phosphorus and potassium fertilizer for plants Ultimate 3-18-18 NPK- Lawn Food Liquid Fertilizer- Easy to Use Concentrated Spray- Any Grass Type- Summer & Fall Nutrients- Simple Lawn Solutions -
SKU: 89201210528
phosphorus and potassium fertilizer for plants

phosphorus and potassium fertilizer for plants Ultimate 3-18-18 NPK- Lawn Food Liquid Fertilizer- Easy to Use Concentrated Spray- Any Grass Type- Summer & Fall Nutrients- Simple Lawn Solutions -

Sale price$22.09 Regular price$24.54
Save 10%

Pay in installments of $6.13 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

phosphorus and potassium fertilizer for plants Ultimate 3-18-18 NPK- Lawn Food Liquid Fertilizer- Easy to Use Concentrated Spray- Any Grass Type- Summer & Fall Nutrients- Simple Lawn Solutions -Best fertilizer for fall and for new lawns! 3 18 18 Lawn Food contains the essential macronutrients to help establish a strong resilient lawn by supporting turf and root vigor. High Phosphorus and Potassium lawn fertilizer is great for establishing a new lawn, or supporting plant hardiness as fall fertilizer before winter dormancy. Apply this lawn fertilizer with low nitrogen, high phosphorus and potassium as a fall fertilizer. Use 3 18 18 Lawn Food

Best fertilizer for fall and for new lawns!

3-18-18 Lawn Food contains the essential macronutrients to help establish a strong resilient lawn by supporting turf and root vigor. High Phosphorus and Potassium lawn fertilizer is great for establishing a new lawn, or supporting plant hardiness as fall fertilizer before winter dormancy.

Apply this lawn fertilizer with low nitrogen, high phosphorus and potassium as a fall fertilizer. Use 3-18-18 Lawn Food as a starter fertilizer to establish a new lawn, in combination with our Root Hume, for cool and warm-season grass. 

Who Should Use This Lawn Fertilizer? 3-18-18 Lawn Food is best to be used...

  • When establishing your lawn with sod
  • When establishing your lawn with seed
  • If your lawn is deficient in Phosphorus or Potassium

Whether you are looking to maintain your current lawn, correct nutrient deficiencies, or you are starting your lawn completely from scratch, our customer care team and products have you covered! Contact our team for a custom lawn plan tailored to your lawn’s needs!

Nutrients

Nitrogen 3% is the mineral element used in the greatest quantity by turf. Nitrogen is a component of many of the biochemical constituents of plants, including chlorophyll, amino acids, proteins, and enzymes. The addition of Nitrogen fertilizer can encourage ideal conditions for a dense attractive lawn.

Phosphorus 18% The proper level of phosphorus in your grass is essential for root and early plant development. Its primary role is in the storage and transfer of energy. Without sufficient P, normal growth and development cannot occur. Phosphorus fertilizer effects on turf are usually more subtle and, while not as readily visible, are still very important.

Potassium 18% is involved in carbohydrate formation, photosynthesis, enzyme activation, and the formation of proteins. Potassium fertilizer plays a role in photosynthesis, and carbohydrate production is reduced when K is deficient. Potassium can enhance the plant’s endurance to stress if a deficiency is present.

Features
  • Nitrogen: Encourages a thicker, greener lawn
  • Phosphorus: Provides nutrients for resilient turf and strong, deep roots
  • Potassium: For plant hardiness and to support essential plant function
  • NPK Fertilizer: Treat Nitrogen, Phosphorus, and Potassium deficiencies
  • Can be Used on All Grass Types: Lawn fertilizer for Bermudagrass, Saint Augustine, Zoysia, Centipedegrass, Bahia, Kentucky Bluegrass, Perennial Ryegrass, Tall Fescue/Fine Fescue
  • Application: Apply in a hose-end sprayer, spray tank, sprayable grass fertilizer applied in minutes
  • Lawn Coverage: 2.5 Gallon fertilizer bottle covers 32,000 Square Feet
  • Proudly Made in the USA: Fertilizer manufactured in the US by a family-owned business
Info 

For best results, water the lawn for 20 minutes within 24 hours of application. Water is essential for maintaining your lawn, and your lawn should receive 1-2 inches of water per week. Fertilizer will not treat a lawn that is suffering from disease, pests, weed infestations, or drought, and these conditions should be treated separately.

Not recommended to apply this product during drought, or drought-like conditions.

This fertilizer contains Phosphorus and may not be used for lawn maintenance on turf in Maryland, Michigan, New Jersey, New York, and Virginia except when 1) Providing nutrients to specific soils and target vegetation as determined to be necessary for accordance with a soil test that was conducted by a laboratory* performed no more than 3 years before the application. 2) Establishing vegetation for the first time, such as after land disturbance, provided the application is conducted in accordance with the recommended application rates established by the state. 3) Re-establishing or repairing the turf area. *In Maryland, the soil testing laboratory must be identified under Section 8-803.7 of the Agriculture Article, Annotated Code of Maryland.

Shipping

Notice: We are temporarily unable to fulfill our products in the following states:

  • Alaska
  • Hawaii
  • Puerto Rico
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: 89201210528

Discover Niche Categories That Outsell phosphorus and potassium fertilizer for plants

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 1084 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
P
Verified Purchase
Paul T
Port Orchard, US
★★★★★ 5
Pure Green Vitality
Size: 16 Ounce (Pack of 1)
This Micro Ingredients Spirulina has become a staple in my morning routine for a clean, natural energy boost. I love that it’s 100% organic and filler-free, providing a dense source of vegan protein and vitamins without any gritty texture. It mixes surprisingly well into smoothies, and I’ve noticed a genuine improvement in my overall stamina since I started using it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2025
N
Verified Purchase
NoMIFish
Chelsea, US
★★★★★ 5
So good, and good for you
Size: 16 Ounce (Pack of 1)
I blend mine with 4oz Tart Cherry juice and water. Yes...it smells bad...but it so good, and good for me too! I will be updating to a subscription order. It being a powerful antioxidant, good for your heart is all it took for me to add this to my routine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
M
Verified Purchase
MJ
Houston, US
★★★★★ 5
Great Product
Size: 16 Ounce (Pack of 1)
Great feed for our sea monkeys!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
T
Verified Purchase
thom lask
Pawtucket, US
★★★★★ 4
Acquired taste
Size: 16 Ounce (Pack of 1)
Tastes worse than Chlorella. I don't feel any tangible benefits from taking it but also didn't notice anything from Chlorella either. This has a more algae pond water type taste than Chlorella which has a slight umami flavor that I find more tolerable. I like mixing it into a Green Giant drink but it's really just Cocoa, Spirulina or Chlorella, and whey or plant protein. I like the green notes that counterbalance the sweetness. But I prefer Chlorella's taste to this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026
C
Verified Purchase
Corey A. Welch
San Leandro, US
★★★★★ 5
High Quality Spirulina at a Great Value
Size: 16 Ounce (Pack of 1)
I’ve been taking spirulina for a few years now, and Micro Ingredients Organic Spirulina Powder has quickly become one of my favorites. The quality is excellent, rich color, fine texture, and no unpleasant odor, which is a good sign of freshness. I really appreciate that it’s organic, non-GMO, gluten-free, and contains no additives. It mixes well into smoothies and juices, and I love that it’s packed with plant-based protein, chlorophyll, and essential vitamins and minerals. For the price and the purity, this is an amazing value. I’ll definitely keep buying it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 6, 2025

recommand products