SKU: 3888919066
fertilizer for plant root growth

fertilizer for plant root growth PRO-LINE HFK-633 Root Growth Stimulant – Covington Naturals

$26.51 $29.46
Save 10%
No.2 Bestseller on mivipcard.com >

Pay in installments of $7.37 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Oct 1 - Oct 6

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

fertilizer for plant root growth PRO-LINE HFK-633 Root Growth Stimulant – Covington NaturalsCovington Humic Acid, Fulvic Acid, Kelp Seaweed Fertilizer, PRO LINE HFK 633: Superior Potassium Nitrate Root Growth Stimulant with Humic, Fulvic, and Kelp fertilizer for Plant & Tree Root Health Welcome to the world of healthy and vibrant plants! Introducing Covington Naturals Humic Acid, Fulvic Acid, Seaweed Kelp Fertilizer a powerful liquid bio stimulant that will transform your plants and lawns into thriving beauties. POTASSIUM NITRATE POWERED:

Covington Humic Acid, Fulvic Acid, Kelp Seaweed Fertilizer, PRO-LINE HFK-633: Superior Potassium Nitrate Root Growth Stimulant with Humic, Fulvic, and Kelp fertilizer for Plant & Tree Root Health


Welcome to the world of healthy and vibrant plants! Introducing Covington Naturals Humic Acid, Fulvic Acid, Seaweed Kelp Fertilizer - a powerful liquid bio-stimulant that will transform your plants and lawns into thriving beauties.  



✔️ POTASSIUM NITRATE POWERED: Enhances the rooting body and depth of your plants.

✔️ Humic Acid Infused: Provides essential nutrients for plant growth and improves soil structure.

✔️ Seaweed Extract: Aids in stress resistance, particularly from heat and drought.

✔️ Versatile Use: Suitable for all plant types – flowers, vegetables, fruits, trees, and more.

✔️ Organic and Safe: Made from natural ingredients, it's safe for your plants and the environment. Easy to Use: Comes in liquid form for easy application and quick absorption.


Boost your plants' health and productivity with Covington Naturals HFK-633. This powerful root growth stimulant is formulated with the highest quality potassium nitrate, humic acid, and seaweed extract. Perfect for all types of plants, this product is designed to enhance root body and depth while reducing stress from heat and drought. It's an ideal choice for gardeners seeking organic and effective solutions for their plants.



Our Soil & Plant Formula is designed to increase the rooting body and depth while decreasing stress pressure caused by heat and drought. Studies have shown you will use less water. This biologically active material contains Humic Acids and Sea Kelp to provide micronutrient food. With this powerful combination, your lawn and garden is sure to thrive! 

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: 3888919066

Discover Niche Categories That Outsell fertilizer for plant root growth

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 18 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Stacie
Boise, US
★★★★★ 5
Happy pup. Worth it.
My dog loves this thing. It takes hardly any effort to launch the ball. Flick of the wrist kinda thing. The squeaky ball is her favorite but unfortunately you can't buy this brand of ball separately. It says compatible with any 2.5 inch ball but that's not true. We have a ton of Penn tennis balls and they are just slightly too big for this launcher. You can do it but it's a huge pain and hard to throw. Another issue is that when we first got it the handle didn't want to stay screwed together. After the first day of use and having to rescrew it together multiple times, the issue seems to have corrected itself? Either way, for the price with the comfy handle, very low effort throwing for big pay off, two balls included and the crazy excitement from my dog anytime we get near the thing. It's definitely worth it. I like it much better than the chuck it and stone random cheap brand we used to have. I'm going to try one of the balls recommended in the product pictures. I'll update if they work out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
J
Verified Purchase
Jennifer
Lake Worth, US
★★★★★ 5
Ergonomic and well made.
I have at least a half dozen ball launchers and this is the nicest one. As efficient as any of them and it feels the nicest in my hand. As long as you tighten the handle when you put it together, it will serve your puppy well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
J
Verified Purchase
JD.
Port Orchard, US
★★★★★ 1
Ball Launcher Poorly Made and Hard To Use, Save Your Money
This launcher was too long and thin to pick up the ball from the ground, I had to use my other hand to press down on it. The screw on handle was heavy and kept coming loose no matter how tight I made it, strain on the wrist to use. The ball holder end would often not let go of the ball when trying to launch it. I ended up putting it in the trash. I had two shorter Chuckit launchers that are much better made, will stick with them. I don't recommend this to anyone, save your money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
J
Verified Purchase
Jonathan
San Leandro, US
★★★★★ 5
Go Get It!
GoSports does it again. Our family has a lot of GoSports products. It brings us comfort knowing when we order a product from them the quality is going to be great. The Ball Launcher is excellent. Our lab loves the soft tennis balls that come with it, preferring them over the harder rubber ones from other brands. The launcher itself is thoughtfully designed, well-made, and comfortable to hold. Our new go-to for daily fetch sessions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2025
S
Verified Purchase
Stephanie S.
Carnegie, US
★★★★★ 2
Gave it a Try
I have always used the Chuck It ball and ball launcher. I thought I would try this since the price was better. There is definitely a reason it is priced lower. The handle on this one twists on and constantly comes undone when you throw, and it does not launch nearly as well. I would not order this product again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026

recommand products

Bentley Seeds Pepper (Spicy Salsa Blend)
25.64
Hibiscus sabdariffa Seeds BULK: 700 Seeds (1 ounce), OG
20.17
Grow Salsa Garden Kit – The Old Farmer's Almanac Store
28.56
All-in-One Salsa Garden Variety Seed Pack
22.83
Garden Salsa Hybrid Hot Pepper Seeds
20.52