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๐ฑ Elevate your garden game with natureโs most potent seaweed elixir!
Greenleaf Nutrientsโ Organic Sea-K is a premium, 100% water-soluble kelp and seaweed extract powder, packed with over 70 vitamins, minerals, and enzymes. Certified organic by OMRI and EU ECOCERT, it uses advanced low-temperature enzymatic hydrolysis to preserve nutrient purity. With 18%+ soluble potassium and rich bioactives, it supports robust plant growth, stress resistance, and enhanced fruit and flower quality across all growing media and systems.
| ASIN | B096L9TP26 |
| Application Method | Dissolve the powder in water and apply to plants |
| Best Sellers Rank | #121,627 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2,135 in Garden Fertilizers |
| Brand | Greenleaf Nutrients |
| Brand Name | Greenleaf Nutrients |
| Coverage | Medium |
| Customer Reviews | 4.6 out of 5 stars 565 Reviews |
| Item Form | Powder |
| Item Weight | 200 g |
| Manufacturer | Greenleaf Nutrients |
| Mixing Ratio | 1 tsp dissolved per 2 Gal of water and fed to plants |
| Model Number | Sea-K-200g-FBA |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | Sea-K-200g pouch |
| Specific Uses For Product | Hydroponics, Soil, Plant Growth, Root Feeding and Foliar |
| Target Species | plants |
| UPC | 742776993208 |
| Unit Count | 7.05 Ounce |
J**N
I love it!!
I will keep this in my rotation. Works great as folier or root drench. I love it in those super hot days when plants get stressed. It helps them recover better.
P**A
After One Year of Use -- Best Fertilizer I've ever used
Bought this in June 2025 as an avid orchid collector. They say it takes a bit to truly observe the long term effects of proper fertilizing in your orchid collection which has been true in my experience. All I can say is, this is absolutely a staple in my orchid growing routine now. I use half a teaspoon per gallon because regular and lower dosage is better for orchids IMO. Anyway, the blooms I've had since I began using this a little under a year ago have been some of the strongest in my collection. Orchids that struggled to bloom again are spiking etc. Highly recc.
N**R
Plants loved it
My plants loved this. I added this to my transplant routine and my plants stayed perky. Was easy to add to a water bottle and dissolved fast
S**J
Fantastic
For whatever reason this prime order was sent out through the post office and they lost it. Amazon immediately refunded the money then I found the product locally in a garden center. It works absolutely fantastic. I grow indoor mini tomatoes and mini sweet peppers over the winter plus a multitude of various house plants the seedlings are some of the strongest Iโve had in a long time and the colors are coming back on my silver dollar jades, and other succulents
A**A
Huh?!!
I think this product musta came from a different county bc the writing & measurments on bag r NOT explanatory or easy to figure out how much to use. So I went on the light side of 1 top per gallon. My babies seem to like the stuff but I doubt i will buy again.
J**Y
Excellent on vegetables
Been using this for a month. Excellent on vegetables. Peas, tomatoes, peppers, and herbs look strong and productive. Will buy again.
E**D
Great stuff.
Mixes well. Use it for young and old plants. It is doing the job plants are thriving, good color.
J**Y
Some
This stuff is good ! I use it in hydroponics garden life and cannabis life. Plants love it!
S**M
Quality
Great for succulents, lithops and cactus. Goes a long way. Value for money
A**I
Solubility - amount - price - quality - effectiveness
Generally I like most kelp products. But compare to the price this one was really nice. The solubility is good. I just sprayed one time 1gr/L on my plants and I can say it works as expected. Yea. Good product.
M**M
The best.
Fantastic value and quality
J**E
Cheap and plants love it.
This plant food is very effective. Its also great value for money as its in powdered form, so your not paying for a diluted product. It comes in a small packet and looks quite funky with that artwork. It has a definite smell which some people may not like, but I think all kelp products share this trait.
R**G
Excellent quality
Excellent quality
Trustpilot
3 weeks ago
1 month ago