosum, Arthrospira Platensis, Chlorella Vulgaris, Laminaria Saccharina, Palmaria Palmata, Ecklonia Maxima, and Chondrus Crispus.
More information #ad
You can see the difference. Get all the benefits of natural kelp enzymes and hormones without the non-nutritious fibrous pulp that gives other kelps their thick, brackish appearance. Extracted to protect natural enzymes: clean kelp’s unique processing techniques give the cleanest possible kelp extract. For both plants and lawns: add Clean Kelp to all of your houseplants, vegetable garden, and your lawn for healthy green plants.
Brand | Bloom City #ad |
Manufacturer | Bloom City #ad |
Weight | 2 Pounds |
Part Number | kelp-32-fba-upc-0422 |
More information #ad
4. Soil Mender
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Soil Mender SM-SRP-5 Rock Phosphate ~ 5 lbs
#adSoil Mender #ad - We try very hard to present accurate product information and images, color or characteristic is especially important, but product changes occur constantly. If a particular product feature, please contact your seller to verify that information before placing your order.More information #ad
Promotes plant photosynthesis and high yields. Current jan/2013 analysis: total nitrogen n - 00% available phosphate P2O5 - 3. 0% soluble potash K2O - 00%. Derived from - Rock Phosphate. Helps deter weed growth and is an all natural source of phosphorus for root development & fruit & flower production.Brand | Soil Mender #ad |
Manufacturer | Soil Mender #ad |
Part Number | SMRP05 |
Model | SMRP05 |
More information #ad
5. Easy Peasy Plants
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Triple Super Phosphate 0-46-0 Easy Peasy Plants 99% Pure 5lb
#adEasy Peasy Plants #ad - Helps root growth, fruit and flower formation and overall health of your plants. More economical than any other phosphate. Highest quality premium phosphorus fertilizer used to give your plants health a boost.More information #ad
Indoor/outdoor plants will benefit no matter if it is your flowers, garden or lawn! Easy to use bag is resealable. Each 5 lb bag pours with ease and can be sealed and stored for future use.Brand | Easy Peasy Plants #ad |
Manufacturer | Easy Peasy Plants Inc. #ad |
Part Number | PD-32289 |
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6. Old Cobblers Farm
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Old Cobblers Farm Rock Phosphate Fertilizer Organic 0-3-0 Fertilizer 5lb
#adOld Cobblers Farm #ad - Rock phosphate is a 0-3-0 Fertilizer that should be added to soil before planting. Great nutrients for various plants such as flowers, trees, fruits, shrubs, and more. Old cobblers farm rock phosphate Fertilizer is a 5lb bag of organic fertilizer that is OMRI Listed.More information #ad
Helps build soil phosphate levels to ensure long term plant growth and helps with calcium deficient soil. Application rate is Minimum 5lbs per 1000 square feet.Brand | Old Cobblers Farm #ad |
Manufacturer | Old Cobblers Farm #ad |
Height | 1 Inches |
Length | 12 Inches |
Weight | 5 Pounds |
Width | 9 Inches |
Part Number | NA-8 |
More information #ad
7. Soil Mender
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Soil Mender Rock Phosphate 40 lb.
#adSoil Mender #ad - Also available in 5 lb size ASIN: B007ETHHPG. Promotes plant photosynthesis and high yields. Helps deter weed growth and is an all natural source of phosphorus for root development & fruit & flower production.More information #ad
Total nitrogen n - 00% available phosphate P2O5 - 3. 0% soluble potash K2O - 00%. Apply at a rate of 2 lbs per 100 sq ft. Derived from - Rock Phosphate.Brand | Soil Mender #ad |
Manufacturer | Soil Mender #ad |
Weight | 2 Pounds |
Part Number | SMRP040 |
More information #ad
8. The Seed Supply
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PhoSul Granular Rock Phosphate with Added Sulphur 0-16-0, 25lb Bag
#adThe Seed Supply #ad - Calcium ca 16. 0%. Granules should be incorporated in the soil at seeding or surface spread, or in blends, as granules, to provide vital phosphate for plant growth.Phosul is an organic, plant-available phosphate plus added elemental sulphur fertilizer. More sustainable and environmentally safe method to liberate rock phosphate for agricultural production.
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Silicon dioxide Si02 7. 0%. Total phosphate P2O5 16. 0%. Available phosphate P2O5 6. 0%. In the soil, phosphate in rock phosphate is biologically transformed into plant-available phosphate and gypsum. Derived from rock Phosphate, Elemental sulphur, and non-crysalline Silica. Sulfur s 4. 0%.Brand | The Seed Supply #ad |
Manufacturer | PhoSul #ad |
Weight | 25 Pounds |
Part Number | PhoSul-25 |
More information #ad