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Neptune's Harvest Organic Hydrolized Fish & Seaweed Fertilizer 36 0z

4.7 4.7 out of 5 stars 4,308 ratings

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36 Ounce
Fertilizer

Purchase options and add-ons

Brand Neptune's Harvest
Item Weight 2.25 Pounds
Item Form Liquid
Coverage Organic
Liquid Volume 36 Fluid Ounces

About this item

  • Grow a beautiful vegetable garden
  • Flowers and foliage will be stronger and more colorful
  • Blooms will be more plentiful, fragrant and longer lasting
  • Easy to mix and apply by hand, sprayer, or drip line

Additional Details

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Customer ratings by feature

Easy to use
4.6 4.6
Value for money
4.4 4.4
Scent
3.3 3.3

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$25.88 ($0.72/Ounce)
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Sold by PSB Retail and ships from Amazon Fulfillment.
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$20.41
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Neptune's Harvest Organic Hydrolized Fish & Seaweed Fertilizer 36 0z
Neptune's Harvest Organic Hydrolized Fish & Seaweed Fertilizer 36 0z
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Neptune's Harvest Seaweed Fertilizer, 0-0-1, 1 Gallon SKU-PAS1049388
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Price$25.88$25.49$15.86-5% $20.24
Typical:$21.40
-26% $15.34
List:$20.75
$61.15
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Wednesday, Mar 27
Get it Apr 2 - 5
Customer Ratings
Easy to use
4.6
4.5
5.0
4.7
5.0
Value for money
4.4
4.7
5.0
4.3
5.0
Scent
3.3
2.4
2.3
3.8
Sold By
Boon Sales
Aserson
JV Online LLC General Sales
Amazon.com
Sweetner
SGHP
weight
2.25 pounds
18 ounces
18 ounces
1.13 pounds
form
Liquid
Liquid
Liquid
Liquid
Liquid
coverage
Organic
Organic
Full
Full
Medium
1
liquid volume
36 fluid ounces
1 pints
18 fluid ounces
4 pints
1 gallons
specific uses
Organic
Organic
Organic
Organic,Plant Food
Organic
Plant Food
target species
Fish
Fish
Fish
Fish

Product Description

Neptune's Harvest Fertilizer is perfect for everything you grow! Our fish fertilizers are made from a variety of fresh caught North Atlantic fish which allows us to offer the best natural and organic products on the market!

fertilizer plant food natural organic fish seaweed safe tomato vegetable fruit lawn plant fertilizer plant food natural organic fish seaweed safe tomato vegetable fruit lawn plant fertilizer plant food natural organic fish seaweed safe tomato vegetable fruit lawn plant fertilizer plant food natural organic fish seaweed safe tomato vegetable fruit lawn rose fertilizer flower food natural organic fish seaweed safe tomato vegetable fruit lawn rose
Neptune's Harvest Fish Fertilizer Neptune's Harvest Fish & Seaweed Blend Fertilizer Neptune's Harvest Seaweed Plant Food Neptune's Harvest Tomato & Veg Formula Neptune's Harvest Rose & Flowering Formula
Customer Reviews
4.7 out of 5 stars
4,308
4.7 out of 5 stars
983
4.8 out of 5 stars
2,263
4.7 out of 5 stars
779
Dilution Rate 1:128 (1 oz per gal) 1:128 (1 oz per gal) 1:128 (1 oz per gal) 1:128 (1 oz per gal) 1:128 (1 oz per gal)
Outdoor Use Makes 32 Gallons Makes 32 Gallons Makes 32 Gallons Makes 32 Gallons Makes 32 Gallons
House Plants Makes 64 Gallons Makes 64 Gallons Makes 64 Gallons Makes 64 Gallons Makes 64 Gallons
Coverage ~ 2000 sq ft ~ 2000 sq ft ~ 2000 sq ft ~ 2000 sq ft ~ 2000 sq ft
Application Every 1-2 weeks Every 1-2 weeks Every 1-2 weeks Every 1-2 weeks. On Tomatoes & Vegetables use during the vegging stage of the plant Every 1-2 weeks. On Roses & Flowers use once buds begin to appear, when flowering begins
Benefits Perfect for everything you grow! Feed vegetables, flowers, trees, shrubs, lawn and more! Perfect for everything you grow! Feed vegetables, flowers, trees, shrubs, lawn and more! Made from Ascophyllum Nodosum that grows along the cold North Atlantic Ocean Floor Provides necessary nutrients to keep your plants vigorous with strong root zones and lush foliage, increasing its tolerance to various diseases, temperature and drought Uniquely formulated for flowering plants to increase vigor during flowering and to increase the volume and density of buds that produce healthy, vibrant flowers
N-P-K 2-4-1 2-3-1 0-0-1 2-4-2 2-6-4
Intended Use All Purpose. Vegetables, Flowers, Fruit, Trees, Lawns, and Containers. Indoor/Outdoor All Purpose. Vegetables, Flowers, Fruit, Trees, Lawns, and Containers. Indoor/Outdoor All Purpose. Vegetables, Flowers, Fruit, Trees, Lawns, and Containers. Indoor/Outdoor For best results: Tomato & Veg Formula should be used in combination with Rose & Flowering Formula For best results: Rose & Flowering Formula should be used in combination with Tomato & Veg Formula
Sprayer Friendly
OMRI Listed - -

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Neptune's Harvest Organic Hydrolized Fish & Seaweed Fertilizer 36 0z


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Important information

Safety Information

Keep out of reach of children. Do not take internally.

Ingredients

Organic fish hydrolysate, Organic seaweed (Ascophyllum nodosum)

Directions

Shake well before using. Prepare for one application only. Do not store diluted fertilizer. (House Plants): Use 1 tablespoon per gallon of water. Feed every 2-3 weeks. Do not over water. (Outdoor Plants): Use 1/8 Cup (1 fl. Oz.- 1:128) per gallon of water. Feed vegetables, flowers, trees and shrubs every 2-3 weeks. Apply until soil is saturated or as a foliar feed until leaves are wet, top & bottom. It is best to foliar feed early or late in the day. (Lawns): Use 1 gallon concentra

Customer reviews

4.7 out of 5 stars
4.7 out of 5
4,308 global ratings

Customers say

Customers say the fertilizer is a great product for growing vegetables and flowers. They say it's easy to use, with clear directions and it'll improve the yield of your plants. They also appreciate the color of the plants, saying they have fuller blooms and brilliance. Customers are happy with the organic, and quality of the product. However, some customers have reported issues with leakage. Customers have mixed opinions on value, and smell.

AI-generated from the text of customer reviews

295 customers mention291 positive4 negative

Customers are satisfied with the quality of the product. They mention it's a great product with excellent results. They say it makes their tomato plants and cucumber plants big and thriving. Some customers also say that the product smells like vomit, but it works great for all species of house plants.

"...stuff, it seems to generate new roots from the base of the plant, get stronger, and producing more fruits and veggies!..." Read more

"Very string odor, good stuff though" Read more

"...Fantastic results when used as directed!" Read more

"Works great, but it seems expensive for a little bottle." Read more

220 customers mention218 positive2 negative

Customers find the organic gardening product easy to use and say it makes their plants look healthier and produce large dark green leaves. They say it has helped their plants to grow and seems to have helped the roots. Customers also say it's a great source of nutrients in a form that plants can use. They also say that it helps make younger trees healthier and produces fruit faster than normal.

"...I did notice that when I use this kelp stuff, it seems to generate new roots from the base of the plant, get stronger, and producing more fruits and..." Read more

"...The harvests have been good.The only advice I would give is that if you have raised beds or planters, fertilizing every two weeks is not enough...." Read more

"Love using Neptune’s harvest products. Nutritional content is important to me and organic produce is more nutritious." Read more

"This product was highly recommended for all plants. I have noticed new and healthy growth. My orchids have even sprouted new buds." Read more

126 customers mention119 positive7 negative

Customers are satisfied with the color of their plants after using the fertilizer. They mention that their plants are lush, have fuller blooms, and are growing healthier. They also say that they have the best blooms and overall growth after using it for the first time. Customers also mention that they notice a difference in plant brilliance within a few days of use. They say that their annuals are bright and beautiful, and their tomatoes are still setting fruit.

"Easy to follow directions, great for all plants including seedlings" Read more

"The reason I continue to buy this is because I experience plant growth within days...." Read more

"...the knob (I found 1 at lowes a lot cheaper then amazon) and my plants did fantastic...." Read more

"...I did this about every 2 weeks. All the plants responded great and were fast growers...." Read more

50 customers mention50 positive0 negative

Customers are satisfied with the growth of their plants after using the seaweed fertilizer. They mention that their vegetables have started to grow very well, and their plants have all had growth spurts. Some customers also mention that the garden exploded in growth.

"...I use it every 7-10 days on my vegetables and they produce continuously. I have tomatoes, squash, and beans still putting out food." Read more

"...The plants took off after 1 use. I have already recommended this to my mom and sister who also garden." Read more

"...Tomatoes and cucumbers are currently growing fast. Also used on raspberry and blackberry bushes and getting lots of berries...." Read more

"...This is working BEAUTIFULLY!!! they are growing faster than ever with this. Yes, it does smell a bit but it just proves it’s real stuff...." Read more

49 customers mention46 positive3 negative

Customers find the liquid fertilizer easy to use. They say the directions on the bottle are easy to follow, and it's a fast and easy way to fertilize plants.

"Easy to follow directions, great for all plants including seedlings" Read more

"Easy to use" Read more

"My gardens (flower, herb, fruit and veg) loves this stuff. It's easy to use if you get one of those hose sprayers that do the dilution ratio with a..." Read more

"...Slight fishy smell but easy to get used to, almost pleasant after a while. Certainly doesn’t overwhelm or cause any fish smell on the fruits/veggies...." Read more

217 customers mention72 positive145 negative

Customers are mixed about the smell of the seeds and plants. Some mention that the smell is not terrible at all, while others say that it's really bad.

"...It developed an unusually foul smell and had to be discarded...." Read more

"...Nothing terrible smelling.We’ve been using this product for years in our garden, and it truly gives an extra boost to any plants...." Read more

"...they are growing faster than ever with this. Yes, it does smell a bit but it just proves it’s real stuff. See the before and after of the cucumbers!!!" Read more

"...My plants seem to love it. But oh god it smells AWFUL. Maybe I got a bad batch, maybe it's gone bad? I don't know. The smell also lingers...." Read more

60 customers mention35 positive25 negative

Customers are mixed about the value of the product. Some mention it's worth the price for 128 gallons of goodness for your plants. They also say it'll be worth it for fresh fruit, veggies, and herbs. However, others say it is very costly and the manufacturer is very poor.

"...It is smelling of course, the quality and price are good! It is a grear performer" Read more

"...It's not an inexpensive product but the yield you'll get from your vegetable garden will more than cover the cost...." Read more

"...I even give my roses some between granular feedings. Worth the cost!" Read more

"...Much more value for your money." Read more

51 customers mention3 positive48 negative

Customers are dissatisfied with the leakage of the fertilizer. They mention that the bottle top was loose and a lot leaked inside the box. Some customers also say that the seal was opened and the liquid dried out all around. They also say the bottle isn't great for pouring out of and the foil on top was open.

"...It's light brown and murky.The bottle isn't great for pouring out of, especially if you're only pouring out a teaspoon...." Read more

"...the hell is wrong with you and why you ordered something that is leaking nasty, brown, dead fish juice...." Read more

"...The cap of the bottle was broken which caused the product to spill out all over the inter bag and the bottle...." Read more

"...I don't know why there are no seals on these bottles. They're so cheap and easy to add to the bottling process." Read more

My Magical Neptune Elixir
5 Stars
My Magical Neptune Elixir
I use this on my garden one week out of the month, with regular fertilizer two weeks of the month, and also regular bone meal. I did notice that when I use this kelp stuff, it seems to generate new roots from the base of the plant, get stronger, and producing more fruits and veggies! These things are most likely to happen during/after kelp week.This stuff goes a long way for a small bottle. It dissolves perfectly, and there is a very faint ocean smell to the water when it is mixed in. Nothing terrible smelling.We’ve been using this product for years in our garden, and it truly gives an extra boost to any plants. Our garden truly thrives, and produces so many fruits and vegetables. We use it on almost everything: our flowers, strawberries, blueberries, melons, tomatoes, lettuce, garlic, cucumbers, onions, peppers, carrots, squash plants and more!Fish and Seaweed are known to build the natural sugar in plants. Flowers and foliage will be stronger and more colorful. Adding this to your garden will give you better vegetables/fruit yields. This is a great fertilizer for a few key reasons: The first is that it's a great source of Phosphorus which is used by new plants to produce strong roots and so is great for any root vegetables! This is a secret ingredient that all gardeners use to improve their garden! I highly recommend using for your plants!
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Top reviews from the United States

Reviewed in the United States on March 2, 2024
Size: GALLONStyle: FertilizerVerified Purchase
Customer image
5.0 out of 5 stars My Magical Neptune Elixir
Reviewed in the United States on March 2, 2024
I use this on my garden one week out of the month, with regular fertilizer two weeks of the month, and also regular bone meal. I did notice that when I use this kelp stuff, it seems to generate new roots from the base of the plant, get stronger, and producing more fruits and veggies! These things are most likely to happen during/after kelp week.

This stuff goes a long way for a small bottle. It dissolves perfectly, and there is a very faint ocean smell to the water when it is mixed in. Nothing terrible smelling.

We’ve been using this product for years in our garden, and it truly gives an extra boost to any plants. Our garden truly thrives, and produces so many fruits and vegetables. We use it on almost everything: our flowers, strawberries, blueberries, melons, tomatoes, lettuce, garlic, cucumbers, onions, peppers, carrots, squash plants and more!

Fish and Seaweed are known to build the natural sugar in plants. Flowers and foliage will be stronger and more colorful. Adding this to your garden will give you better vegetables/fruit yields. This is a great fertilizer for a few key reasons: The first is that it's a great source of Phosphorus which is used by new plants to produce strong roots and so is great for any root vegetables! This is a secret ingredient that all gardeners use to improve their garden! I highly recommend using for your plants!
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Reviewed in the United States on February 10, 2024
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Reviewed in the United States on March 5, 2024
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Reviewed in the United States on March 14, 2024
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Reviewed in the United States on January 23, 2024
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Reviewed in the United States on February 21, 2023
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Reviewed in the United States on February 23, 2024
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Top reviews from other countries

Melodie
5.0 out of 5 stars Plants seem healthy
Reviewed in Canada on March 16, 2024
Size: 36 OunceStyle: FertilizerVerified Purchase
Brian
5.0 out of 5 stars Fast shipping
Reviewed in Canada on October 20, 2021
Size: GALLONStyle: FertilizerVerified Purchase
Kevin
5.0 out of 5 stars Smells horrible but my plants love it
Reviewed in Canada on January 31, 2024
Size: 36 OunceStyle: FertilizerVerified Purchase
chronlyn
5.0 out of 5 stars Works.
Reviewed in Canada on July 8, 2023
Size: 36 OunceStyle: FertilizerVerified Purchase
Robin Martin-Penrose
5.0 out of 5 stars The smells not that bad but the results are AMAZING!!!!
Reviewed in Canada on May 14, 2023
Size: 36 OunceStyle: FertilizerVerified Purchase