SKU: 23303891533
organic liquid seaweed fertilizer

organic liquid seaweed fertilizer Organic Liquid Kelp Seaweed 5 Gallons

Sale price$18.23 Regular price$20.26
Save 10%

Pay in installments of $5.07 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

organic liquid seaweed fertilizer Organic Liquid Kelp Seaweed 5 GallonsWhat is Organic Liquid Kelp Seaweed? GS Plant Foods Liquid Kelp is an organic seaweed fertilizer made from cold processed Ascophyllum nodosum, harvested from the clean North Atlantic waters of Norway. This OMRI listed kelp extract is packed with over 60 trace minerals, natural growth hormones, and essential micronutrients that boost root development, enhance nutrient uptake, and increase plant resilience to stress. Perfect for gardens, lawns,

What is Organic Liquid Kelp Seaweed?

GS Plant Foods Liquid Kelp is an organic seaweed fertilizer made from cold-processed Ascophyllum nodosum, harvested from the clean North Atlantic waters of Norway. This OMRI-listed kelp extract is packed with over 60 trace minerals, natural growth hormones, and essential micronutrients that boost root development, enhance nutrient uptake, and increase plant resilience to stress.

Perfect for gardens, lawns, houseplants, and crops, this eco-safe fertilizer works like a multivitamin for your plants—helping them grow stronger, greener, and more productive. A single gallon makes up to 800 gallons of nutrient-rich solution, making it a sustainable and cost-effective choice for organic gardeners.

If you want to try another formula, GS Plant Foods Fish & Kelp Liquid Blend combines hydrolyzed fish fertilizer for NPK 2-3-1 nutrients and beneficial microbes with Norwegian Ascophyllum Nodosum seaweed to enhance roots, stress resistance, and plant growth.

Key Benefits:

  • Root Growth Booster: Encourages deeper, stronger root systems.

  • Stress Protection: Helps plants recover from drought, heat, and frost.

  • Improved Photosynthesis: Promotes darker leaves and better chlorophyll production.

  • Bigger Yields: Extends flowering and fruiting cycles for improved harvests.

  • Eco-Friendly: Safe for pollinators, pets, and waterways.

Ingredient Breakdown:

  • Norwegian Seaweed Extract (Ascophyllum Nodosum): Organic Liquid Kelp Seaweed is packed with cytokinins, auxins, and over 60 trace minerals like sulfur, magnesium, zinc, and iron to nourish your plants and support healthy growth.

How to Use:

  • Foliar Spray: Mix 1.5–2 oz per gallon of water and apply weekly.

  • Soil Drench: Add 2–4 oz per gallon when watering at the plant base.

  • Hydroponics: Use 1 tsp per gallon in nutrient solution.

  • Pro Tips: Organic Liquid Kelp Seaweed fertilizer should be applied once a week, ideally in the morning or late afternoon when plant stomata are open. Avoid using it during the midday sun or before rain to ensure the best results.

     

    Frequently Asked Questions:

     

    Q: What is Liquid Kelp made from?
    A: It’s made from 100% cold-processed Ascophyllum nodosum, a nutrient-dense brown seaweed harvested from the clean, cold waters of the North Atlantic Ocean.


    Q: Why use kelp on plants?
    A: Kelp is nature’s secret weapon. It’s full of micronutrients and natural growth hormones that support faster germination, better root growth, and stronger resistance to drought and disease.


    Q: Is this safe for edible plants and organic gardens?
    A: Absolutely. GS Plant Foods Liquid Kelp is OMRI-listed and safe for all plants, including fruits, vegetables, and herbs. It’s a great choice for organic gardening.


    Q: How often should I use it?
    A: Apply every 1–2 weeks during the growing season for best results. You can spray it directly on leaves or pour it into the soil.


    Q: Can I mix it with other fertilizers?
    A: Yes! Liquid Kelp pairs well with other fertilizers and even makes them work better by enhancing nutrient uptake.


    Q: Why is seaweed good for plants?

    A: Kelp isn’t just food from the sea—it’s a powerhouse for plant growth. It naturally contains compounds that stimulate root and shoot growth, help plants manage stress, and improve nutrient absorption. It’s like giving your garden an ocean-grown advantage.

    Liquid kelp, also known as seaweed extract, is a natural fertilizer made from seaweed. It contains a variety of beneficial nutrients, growth hormones, and trace elements that can promote plant growth and health. Many different types of plants can benefit from the application of liquid kelp, including:

     

    Vegetables: Various vegetables such as tomatoes, peppers, cucumbers, zucchini, broccoli, and leafy greens can benefit from liquid kelp's nutrients, which can lead to improved yields and overall plant health.

     

    Fruits: Fruit-bearing plants like strawberries, blueberries, grapes, citrus trees, and apple trees can benefit from liquid kelp, which may enhance flower and fruit production.

     

    Herbs: Culinary and medicinal herbs like basil, mint, cilantro, and oregano can thrive with the help of liquid kelp, as it supports their nutrient uptake and essential oil production.

     

    Ornamental Plants: Flowers and ornamental plants, including roses, orchids, lilies, and many others, can experience improved root development and enhanced flowering when treated with liquid kelp.

     

    Lawns: Applying liquid kelp to lawns can improve soil health, stimulate root growth, and increase the lawn's ability to withstand stressors like drought and disease.

     

    Shrubs and Trees: Landscape shrubs and trees, such as azaleas, rhododendrons, and various ornamental trees, can benefit from the use of liquid kelp to support their growth and overall vitality.

     

    Indoor Plants: Houseplants, such as spider plants, pothos, peace lilies, and many others, can also benefit from the application of liquid kelp, providing them with essential nutrients for healthy growth.

     

    Liquid kelp can be applied as a foliar spray or as a soil drench, and it is generally considered safe and beneficial for most plants. However, as with any fertilizer or plant supplement, it's important to follow the recommended application rates and guidelines to avoid over-fertilization, which could be detrimental to plants. Always read the product label and follow the manufacturer's instructions for the best results.

     

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 23303891533

Discover Niche Categories That Outsell organic liquid seaweed fertilizer

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 18 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
Good fit
Both filters fit well on my 2019 Honda CRV. I was able to replace without struggle. Did it on my own first time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
D
Verified Purchase
D. Henry
Houston, US
★★★★★ 5
Good Fit for 2025 Honda CR-V EX-L
Very happy with purchase. Fit like a champ. Be prepared to work to change the engine air filter. It is more about Honda's design the the filter itself.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
B
BeerMansin
Cuba, US
★★★★★ 5
Very durable and quality produced.
These filters seem very durable and quality made. The air filter looks exactly and feels exactly the same on the factory filter and very easy to replace. The cabin filter was also very easy to replace. This cabin filter feels a lot heavier and higher quality than the factory OEM. Be sure the rigid sides of the filter will fit on the left and right side when installing. If you try to install the filter with the information written on it facing out, then the cover will not fit properly. When the filter is in place correctly, the cover will be easy to put back in place. Both filters seem very durable and quality made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
S
Shannon
Lowell, US
★★★★★ 5
Perfect fit
I started changing my own filters about 10 years ago when I realized how much I could save, and how incredibly UNcomplicated it is. Anyone can find super easy instruction and videos on YouTube. Obviously some cars differ, but I've yet to find one that isn't as easy as replacing batteries in a remote. These filters are the exactly same size, and are made from good quality materials that are equally as good as the OEM filters I pulled out of my 2025 Honda CRV Gas vehicle. They're wrapped in plastic, so they're as clean as an be when you get them. It literally takes less than 10 minutes to switch out these filters, so you're saving a bundle by doing it yourself! Compared to having a dealer do it, this is a super great value, as they not only charge for labor, they probably charge twice as much for the filters themselves. So far, I have had any issues with air flow, and have not gotten any weird warning signs, so clearly they're functioning in the same way the dealers parts do. I mean, they look and act just like the parts already in the vehicle, so I don't expect any issues.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
M
Manny
Bozeman, US
★★★★★ 5
Easy DIY replacement
This engine and cabin air filter kit was an easy and worthwhile replacement for my vehicle. Both filters fit exactly as expected and matched the originals in size and shape. Installation was quick and straightforward. The cabin air filter slid right into place, and the engine air filter seated properly with no gaps or bending. Airflow immediately felt improved, and there were no warning lights or fitment issues after installation. The filters appear well made and sturdy, not flimsy or overly thin. It’s convenient having both the engine and cabin filters included in one kit instead of purchasing them separately, especially for routine maintenance. If you drive a compatible CR-V or Civic and want a simple, cost effective DIY replacement, this kit does the job well and saves time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026

recommand products