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Organic Liquid Seaweed and Kelp Fertilizer Supplement by Bloom City, (8 oz) Concentrated Makes 45 Gallons

4.6 4.6 out of 5 stars 4,559 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Garden Fertilizers by Bloom City
$11.99 $1.50 per Ounce
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1/2 Pint (8 oz)
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Purchase options and add-ons

Brand Bloom City
Item Weight 8 Ounces
Item Form Liquid
Liquid Volume 45 Gallons
Specific Uses For Product Lawn,Organic

About this item

  • FULLY ORGANIC SEAWEED AND KELP: A seven species blend of Ascophyllum Nodosum, Palmaria Palmata, Ecklonia Maxima, Laminaria Saccharina, Chlorella Vulgaris, Arthrospira Platensis, and Chondrus Crispus.
  • EXTRACTED TO PROTECT NATURAL ENZYMES: Clean Kelp’s unique processing techniques give the cleanest possible kelp extract. Get all the benefits of natural kelp enzymes and hormones without the non-nutritious fibrous pulp that gives other kelps their thick, brackish appearance. You can see the difference.
  • 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 every stage of growth for root and stem health.
  • 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 manufacturing methods to create the world’s best craft growing nutrient systems

Additional Details

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Frequently bought together

Organic Liquid Seaweed and Kelp Fertilizer Supplement by Bloom City, (8 oz) Concentrated Makes 45 Gallons
$11.99 ($1.50/Ounce)
Get it as soon as Tuesday, May 14
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Sold by TPS Nutrients and ships from Amazon Fulfillment.
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Bloom City Professional Grade Ultra Pure Cal-Mag Growing Fertilizer, 1/2 Pint (8 oz)
$11.99 ($1.50/Ounce)
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Product details

  • Package Dimensions ‏ : ‎ 6.14 x 1.97 x 1.97 inches; 8 ounces
  • Date First Available ‏ : ‎ December 8, 2021
  • Manufacturer ‏ : ‎ Bloom City
  • ASIN ‏ : ‎ B08JHHFZVG
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.6 4.6 out of 5 stars 4,559 ratings

Important information

Ingredients

0

From the brand

Previous page
  2. Gradient Logo

    Bloom City's formulations are better for plants, people, and the planet. Our small team of botanists & plant chemists offer conscientious growers a clean and simple alternative to Big Ag fertilizers.

  3. Tomatos

    Raise Plants Healthy & Strong

    We created a line of Plant Nutrients supplements that provide essential nutrients and organic compounds plants need to grow strong.

  4. Keep It Simple & Safe

    Big fertilizer firms use harmful, outdated chemicals that are bad for people and the planet. Bloom City's nutrient systems offer craft growers a safe solution for large, clean blooms.

    We Love Big Yields

    Bloom City's unique formulas and probiotics generate high-quality yields without the low-quality, filler ingredients of other brands.

    Better For Our Plants & Our Planet

    Our sustainable fertilizers use many organic ingredients like wild Atlantic kelp, fish bone meal from the Pacific Northwest, and solar-evaporated potassium rather than industrially mined, all sourced in the USA.

  5. Organic Liquid Seaweed and Kelp Fertilizer Supplement by Bloom City
    Bloom City Professional pH Up + Down Control Kit for Balanced Plant Nutrition
    Bloom City Professional Grade Ultra Pure Cal-Mag Growing Fertilizer
    Liquid Silica Boost Fertilizer and Supplement by Bloom City

    The Plant Nutrients Series

    Visit the Store

  6. Sprouts

    Holistic Health For All Plants

    From houseplants to hydroponics, our nutrient systems have what you need for beautiful, healthy growing.

  7. Organic Earthworm Tea Concentrate and Compost and Bokashi Booster by Bloom City
    Lawn Life Super-Soil Microbes for Green Healthy Lawn Growth, Deeper Roots & Healthier Grass by Bl...
    Home Jungle - Complete Organic House Plant Fertilizer Nutrient System - Soil Myco Boost, Foliar F...
    Organic Wild Fish Fertilizer and Plant Supplement, Great for Roots and Soil, Made from Sustainabl...

    Shop All Bloom City Products

    Visit the Store

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Product Description

Product Header

Key Benefit 1

Key Benefit 2

Key Benefit 3

Key Benefit 4

Use Cases

Multiple applications for pots, garden beds and foliar spray.

Watering Can

Hose end sprayer

Application Type 3

Use in watering can for precision nutrition. Mix 5 mL per gallon of water during grow phase, mix 5-10 mL per gallon of water during bloom phase. Use with every watering.

Use with hose end sprayer for larger areas. Use a mixing ratio of 1:200, apply 1-2 times monthly.

Use as a foliar spray for rapid nutrient uptake. Mix with water at 20-40mL per gallon for all stages of growth, apply once weekly.

Plant Growth Series Highlight
CleanKelp pH Up pH Down Silica CAL-MAG Foliar Spray
Organic CleanKelp pH Up pH Down Silica Boost CAL-MAG Organic Foliar Spray
Customer Reviews
4.6 out of 5 stars
4,559
4.6 out of 5 stars
408
4.6 out of 5 stars
1,101
4.6 out of 5 stars
1,322
4.6 out of 5 stars
6,058
4.5 out of 5 stars
492
Price $19.99 $17.99 $15.99 $21.99 $16.97 $22.99
Hero ingredient Made with seven algae species Multiple bases for soil stability Multiple acids for soil stability Naturally sourced silica Calcium & magnesium Bio-available magnesium
Primary benefit Complete plant health & resilience Optimized mineral intake Optimized mineral intake Stronger, larger plants Improves plant health More nutrient absorption
How it works Promotes root & shoot growth Controls soil pH levels Controls soil pH levels Strengthens cell walls Prevents mineral deficits Promotes photosynthesis
Why Bloom City's better 100% organic & naturally sourced contents Maximized bases for optimized pH control Maximized acids for optimized pH control Made from reacted sand & fulvic acid More micronutrients & bio-availability 100% organic & sustainable

Bloom City Values

Big Harvest, Not Big Ag

Sustainable, Natural Sourcing

Keep it Simple, Keep it Safe

Bloom City gives the power of clean, regenerative gardening to the home grower with full-spectrum plant nutrition for bountiful yields in any growing environment.

Our emphasis on environmentally responsible production methods with natural & sustainable input sourcing makes for more bio-available nutrient outputs & safer, cleaner gardens.

Bloom City's nutrient systems are everything you need to grow lush, beautiful gardens without harsh chemical fertilizers. Harness the power of regenerative growing practices to create living soil & vibrant plants.

What's in the box

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    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    4,559 global ratings

    Customers say

    Customers say this is a great fertilizer for plants. They say it works well for them, their plants are happy with it and are blooming like crazy. They appreciate the no overwhelming smell and the value for money. Customers also appreciate the color and appearance of their plants. However, some customers dislike the lid.

    AI-generated from the text of customer reviews

    153 customers mention148 positive5 negative

    Customers are satisfied with the quality of the fertilizer. They mention that it helps their plants thrive, perk up beautifully, and bloom like crazy. They also say it promotes root growth and helps them develop strong root systems.

    "...Within a week and a half of using, almost every plant had new growth." Read more

    "...Plants are very green after 1 day!! The price is right too." Read more

    "...on my indoor plants and only after couple of applications I started seeing new growth and the plants look really happy...." Read more

    "...Like I said before this is great for foliar feeding your plants without any smell I use it on my indoor plants because I can't stand the smell of..." Read more

    105 customers mention99 positive6 negative

    Customers are satisfied with the performance of the fertilizer. They mention that it is affordable, effective, and safe for all their plants. Some say that it works well for their plants and has a 100% success rate. Some customers also say that the product increases productivity and makes the coir so much better.

    "...This fertilizer is affordable, effective, and safe for all my plants of various types...." Read more

    "...Oh wait, there's one. I didn't find this product sooner!It's amazing!..." Read more

    "...And, it is concentrated and makes a lot of product." Read more

    "This product is amazing. It starts working from the first time you use. It has made such a difference in my plants appearance...." Read more

    48 customers mention35 positive13 negative

    Customers like the smell of the fertilizer. They mention that it has no overwhelming smell and is a cleaner, less odorous kelp product.

    "...products had a lot of reviews on how it smelled but this thing doesn't smell at all. Do yourself and your plants a favor by getting this. 10/10." Read more

    "This product is great because it doesn't stink at all like other kelp products, it has very little to no scent...." Read more

    "...that all kelp is really high, so I can't complain much. It does smell a little, its fertilizer. Used it with fish emulsion and Superthrive...." Read more

    "...It's a cleaner less odorous kelp product. I'll send pictures later! Good stuff! I live in a small town...." Read more

    33 customers mention27 positive6 negative

    Customers like the value of the fertilizer. They mention it's good value for money, worth it, and worth giving a try.

    "...This fertilizer is affordable, effective, and safe for all my plants of various types...." Read more

    "...Plants are very green after 1 day!! The price is right too." Read more

    "...Thought I would try this clean kelp and the fertilizer seem like a good price would not put it in my reservoir ever again went sour overnight I'm..." Read more

    "...It is definitely worth giving a try." Read more

    30 customers mention30 positive0 negative

    Customers are satisfied with the color of the plants after using the fertilizer. They mention that the foliage looks great, deep green, and healthy. They also say that the product has made a difference in their plants appearance, making them vibrant, and shiny.

    "...couple of applications I started seeing new growth and the plants look really happy...." Read more

    "...The fertilizer works with the result that my trees and bushes look better than they have in years. Highly recommended." Read more

    "...on most of my house plants and they are definitely greener and more healthy looking.The only thing I don’t like is the price." Read more

    "...Deep green healthy looking plants with lots of blooms and/or new growth." Read more

    28 customers mention22 positive6 negative

    Customers find the fertilizer easy to use. They say it's simple, safe, and easy to add to water. They also say the directions are clear and easy follow. Some customers also mention that it helps their plants grow.

    "Easy to use product" Read more

    "...It’s so easy to add this solution to the water, give it a stir and watch the evolution. The leaves are perky and the blooms profuse...." Read more

    "Product is easy to mix and use. Sprayed in my hobby greenhouse as an organic boost for my plants." Read more

    "...because it didn't go as far as the product stated, it was awkward to use as it was heavy..... so I would Not buy from again!" Read more

    15 customers mention12 positive3 negative

    Customers like the organic fertilizer. They say it's a great source of potash for their veg garden and potted flowering plants. They also say it is non-toxic to pets and humans. Customers also mention that it produces beautiful, juicy tomatoes.

    "Love that this is organic and really helped with my tomato plants when we had too much rain...." Read more

    "...No fowl smell at all. Non toxic to pets & humans. Vegan! I will not use any another product, but this one! Thank you Bloom City!" Read more

    "...Cal-Mag, my tomato plants started blooming and produced beautiful, juicy tomatoes...." Read more

    "...BUTThere is no proof that it is organic and for that reason it will never touch my edible crops...." Read more

    20 customers mention0 positive20 negative

    Customers are dissatisfied with the lid of the fertilizer. They mention that the bottle came without a cap, with a foil seal but no screw-on cap. Some say that the seal on the bottle was popped open.

    "...the foil seal came open with a violent POP spraying drops in the air and onto my face...." Read more

    "The bottle came without a cap! The foil held and fortunately did not leak which was a surprise. Not sure why it was sent without a cap!" Read more

    "Item came with its protective top cover, however, no cap !" Read more

    "Came without a cap. I’ve used it before and had good results, a little frustrated that it came without a cap though" Read more

    So far so good!
    5 Stars
    So far so good!
    I've been adding this kelp feed to my regular waterings and foliar sprays for the last two months on my many houseplants and truly believe it's made a difference in their overall health and growth. Granted, my plants thrive outside and in my greenhouse under grow lights, but the kelp seems to have pushed them into overdrive. A neighbor gave me a healthy spider plant with some spiderettes in June. I propagated those spiderettes and they have already sent out runners with little plants of their own (which is unusual for plants less than a year old). The mother plant pictured has sent out new growth since I started with kelp. I've lost count after 20 new spiderettes. And the Boston fern was crispy fried with one healthy frond when I got it with the spider. The growth of my son's snake plant, Oscar, happened over 36 days, and this plant gets ambient light only. The Kimberly Queen fern was picked off the clearance shelf a month ago, and it's been rapidly sprouting new growth. I'm wary of fertilizers because some plants don't tolerate them as well as others, so I feel like this is a safe alternative. Yep, I pretty much think this stuff is liquid gold!
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    Top reviews from the United States

    Stephanie
    5.0 out of 5 stars My plants love this fertilizer!
    Reviewed in the United States on March 13, 2024
    Size: 1/2 Pint (8 oz)Verified Purchase
    All of my plants love this fertilizer. I’m very picky about fertilizers and prefer seaweed or kelp based, but some can be so expensive. This fertilizer is affordable, effective, and safe for all my plants of various types. Within a week and a half of using, almost every plant had new growth.
    3 people found this helpful
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    StaceyA
    5.0 out of 5 stars Amazing results!
    Reviewed in the United States on April 4, 2024
    Size: 1/2 Pint (8 oz)Verified Purchase
    So far, I am very happy with the results of this fertilizer! Plants are very green after 1 day!! The price is right too.
    Helpful
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    Josh
    5.0 out of 5 stars Plants seem to love it!
    Reviewed in the United States on May 4, 2024
    Size: 1/2 Pint (8 oz)Verified Purchase
    I’ve been using this as well as other products but I can tell a difference with the addition of this stuff. Root health is amazing and don’t seem to affect how the other products work. I’ve been using this with the fox farm trio and seems to be comparable to other kelp additives I’ve bought in the past.
    Helpful
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    Landon Beaulieu
    4.0 out of 5 stars It might not be organic but it works really well
    Reviewed in the United States on June 25, 2020
    Size: Gallon (128 oz)Verified Purchase
    This product is great because it doesn't stink at all like other kelp products, it has very little to no scent. I use it on my houseplants and succulents, it is a revolutionary kelp extract because it does not smell.

    BUT

    There is no proof that it is organic and for that reason it will never touch my edible crops.

    I have communicated with Bloom City Organics requesting documents proving their products were organic, and they could not produce any documents whatsoever.

    I do not consider the sellers word to be proof that the product is organic and for that reason I will not be using this product on my food crops. I like it a lot for houseplants, don't get me wrong but there's no way I'm putting this product on my organic food crop without organic registration or third party oversight to ensure it is actually organic.

    Unfortunately I bought two different products from this company, Bloom city organics. Seems kindof fishy that a company would be named Bloom city organics without any organic certification for their products.

    See for yourself, there's people reviewing this product saying things like they "believe it to be organic". I'm not a believer.

    If Bloom city produces some kind of proof their products are organic, I will foliar feed every single plant I have with it. I look forward to seeing their products as a registered for organic gardening.

    Edit: Bloom city refunded me for the product since I wasn't happy about the lack of proof the product is organic. I have to say Bloom city has great customer service and they really care about their products. Like I said before this is great for foliar feeding your plants without any smell I use it on my indoor plants because I can't stand the smell of kelp in my house. I recommend this product for any situation where you want to foliar feed without the nasty smell of kelp.
    233 people found this helpful
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    Joshua U.
    5.0 out of 5 stars Great product!
    Reviewed in the United States on April 11, 2024
    Size: 1/2 Pint (8 oz)Verified Purchase
    Accidentally dropped the open bottle and splashed this all in my eyes, nose and mouth. I'm not blind or dead so 5/5 stars!!! Oh the plants like it too.
    7 people found this helpful
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    teach4
    5.0 out of 5 stars Great plant food
    Reviewed in the United States on March 5, 2024
    Size: 1/2 Pint (8 oz)Verified Purchase
    This plant food is awesome. I have used it on my orchids, which haven’t bloomed in years, and one of the orchids has started to bloom! I used it on most of my house plants and they are definitely greener and more healthy looking.
    The only thing I don’t like is the price.
    3 people found this helpful
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    Sally J Hughes
    5.0 out of 5 stars healthier plants
    Reviewed in the United States on April 20, 2024
    Size: Quart (32 oz)Verified Purchase
    I have a daphne bush that has lovely fragrant flowers on it, but the plant looked yellow and the flowers have been sparse... I have been treating it with this seaweed tonic and it looks so much healthier... the leaves are "greening up"!!!
    One person found this helpful
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    RB
    5.0 out of 5 stars This thing works........
    Reviewed in the United States on February 9, 2024
    Size: Gallon (128 oz)Verified Purchase
    Someone in my gardening circle was raving about this product and they were not wrong. I used it on my indoor plants and only after couple of applications I started seeing new growth and the plants look really happy. I was little concerned about Kelp/Seaweed based fertilizer on indoor plants as some of the reviews on other products had a lot of reviews on how it smelled but this thing doesn't smell at all. Do yourself and your plants a favor by getting this. 10/10.
    4 people found this helpful
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