SKU: 83792439014
sea kelp plant fertilizer

sea kelp plant fertilizer N-Ext Sea-K (Sea Kelp for Lawns) 0-0-5 Stress Reducer, Bloom and Root – Yard Mastery

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Description

sea kelp plant fertilizer N-Ext Sea-K (Sea Kelp for Lawns) 0-0-5 Stress Reducer, Bloom and Root – Yard MasteryN Ext Sea K is known in the professional applicator community as "microbe food," this special bio stimulant is your secret weapon in jump starting even the most tired soils or stressed lawns. 1 Quart covers up to 64,000 sq ft Analysis is 0 0 5:: N P K Benefits include deeper color, increased rooting, pest resistance, drought protection, increased nutrient uptake, and reduced senescence Safe for use on all turf types and ornamental plants Product

N-Ext Sea-K™ is known in the professional applicator community as "microbe food," this special bio-stimulant is your secret weapon in jump-starting even the most tired soils or stressed lawns. 

  • 1 Quart covers up to 64,000 sq ft
  • Analysis is 0-0-5::N-P-K
  • Benefits include - deeper color, increased rooting, pest resistance, drought protection, increased nutrient uptake, and reduced senescence
  • Safe for use on all turf types and ornamental plants

Product Description: 

Sea-K contains a highly concentrated Sea Kelp derived from the cold waters of the North Atlantic, as well as high concentrations of Auxins, Gibberellins, and Cytokinins. These, combined with the naturally occurring trace elements and minerals, will give an added boost to your fertility program.

For those on a budget, this can become your go-to bio-stimulant since you can use the low rate of 1/2 oz per 1,000 sq ft monthly to stimulate healthy soil, rooting, and rhizome activity. Sylvestor Stolons approved! In addition, this small quart bottle can be stretched up to 64,000 sq ft (see application rates below).

You can SAVE MONEY with our "mix and match" Build-a-Box option

For a list of all Greene County products, here is a link to the other options.

Application Information:

**We highly recommend you apply Sea-K with precision from a pump/battery hand can sprayer and water it in after application with at least 1/4" of irrigation or rain.

It can be applied with a quart hose-end sprayer bottle, too, but since this is concentrated and more expensive, it's better to control it with a pump/battery sprayer. We don't want you to waste this precious bio-stimulant.  Here is a video with hose-end sprayer instructions.

You could start out with the higher rate on your first application, then go to the lower rate for the remainder of the season and be in very good shape. 

Sea-K can be used on all grass types, including the following:

  • Cool-Season Lawns - Kentucky Bluegrass, Turf Type Tall Fescue (all fescues), Ryegrass.
  • Warm-Season Lawns - Bermuda, St Augustine, Zoysia, Centipede, Bahia.
 Coverage

64,000 sq ft at the low rate (1/2 oz/1,000 sq ft)

32,000 sq ft at the higher rate (1 oz/1,000 sq ft)

Application  Details

Best applied when outside air temps are under 85F, so if it's hot, apply in the early morning or evening

Apply every 30 days

Water-In  Instructions

Water into the soil within 24 hours with 1/4" of rainfall or irrigation

Do not apply if your lawn is saturated. Rinse excess off sidewalks and driveways to avoid staining

  • Label / Specs / SDS / Info: Sea-K Info,  Bio-Stimulant Guide
  • Package Includes: 1 Quart Bottle
  • Storage: Store in a cool, dry place away from direct sunlight. The product can be stored for 2 years under warehouse conditions.

Shipping Information:

Shipping Costs

Included for most states within the U.S.
NO P.O. Boxes

State Restrictions
Alaska (AK), California (CA), Hawaii (HI), and Oregon (OR)
Stickers

Yes, free stickers with this item.

Typical Delivery Time

4 - 7 business days

Product Type

Liquid Concentrate

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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: 83792439014

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Bobbi J.
Belleville, US
★★★★★ 5
WELL CONSTRUCTED. GOOD STITCHING ON NECKLINE AND SLEEVES. GOOD FOR TALL PERSON.
Size: X-Large, Color: Orange
The Automet women's loose-fit tank top is sized just right for me. I'm 5'11', 200 lbs., 57 years old. I've got some back fat that would be obvious in a tight top. This tank is loose enough to hide my back fat but not too loose. From the front, it does not appear loose at all. It's the back area that has extra room. It has a nice, scooped hem. One special feature is the double stitching on the neck and shoulders. It is well-made. It looks more expensive than it is. I bought the Automet tank top in the color orange. It is NOT see-through, nor is it thick. I live in Arizona, in the desert part, where it gets hot. This tank is thin enough to keep me comfortable from May to October when the heat hits. It's hard for me to find the "perfect" tank. I've tried so many. I feel you would be wise to give this tank a try. Worst case, you return it. I love the orange one so much, I plan to purchase all the colors for this hot summer coming up. I wish all of you the same happiness I have found with the Automet tank top.
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Reviewed in the United States on April 30, 2026
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Ann Fullwood
Chelsea, US
★★★★★ 5
Good top!!
Size: X-Large, Color: White
True to size! Feels good and is comfortable. Recommended to others!!
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Reviewed in the United States on May 30, 2026
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DPS
Boise, US
★★★★★ 5
Comfortable and convenient
Size: 34, Color: Kangaroo
Got these to replace some old cargo shorts that aren't made anymore and are developing holes. So far I have been very pleased. The waist fits true to size and the fit is relaxed through the seat and thigh, which is exactly what I was looking for since I have somewhat stout thighs relative to my waist. I'm 6'0", about 200lbs, with a 34-35" waist. The material feels sturdy without being overly heavy, about as thick as old ripstop BDUs. Front slash pockets are generously deep; no problem carrying a 5.5" smartphone in there. Rear pockets are sufficiently deep and are narrow enough that a trifold wallet won't turn itself sideways. Cargo pockets are adequately sized and have hook and loop closures at the corners. The "tech" pocket behind the left cargo pocket is very convenient for me, as I'm used to carrying my phone on that side. I can slide my Samsung Galaxy S25 in there and it fits well without worrying about it falling out. I wore these for a couple of days at Disney World last week and they performed very well. Moving my phone to that tech pocket made rides with lap bars or belts much more comfortable. I even washed these shorts at the resort so I could wear them on the long drive home. If I could change anything about them, I'd add about an inch of length, as I prefer a full 11" inseam on cargo shorts. And maybe add a button or some kind of closure to the rear pockets. But aside from that, these have been pretty close to perfect. I expect I'll order more as I replace more of my older cargo shorts.
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Reviewed in the United States on April 23, 2026
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Campbell1951
Massapequa, US
★★★★★ 5
Great Shorts
Size: 38, Color: Grain Twill
Ok.... I have bought these several times, the shorts aren't wearing out or tearing, I am losing weight,.... I like these shorts so much, I keep buying them in my new size... Every size (44 42 40 and 38) has fit well, good length, and are comfortable... Pockets are functional, left side fits my smart phone... Yes, I will buy them again....
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Reviewed in the United States on May 16, 2026
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GradyW
Omaha, US
★★★★★ 4
Lightweight and comfortable
Size: 42, Color: Kangaroo, Size: 42, Color: Kangaroo
The fit is just right and they're very comfortable. This is the second pair I've bought and the review could easily be for both pairs. The only difference between them is the color. I deducted a star because they really need at least 2 more belt loops. Why do manufacturers skimp on something that would be so inexpensive to do right? The belt loops on either side of the front button are 11 inches apart. Ideally they'd be at most 5 or 6 inches apart. Anyway, these will be the shorts I wear to do my yard work. I can put my phone in the right hand cargo pocket and know that the Velcro closure won't let it fall out while I'm working. My keys will go in the left side cargo pocket. I'd definitely buy them again. The price is right and they are comfortable to wear.
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Reviewed in the United States on May 12, 2026

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