20 Best Blue Planet Liquid Seaweed in 2024 Reviews and Buying Guide

3,260 (rnd) Reviews Scanned

# Preview Product Rating
1 Liquid Seaweed for Plants (32 oz) Quart | Concentrated Liquid Kelp Supplement | Makes UP to 470... Liquid Seaweed for Plants (32 oz) Quart | Concentrated Liquid Kelp Supplement | Makes UP to 470... No ratings yet
2 Liquid Seaweed for Plants (128 oz) Gallon | Concentrated Liquid Kelp Supplement | Makes UP to 1,890... Liquid Seaweed for Plants (128 oz) Gallon | Concentrated Liquid Kelp Supplement | Makes UP to... No ratings yet
3 Organic Liquid Seaweed and Kelp Fertilizer Supplement by Bloom City, Quart (32 oz) Concentrated... Organic Liquid Seaweed and Kelp Fertilizer Supplement by Bloom City, Quart (32 oz) Concentrated... No ratings yet
4 Liquid Blue Bloom Booster (32 oz) Quart | Potassium Phosphorous Supplement for Flowering | for All... Liquid Blue Bloom Booster (32 oz) Quart | Potassium Phosphorous Supplement for Flowering | for... No ratings yet
5 Easy Weed Soluble Seaweed (3.5 oz) Soluble Kelp Supplement | for All Plants & Gardens | Makes UP to... Easy Weed Soluble Seaweed (3.5 oz) Soluble Kelp Supplement | for All Plants & Gardens | Makes UP... No ratings yet
6 BIOXTREME Liquid Seaweed Premium Concentrate - All Natural Kelp Fertilizer - Enhances Plant & Flower... BIOXTREME Liquid Seaweed Premium Concentrate - All Natural Kelp Fertilizer - Enhances Plant &...
7 Liquid Seaweed Fertilizer and Liquid Kelp for Plants. Magic Drop 0-1-2 Big Bloom Liquid Plant Food... Liquid Seaweed Fertilizer and Liquid Kelp for Plants. Magic Drop 0-1-2 Big Bloom Liquid Plant... No ratings yet
8 Seaweed Fertilizer for Plants, Premium Organic Liquid Kelp for Gardening, Concentrated Liquid Plant... Seaweed Fertilizer for Plants, Premium Organic Liquid Kelp for Gardening, Concentrated Liquid... No ratings yet
9 Maxicrop Liquid Seaweed (Kelp Extract, 32 Oz Maxicrop Liquid Seaweed (Kelp Extract, 32 Oz No ratings yet
10 Organic Sea-K for Plants Seaweed and Kelp Fertilizer Supplement Concentrated Extract Powder Nutrient Organic Sea-K for Plants Seaweed and Kelp Fertilizer Supplement Concentrated Extract Powder Nutrient
11 Organic Kelp Fertilizer by GS Plant Foods - Omri Listed(1 Gallon) - Liquid Kelp Concentrate for... Organic Kelp Fertilizer by GS Plant Foods - Omri Listed(1 Gallon) - Liquid Kelp Concentrate for... No ratings yet
12 Medina Liquid Seaweed Fertilizer for Plants - Concentrated Seaweed Fertilizer for Lawn and Garden -... Medina Liquid Seaweed Fertilizer for Plants - Concentrated Seaweed Fertilizer for Lawn and Garden... No ratings yet
13 Neptune's Harvest Seaweed Fertilizer 0-0-1, 16 Ounce Neptune's Harvest Seaweed Fertilizer 0-0-1, 16 Ounce No ratings yet
14 Seaweed Extract Soluble Powder Fertilizer - Marine Magic 100% Natural Soluble Kelp Powder Fertilizer... Seaweed Extract Soluble Powder Fertilizer - Marine Magic 100% Natural Soluble Kelp Powder...
15 Kelp-tivate Liquid Seaweed Concentrate, Super Plant Food Grow Nutrients, 8oz. Kelp-tivate Liquid Seaweed Concentrate, Super Plant Food Grow Nutrients, 8oz. No ratings yet
16 Sea Kelp for Lawn & Plants- OMRI Listed for Organic Use- Seaweed Soil Treatment for Turf Grass &... Sea Kelp for Lawn & Plants- OMRI Listed for Organic Use- Seaweed Soil Treatment for Turf Grass &... No ratings yet
17 Maxicrop 1-Liter Seaweed Plus Iron Maxicrop 1-Liter Seaweed Plus Iron No ratings yet

Bestseller No. 1
Liquid Seaweed for Plants (32 oz) Quart | Concentrated Liquid Kelp Supplement | Makes UP to 470...
  • SEAWEED USABLE BY PLANTS: Derived from organic Ascophyllum Nodosum Seaweed which naturally contains carbohydrates, micro-nutrients, and organic...
  • ALL VARIETIES OF PLANTS WILL BENEFIT: Such as citrus, fruit trees, garden vegetables and herbs, houseplants, succulents and cacti, flowers, shrubs,...
  • FORMULATED FOR ALL TYPES OF GARDENS/GROWING MEDIA: Can be used in soil, hydroponic, coco coir, rockwool, clay pellets, aeroponic gardens etc.
  • THE POWER OF SEAWEED IN A BOTTLE: Our Liquid Kelp supplement helps overall plant vitality for all varieties of plants growing in any type of garden!
  • TRUSTED BRAND: Blue Planet Nutrients wants you to succeed so our products are specially formulated for success in the garden!
Bestseller No. 2
Liquid Seaweed for Plants (128 oz) Gallon | Concentrated Liquid Kelp Supplement | Makes UP to 1,890...
  • SEAWEED USABLE BY PLANTS: Derived from organic Ascophyllum Nodosum Seaweed which naturally contains carbohydrates, micro-nutrients, and organic...
  • ALL VARIETIES OF PLANTS WILL BENEFIT: Such as citrus, fruit trees, garden vegetables and herbs, houseplants, succulents and cacti, flowers, shrubs,...
  • FORMULATED FOR ALL TYPES OF GARDENS/GROWING MEDIA: Can be used in soil, hydroponic, coco coir, rockwool, clay pellets, aeroponic gardens etc.
  • THE POWER OF SEAWEED IN A BOTTLE: Our Liquid Kelp supplement helps overall plant vitality for all varieties of plants growing in any type of garden!
  • TRUSTED BRAND: Blue Planet Nutrients wants you to succeed so our products are specially formulated for success in the garden!
Bestseller No. 3
Organic Liquid Seaweed and Kelp Fertilizer Supplement by Bloom City, Quart (32 oz) Concentrated...
  • FULLY ORGANIC SEAWEED AND KELP: A seven species blend of Ascophyllum Nodosum, Palmaria Palmata, Ecklonia Maxima, Laminaria Saccharina, Chlorella...
  • EXTRACTED TO PROTECT NATURAL ENZYMES: Clean Kelp’s unique processing techniques give the cleanest possible kelp extract. Get all the benefits of...
  • SIMPLE AND SAFE TO USE FOR ALL PLANTS: Add to every watering, it’s that easy. No risk of over application, plants love kelp. Clean Kelp aids in...
  • FOR BOTH PLANTS AND LAWNS: Add Clean Kelp to all of your houseplants, vegetable garden, and your lawn for healthy green plants.
  • FORMULATED AND MADE IN THE USA: Designed by botanists and plant chemists. Bloom City chooses only the highest quality ingredient sources and...
Bestseller No. 4
Liquid Blue Bloom Booster (32 oz) Quart | Potassium Phosphorous Supplement for Flowering | for All...
  • POTASSIUM & PHOSPHOROUS SUPPLEMENT: Potassium and phosphorous are vital elements in plant processes such as photosynthesis and promote vigorous...
  • REVITALIZE PLANTS: Use Liquid Blue Bloom Booster on your plants during mid-late flower development for healthy strong plants and well developed...
  • VERSATILE FORMULA: Can be fed to all varieties of plants growing in almost any type of garden. Liquid Blue can be used along with other garden...
  • EASY TO USE: Simply dilute a small amount per gallon of water and water your plants with the solution. Liquid Blue an also be used as a foliar spray.
  • BLUE PLANET NUTRIENTS: Trusted brand from Houston, TX providing high quality, professional grade garden fertilizers and supplements since 2010.
Bestseller No. 5
Easy Weed Soluble Seaweed (3.5 oz) Soluble Kelp Supplement | for All Plants & Gardens | Makes UP to...
  • REVITALIZE PLANTS: Use Easy Weed Soluble Kelp Supplement for larger, stronger, healthier plants! A must-have for any garden, kelp is known to...
  • FOR ALL PLANTS & GARDENS: Houseplants, Orchids, Succulents, Cacti, Vegetables, Fruit, Micro-greens, Seedlings, Flowers, Roses, Cut Flowers, Herbs,...
  • VERSATILE SUPPLEMENT: Simply mix in water (see directions) and water your plants! Can also be used as a foliar spray to enhance plant growth and...
  • SOLUBLE POWDER FORM: Save money and space with this lightweight, compact product formulated for easy application and low maintenance, long term...
  • BLUE PLANET NUTRIENTS: Trusted brand from Houston, TX providing high quality, professional grade garden fertilizers and supplements since 2010.
Bestseller No. 6
BIOXTREME Liquid Seaweed Premium Concentrate - All Natural Kelp Fertilizer - Enhances Plant & Flower...
  • THE GOODNESS OF Seaweed nutrients FOR YOUR PLANTS NEEDS - This seaweed liquid nutrient is highly beneficial for your plants and a source of naturally...
  • USE NATURAL TO GROW NATURAL - BioXtreme liquid seaweed extract is a natural way for you to help strengthen and grow your plants. Unlike modern...
  • CAREFULLY EXTRACTED TO PRESERVE NUTRIENTS - Our extraction process is non-destructive, maintaining the integrity and efficacy of all beneficial...
  • SAFE, EFFECTIVE & EASY TO USE - This organic seaweed liquid plant nutrient can be used as a foliar spray for your plants, or mix it with water and...
  • SUSTAINABLY HARVESTED IN MAINE USA - BioXtreme is a leading authority of seaweed-based technology in the United States. With over three decades of...
Bestseller No. 7
Liquid Seaweed Fertilizer and Liquid Kelp for Plants. Magic Drop 0-1-2 Big Bloom Liquid Plant Food...
  • Liquid Seaweed Fertilizer: Magic Drop is a powerful liquid seaweed concentrate enriched with nutrients, fulvic acid, and amino acids, designed to...
  • Liquid Kelp for Plants: This versatile sea kelp fertilizer is ideal for indoor plants, outdoor gardens, hydroponic systems, aeroponic setups, and...
  • Seaweed Extract Liquid: The slow-release formula ensures a steady supply of nutrients, providing prolonged plant growth and making Magic Drop a...
  • Liquid Seaweed Concentrate: Made from sustainably sourced ocean kelp, Magic Drop is an eco-friendly and environmentally responsible choice, helping...
  • Liquid Kelp Extract for Plants: With its easy-to-use liquid concentrate form, Magic Drop can be effortlessly integrated into your gardening...
Bestseller No. 8
Seaweed Fertilizer for Plants, Premium Organic Liquid Kelp for Gardening, Concentrated Liquid Plant...
  • Derived from natural seaweed extract, seaweed and kelp contains in trace minerals from the sea and active plant growth compounds to promote healthy...
  • Enhances nutrient uptake and root development, improves stress tolerance, and stimulates flowering and fruiting for vigorous plants.
  • Finely filtered liquid form ensures easy application and rapid absorption by plants, delivering immediate benefits for optimal plant performance.
Bestseller No. 9
Maxicrop Liquid Seaweed (Kelp Extract, 32 Oz
  • Pure seaweed extract’s initiate cell growth and vigorous root and stem growth
  • Trace elements that Maxi crop Liquid Seaweed contains are important as activators of enzyme systems
  • Maxi Crop's basic is a pure 100% seaweed extract
Bestseller No. 10
Organic Sea-K for Plants Seaweed and Kelp Fertilizer Supplement Concentrated Extract Powder Nutrient
  • 【Kelp seaweed extract】has long been known as one of the most effective, natural and potent ways to improve your plants. Improve resistance to...
  • 【OMRI and EU ECOCERT Organic】Dual Organic Agriculture certification (National Organic Program) for both USA and Europe for Organic farming and...
  • Sea-K Kelp is extracted from species Ascophyllum nodosum, Sargassum, Laginariausing the most advanced, 【low temperature enzymatic hydrolysis...
  • 【100% Water Soluble Powder】 Suitable for any growing system or media, including greenhouse & outdoor drip irrigation, hydroponics, coco, peat,...
  • 【High Potassium(K)】 For vibrancy, with over 18% soluble K! Also high levels of soluble Magnesium (Mg), Calcium (Ca), Iron (Fe), etc.
Bestseller No. 11
Organic Kelp Fertilizer by GS Plant Foods - Omri Listed(1 Gallon) - Liquid Kelp Concentrate for...
  • OMRI ORGANIC LISTED SEAWEED & KELP FERTILIZER: Liquid Kelp is a natural plant food that provides a range of benefits for plant health and nutrition....
  • ONE OF NATURE’S ‘MIRACLE’ PLANT FOODS: Made from the finest seaweed plant Ascophyllum Nodosum, this is one of nature’s miracle plant foods....
  • IMPROVES OVERALL PLANT NUTRITION AT HOME OR COMMERCIALLY: GS Plant Foods sea kelp fertilizer is used extensively on a commercial basis, as well as at...
  • EASY TO APPLY FOR NATURAL GREAT RESULTS: Apply liquid kelp to improve growing conditions in all growth stages. To use, simply mix 2 ounces of this...
  • TRUSTED & RELIABLE: At GS Plant Foods, we understand that you are placing your trust in us to provide you with the highest quality organic seaweed...
Bestseller No. 12
Medina Liquid Seaweed Fertilizer for Plants - Concentrated Seaweed Fertilizer for Lawn and Garden -...
  • BOOSTS GERMINATION AND ROOT DEVELOPMENT: Medina Liquid Seaweed Fertilizer for Plants enhances seed germination and promotes strong root growth. This...
  • VERSATILE APPLICATIONS FOR EVERY GARDENER: Perfect for use as a transplant aid, foliar spray, or soil drench, this seaweed fertilizer for plants...
  • ENHANCES FLOWERING AND FRUITING: With Medina Liquid Seaweed Fertilizer, your flowering plants will produce more blooms, and your vegetable plants will...
  • IDEAL FOR ALL PLANT TYPES: From houseplants and garden vegetables to flowering plants and shrubs, Medina Liquid Seaweed Fertilizer benefits all...
  • TRUSTED BRAND FOR QUALITY GARDENING: Medina is committed to helping you succeed in your gardening endeavors. Our liquid seaweed fertilizer for plants...
SaleBestseller No. 13
Neptune's Harvest Seaweed Fertilizer 0-0-1, 16 Ounce
  • Neptune's Harvest seaweed plant food is made from seaweed (ascophyllum nodosum)
  • Sourced from the North Atlantic Ocean
  • It is an excellent addition to Neptune’s Harvest Fish Fertilizer, or other fertilizing program
  • It is an excellent addition to Neptun's harvest fish fertilizer or any fertilizing program
Bestseller No. 14
Seaweed Extract Soluble Powder Fertilizer - Marine Magic 100% Natural Soluble Kelp Powder Fertilizer...
  • Natural Seaweed and Kelp: A blend of Ascophyllum nodosum and other natural ingredients to provide minerals, micronutrients, cytokinin, auxins, and...
  • Benefits All Plants and Lawn: Promotes strong growth, seed germination, root viability, bloom set, and size of flowers and fruits; Benefits fruit...
  • Increases Plant Vigor: Made from seaweed found in Atlantic waters, Ascophyllum nodosum, Marine Magic improves plant tolerance to excessive heat,...
  • Easy to Use: 100% water soluble seaweed powder suitable for any growing media including soil, coco, peat, rock wool, hydroponics; Each 2 oz packet...
  • Tested and Reviewed: This product is tested on various climatic conditions and on several plant types and is proven to work; It boasts 4.5+ reviews...
Bestseller No. 15
Kelp-tivate Liquid Seaweed Concentrate, Super Plant Food Grow Nutrients, 8oz.
  • High Concentrate Kelp Plant Food Boost
  • 100% Soluble Ocean Kelp
  • Big Blooms + More Produce
  • High % "K" 0-0-2 Potassium - Compare NPK’s
  • Ideal for foliar spray
SaleBestseller No. 16
Sea Kelp for Lawn & Plants- OMRI Listed for Organic Use- Seaweed Soil Treatment for Turf Grass &...
  • Seaweed 8%: Liquid Sea Kelp Concentrate blended with Ascophyllum Nodosum Seaweed harvested in the Icy North Atlantic.
  • Humic Acid 1%: Sea Hume is a Highly Concentrated form of Liquefied Carbon Derived from the Highest Quality Humate Source, Leonardite. Leonardite is...
  • Versatile Formula for Lawn and Garden: Sea Hume Can help increase the Transfer of Nutrients and Help your Lawn, Garden, and Plants Uptake Nutrients...
  • Concentrated Solution: Sea Hume can Enhance Conditions For Improving Plant's Tolerance to Abiotic Stressors like Drought and Extreme Temperatures.
  • Intense Kelp, Soil Conditioning Treatment: Seaweed has been used in Agriculture for Centuries and is Highly Trusted and Valued by Farmers All Over the...
SaleBestseller No. 17
Maxicrop 1-Liter Seaweed Plus Iron
  • A unique combination of pure seaweed extract
  • Can be sprayed directly onto foliage, or applied as a root drench
  • Prevents yellowing (chlorosis) of leaves, especially in acid-low (calcifuge) plants
.