SKU: 7954289001
seaweed tonic for plants without fertilizer

seaweed tonic for plants without fertilizer N-Ext Sea-K (Sea Kelp for Lawns) 0-0-5 Stress Reducer, Bloom and Root – Yard Mastery

Sale price$20.38 Regular price$22.64
Save 10%

Pay in installments of $5.66 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Oct 6 - Oct 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

seaweed tonic for plants without 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

Cancel | Return | Exchange

All sales are final; no cancellations, returns, or exchanges

 

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: 7954289001

Discover Niche Categories That Outsell seaweed tonic for plants without fertilizer

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 27 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Denise
Port Orchard, US
★★★★★ 5
Great for the price
Size: Regular, Style: 50 Count
These puppy pads are actually pretty good for the price I wasn’t expecting anything amazing but they do the job the absorbency is decent and it dries fast enough where my dog isn’t tracking mess everywhere the leak proof backing works most of the time and I haven’t had any major issues with it soaking through I also feel like the attractant helped a little with training because my dog started using them pretty quickly Only thing is if your dog pees a lot or goes near the edge it can leak a little and they are kind of thin compared to more expensive brands plus they slide around since there’s nothing on the bottom to hold them in place Overall I’d still buy them again they’re a good budget option especially for puppies or smaller dogs
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
S
Verified Purchase
SainteD
Alexandria, US
★★★★★ 3
Good size but pee leaks through :(
Size: X-Large, Style: 40 Count, Size: X-Large, Style: 40 Count
I have a 13-14 year old dog who is starting to have very frequent accidents in the house despite us taking her outside every couple of hours, she just drinks too much water which doesn’t mesh well with her weakening, old bladder. She tends to have an accident in two areas (the kitchen and right by the front door hallway) so we decided to buy some puppy pads to minimize the mess & aid in cleanup since clearly taking her outside every couple frequently isn’t helping reduce accidents. We chose these because of the size & price, which are both fantastic compared to others. It perfectly fits the two areas she tends to go so we only need to use one per area and to our surprise, she still remembers how to use puppy pads so she adapted quickly. But unfortunately, these don’t hold all of her pee as they are very thin. I just cleaned up the kitchen puppy pad and saw moisture under the pee spot on the pad. So while it does dramatically reduce how much we need to clean up (we were using one paper towel roll every 3 days just for her accidents), we still need to wipe down the floor with pet accident cleaning spray & mop. It’s not that big of an issue but it is still a bit frustrating that they don’t hold fluid well. So keep that in mind if you decide to order these, that you might still need to wipe down the floor under where your puppy/dog pees. We’ll be trying a different brand when we run out of these to see if that’s any better.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
M
Verified Purchase
Michele Martinez
Phoenix, US
★★★★★ 5
Great buy
Size: Giant, Style: 40 Count
These pads are great. Absorbent and leak resistant. Very roomy for my chihuahua to turn in her inconsistent circles before and durable enough for her to "dig" after without ripping or bunching up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
C
Verified Purchase
CathP
Boise, US
★★★★★ 5
Brilliant fun for dog, except for...
I have a 3yo German Shepherd Dog (GSD) and he can be very hard on toys. On days 1 and 2 he had such fun and we laughed at his good times! Then...Day 3...cue the Jaws Music... While I was away for 10 minutes, he dismantled the ball into tiny pieces! Even so, the ball continued to light up, make sounds and entertain my GSD!! Coolest dog toy ever! If you have a heavy chewer....watch out! Otherwise, I highly recommend!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2024
A
Verified Purchase
Ahmadi Murrell
Waukegan, US
★★★★★ 1
Disappointing Dog Toy – Short-Lived and Ineffective
I purchased this dog toy hoping it would keep my dog entertained and engaged, but unfortunately, it has been a huge disappointment. The first one I received only worked for about an hour before completely stopping. I decided to give it another chance and ordered a second one, hoping it was just a fluke. Unfortunately, the second one lasted even shorter—only 30 minutes—before completely ceasing to function. It no longer vibrates, rotates, or interacts in any way. Even when fully charged, the toy barely lights up and doesn’t do anything useful. This is a terrible product, and I’m genuinely shocked by the positive reviews. Save your money—this toy is not worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2025

recommand products