Top 10 Soluble Seaweed Powder – Garden Fertilizers

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1. Nature's Pure Edge


Soil, Soluble Seaweed Powder Plant and Root All Natural Fertilizer Growth Stimulant. for Hydroponic, Aquaponic, and Foliar Application. Extra Large Jar Makes 78 Gallons. 0-0-16

Nature's Pure Edge #ad - Promotes chlorophyll content helping to provide more plant food, improves seed germination, root and plant establishment. Prevent and correct potash nutrient deficiencies that limit growth and yields. Makes approximately 78 gallons! all natural water soluble seaweed extract promotes plant and root growth providing readily available potassium. Suitable for all plants grown in the greenhouse, garden, landscape, and home. Encourages beneficial enzymes and contains trace elements. Promotes leaf growth, flowering, fruit set, and development.
BrandNature's Pure Edge #ad
ManufacturerNature's Pure Edge #ad

2. Wallace Organic Wonder


Wallace Organic Wonder Soluble Seaweed Powder Organic Fertilizer 10.7 Ounces

Wallace Organic Wonder #ad - 1 - teaspoon per gallon of water. 107 ounces of powder that will make approximately 65 gallons. The extract has been dried and made into a fine powder that is soluble in water.

Contain more than 70 minerals, vitamins, and enzymes. Feeds soil microbes. Wow soluble seaweed is a great choice for those who do not want to use synthetic rooting compounds or for those who want to feed their plants more than 70 minerals, vitamins, and enzymes. Known to accelerate growth, increase flowering and fruiting. Wow seaweed is extracted from Norwegian seaweed Ascophyllum nodosum and has a guaranteed analysis of 1-0-17.
BrandWallace Organic Wonder #ad
ManufacturerWallace Organic Wonder #ad

3. Seaweed Bliss


Seaweed Bliss Premium Soluble Seaweed Extract 0-0-17 1 lb

Seaweed Bliss #ad - Relieves stress in plants caused by extreme weather conditions. Improves seed germination and increases root development. Seaweed contains are important as activators of enzyme systems that initiate cell and root growth. Increases the size of flowers and fruit. Contains 70 minerals, vitamins, and enzymes.
BrandSeaweed Bliss #ad
ManufacturerPlantonix #ad

4. Maxicrop


27-Ounce, Maxicrop Pure Seaweed Extract Soluble Powder 0-0-17

Maxicrop #ad - Item weight: 2. 6 lbs. Brand: Maxicrop. Pure seaweed extract's natural growth stimulants cell growth and cause vigorous growth of both root and stem. Maxi crop's basic is a pure soluble seaweed extract.
BrandMaxicrop #ad
ManufacturerHydrofarm, Inc. #ad
Height5 Inches
Length5 Inches
Weight3 Pounds
Width6 Inches
Part NumberMCSP27OZ

5. The Seed Supply


Plant Root Development and Growth Stimulant 0-0-17 Organic Fertilizer, 1 Pound Soluble Kelp Seaweed Powder

The Seed Supply #ad - Improves the plant's leaf canopy to help the plant access and use more nutrients to increase root development. Certified Organic Maxicrop Kelp powder. Seaweed feeds and enriches plants and soil with a wide range of nutrients, growth stimulants and conditioners. Guaranteed 0-0-17 Analysis. Contains 70 minerals, vitamins, and enzymes.
BrandThe Seed Supply #ad
ManufacturerMaxicrop #ad
Weight1 Pounds

6. Technaflora


225 g fertilizers, Technaflora 720680 Soluble Seaweed Extract, Natural

Technaflora #ad - This highest-quality kelp is a rich natural source of over 60 chelated Nutrients, Vitamins, Amino Acids And Hormones That Stimulate Plant Growth And Has Been Celebrated For Its Natural Fertilizing Properties For Centuries. Soluble seaweed extract is A Concentrated, Comprehensive Gardener'S Tool In Powder Form. The concentrate is made from 100% pure, Organic Norwegian Kelp Harvested On The Atlantic Coast Of Canada. No assembly Required.
BrandTechnaflora #ad
ManufacturerTechnaflora #ad
Height3.9 Inches
Length3.6 Inches
Weight0.6 Pounds
Width3.6 Inches
Part NumberGL56720680

7. Blue Planet Nutrients


Easy Weed Soluble Seaweed 3.5 oz Ultra Concentrated | Makes UP to 385 GALLONS | Soluble Organic Kelp Supplement | Hydroponic Soil Aeroponic Soil-Less Coco Coir | for All Plants & Gardens

Blue Planet Nutrients #ad - Use 1/2 teaspoon per gallon of compost tea for best results! Blue planet nutrients uses only the highest quality ingredients in our hand-crafted nutrient formulas.

Easy weed can help produce more successful clones, stimulate growth, and even help produce more fragrant flowers and sweeter fruits. Can be added to compost tea to boost mineral and micro-nutrient content. Designed for use in all hydroponic systems, perlite, coco-coir, all soil-less mediums such as vermiculite, aeroponics, and in soil. Easy weed seaweed is our highly concentrated organic powder flake version of our popular BPN Liquid Seaweed product made to boost plant vitality.
BrandBlue Planet Nutrients #ad
ManufacturerBlue Planet Nutrients #ad
Weight0.29 Pounds



CDFA Organic Material Input Registered, MAXIROOT Organic Soluble Powder 0-0-17, 1 LB

MAXIROOT #ad - Use maxiroot organic Seaweed Powder as a Foliar Spray. Ascophyllum nodosum that Helps all Plants, Trees, Shrubs etc with Vigorous Growth. Cdfa omi registered. Great for trees, vegetable Plants, Shrubs, Lawn, Flowers and Houseplants. From fresh water of Norway to Your Garden.
ManufacturerCultivate Naturally #ad
Height5.5 Inches
Length3.5 Inches
Weight16 ounces
Width3.5 Inches

9. The Seed Supply


Soluble Kelp Seaweed Powder, 4 Ounces for Plant Root Development and Growth Stimulant 0-0-17 Organic Fertilizer

The Seed Supply #ad - Guaranteed 0-0-17 Analysis. Contains 70 minerals, vitamins, and enzymes. Seaweed feeds and enriches plants and soil with a wide range of nutrients, growth stimulants and conditioners. Improves the plant's leaf canopy to help the plant access and use more nutrients to increase root development. Certified Organic.
BrandThe Seed Supply #ad
Weight0.25 Pounds

10. True Aquaponics


Hydroponics, TrueNute Seaweed Extract Powder for Aquaponics, 16 Ounces, Stronger Than Liquid Soluble,Spray Plants, Soil and Foliar Spray. for Plants

True Aquaponics #ad - Fully water soluble-See Full Product Listing Below. 2i4 - 489 - 23iI. Free shipping on all orders!!! shipping occurs within 1 business day. Used on all plants in and out of the garden and greenhouse. Customer service is our number one goal!!! Any questions. Simplified instructions that are easy to understand are included with every shipment!!! .
BrandTrue Aquaponics #ad
ManufacturerTrue Aquaponics LLC ™ #ad