SKU: 8914830542
plant starter fertilizer

plant starter fertilizer Seedlingers Root Boost | Plant Starter & Root Stimulator

Sale price$20.54 Regular price$22.82
Save 10%

Pay in installments of $5.71 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

plant starter fertilizer Seedlingers Root Boost | Plant Starter & Root StimulatorSEEDLINGERS ROOT BOOST Liquid Root Stimulator & Plant Starter Fertilizer Stronger roots. Healthier starts. Bigger success. SEEDLINGERS ROOT BOOST is a high performance plant starter fertilizer crafted to stimulate root development, improve soil structure, and establish a strong foundation for plant success. This energy rich formulacombines both traditional and organic based ingredientslike compost tea, calcium, and phosphorousto kickstart microbial

SEEDLINGERS® ROOT BOOST® – Liquid Root Stimulator & Plant Starter Fertilizer

Stronger roots. Healthier starts. Bigger success.
SEEDLINGERS® ROOT BOOST® is a high-performance plant starter fertilizer crafted to stimulate root development, improve soil structure, and establish a strong foundation for plant success. This energy-rich formulacombines both traditional and organic-based ingredients—like compost tea, calcium, and phosphorous—to kickstart microbial life, enhance early-stage growth, and increase your plant’s natural stress tolerance.

Perfect for seedlings, transplants, or any new plantings, Root Boost promotes dense root systems and sets your plants up for long-term health—indoors or out.


🌿 Key Benefits

  • Promotes strong root development and early plant growth

  • Improves soil health with organic-based ingredients

  • Builds microbial life for long-term plant success

  • Enhances stress tolerance during early growth stages

  • Ideal for seedlings, transplants, and new plantings


Great For

  • 🌱 Root growth stimulant

  • 🌼 Plant starter fertilizer

  • 🌿 Transplant root enhancer

  • 🦠 Soil microbial booster

  • 🌾 Early growth plant food


🧪 Ingredients

  • Calcium Nitrate

  • Phosphoric Acid

  • Monopotassium Phosphate


💧 Directions for Use

Shake well before using.
If refilling a Seedlingers Root Boost® hose-end bottle, follow those instructions.

For garden sprayers:

  • Mix 2 oz of Root Boost® per 1 gallon of water (1:64 ratio)

  • Apply directly to the soil around the plant base

  • Application rate: 1 gallon of mixture per 1,000 sq. ft.

  • Repeat every 7–14 days, or as needed based on moisture and temperature


📏 Sizes & Coverage

Size Coverage Area Form
Pint 8,000 sq. ft. Liquid
Quart 16,000 sq. ft. Liquid
Gallon 64,000 sq. ft. Liquid
2.5 Gallon 3.5 acres Liquid
5 Gallon 7 acres Liquid

The Foundation of Healthy Plants Starts Below the Surface

Give your seedlings and new plants the strong start they deserve.
SEEDLINGERS® ROOT BOOST® enhances root development, soil vitality, and plant performance—one application at a time.

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: 8914830542

Discover Niche Categories That Outsell plant starter fertilizer

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 10 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Milissa
West Palm Beach, US
★★★★★ 5
Great starter for the best price
Great price and same exact part as the ones twice the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 30, 2025
R
Verified Purchase
ray whit
Lowell, US
★★★★★ 5
Water impeller Johnson
Size: 85-300 HP
Worked perfect for my 1988 Johnson 88 spl already been on the water, no issues.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
B
Verified Purchase
Brent Fuhrmann
Fort Morgan, US
★★★★★ 5
Great product
Size: 75-250 HP
Great product would purchase again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
Y
Verified Purchase
YouDon'tKnowMe
Birmingham, US
★★★★★ 5
1991 Evinrude 40 hp
Size: 40-50 HP
2nd time purchasing this item. The 1st one lasted 2 years, but my boat hasn't been used a lot either. The marine mechanic who replaced it for me said it was definitely time to replace it. He said it fits and works just fine. Has good water flow. As for quality and value, I'd say decent. The price is better than an OMC OEM pump. I plan on using my boat more this year, so we'll see how it holds up. I'll get it replaced at the end of the year. Ease of installation, NOT EASY. The lower unit has to be completely removed from the outboard. Some outboard are easier than others and as old as this one is, it's probably easier than some of the newer ones. I've watched a couple of videos on YouTube on how to do it and I might try to do it myself next time. It cost $360 to have it done and that's with me supplying the pump. He said it took him about 1½hours to do the job, but I was charged for 3 hours labor. Probably what the book shows. I'd buy it again and I'll try to do the job myself.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
H
Verified Purchase
Hannah
Massapequa, US
★★★★★ 4
Decent kit. Doesn’t include all parts shown in photos.
Size: 75-250 HP
I purchased this kit to replace the impeller and necessary components on my 2006 Johnson 150HP V6 Outboard. I SPECIFICALLY ordered this kit because it showed the shift shaft seal in the photos, where other kits didn’t not. This kit DID NOT include the shift shaft seal, as pictured in the photos. All the other parts fit well. The o-rings could fit a bit better. The o-ring seal for the impeller housing was a bit of a poor fit and could be made better, but still worked when glued in. Get what you pay for, right? The parts worked and replaced what I needed. Really would’ve liked to change that shift seal while everything was apart.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 21, 2023

recommand products