Only 3 days left | 20% off lawn plans

Code: STARTNOW

Grass Machine Liquid Lawn Fertilizer

42 fl. oz. pouch + hose-end sprayer

LAWN PLAN EXCLUSIVE

Grass Machine Liquid FertilizerGrass Machine Fertilizer GrassPouch Application Hose End SprayerSunday Liquid Lawn Fertilizer Use TipsGrass Machine Liquid Fertilizer ApplicationGrass Machine Liquid Lawn Fertilizer Data SheetGrass Machine Liquid Lawn Fertilizer Data SheetGrass Machine Liquid Lawn Fertilizer Data Sheet

Liquid fertilizer for grass growth

An ideal combination of nitrogen, iron, seaweed, and potassium to turn your lawn into a grass-growing machine.

sunday-guarantee-badge

We're committed to making sure Sunday works for you and your home. Need a replacement? Or help troubleshooting an issue? Our experts are here for you. Learn more

Related products

    LAWN PLAN EXCLUSIVE

    Grass Machine Liquid FertilizerGrass Machine Fertilizer GrassPouch Application Hose End SprayerSunday Liquid Lawn Fertilizer Use TipsGrass Machine Liquid Fertilizer ApplicationGrass Machine Liquid Lawn Fertilizer Data SheetGrass Machine Liquid Lawn Fertilizer Data SheetGrass Machine Liquid Lawn Fertilizer Data Sheet

    Greener growth with Grass Machine

    Exclusively available only in Sunday Lawn Plans

    Grass Machine is a specially formulated lawn fertilizer designed to boost growth, green up, and enhance the resilience of your grass.

    This powerful formula features a blend of nitrogen for rapid growth, iron for deep greening, and seaweed and potassium for increased grass resilience. Perfect for spring and throughout the growing season, Grass Machine ensures your lawn not only grows faster but also develops a healthier, more vibrant appearance. It's the ideal solution for anyone looking to transform their lawn into a lush, green oasis.

    Consciously formulated without pesticides, Sunday champions planet-friendly solutions for your lawn's unique environmental challenges.

    Product Features:

    • 15-0-3 NPK (Nitrogen-Phosphorus-Potassium) liquid lawn fertilizer
    • Formulated to support growth, greening, and resilience in spring and throughout the growing season
    • Ideal for early-season use, and regular lawn maintenance and feeding
    • Nitrogen for growth, iron for greening, potassium, and seaweed for resilience
    • Made for all types of grass and lawns
    • Zero pesticides
    • Eco-conscious formulation for a greener, healthier lawn
    • User-friendly hose-on application
    • Covers up to 3,000 sq. ft.
    • Includes liquid fertilizer in flexible reduced plastic packaging and a custom-engineered universal hose-end sprayer

    Ingredients:

    • Nitrogen: For strong and healthy grass growth
    • Iron: For deep greening of lawns
    • Potassium: Aids in water management and grass resilience
    • Seaweed: Supports grass resilience and greening

    Instructions:

    For best results, apply early morning or evening, and make sure your lawn is adequately hydrated. Avoid use on drought-affected or heat-stressed lawns.

    1. Connect the universal sprayer to your hose and the fertilizer pouch. This sprayer is designed for the optimal mix of water and nutrients.
    2. Apply the fertilizer across your lawn until the pouch is empty, which should take about 10-15 minutes. Once the fertilizer dries, you can get back out on your grass.
    3. Reapply every 4-6 weeks spring through fall. Keep the sprayer for future applications.

    How do I use with other Sunday products?

    If using other Sunday products, let liquid fertilizers dry completely before applying anything else to the lawn. For best results, use lawn fertilizer in combination with weed control and grass seed. This will help you feed properly, reduce weeds, and introduce better grasses to your lawn.

    How much should I apply based on my yard size?

    1,000–1,500 sq. ft.: 1/2 pouch

    1,500–3,000 sq. ft.: 1 pouch

    3,000–6,000 sq. ft.: 2 pouches

    How does fertilizer help my grass? How is Sunday liquid fertilizer different?

    Grass needs nutrients to thrive. Fertilizer provides these essential nutrients and enhances growth, color, and resilience. Sunday liquid fertilizers offer rapid absorption for quicker results and uniquely enrich the soil while nourishing your lawn—all without pesticides for a healthier yard.

    How much lawn fertilizer will I need?

    For each treatment: Each fertilizer pouch covers 3,000 sq. ft. for one treatment. The number of pouches you receive for each application will depend on your lawn size.

    For the growing season: We’ll take care of this for you! Follow your Sunday Custom Plan for how many times per year to apply.

    When is the best time to apply fertilizer to my lawn?

    For optimal results, fertilize your lawn when grass is actively growing. Apply early in the morning or the evening when temperatures are between 50 to 85 degrees F to a well-hydrated lawn.

    For custom lawn plan subscribers: Head over to your account’s My Plan Page to see when to apply your custom nutrient pouches.

    This product is approved for use in all states.

    Trending items

    Sun & Shade Seed + Feed

    Sun & Shade Seed + Feed

    $32

    starstarstarstarstar

    (4)

    Shipping box

    Free Shipping!

    10lb bag of Heat Tolerant Seed + Feed

    Heat Tolerant Seed + Feed, 10lb

    $30

    Shipping box

    Free Shipping!

    Emerald Green Arborvitae Privacy Screen

    Emerald Green Arborvitae

    $68

    Shipping box

    Free Shipping!

    Sunday liquid lawn fertilizer pouches side by side on a lawn

    Liquid Lawn Fertilizer Instructions

    Healthy soil grows healthy grass. Sunday's liquid fertilizers deliver nutrients fast, right when your lawn needs it. Here's how to put them to work.

    Read article

    Customer reviews

    Based on 10595 reviews!
    Popular topics
    Show more
    Michael S.
    Verified Reviewer
    LocationPA
    Great. Magnificent

    I was very skeptical of using this product. I am shocked and surprised how well Sunday did for my lawn. After many times of making my lawn look good. There are no words to express how well my lawn looks. This year

    Published date
    04/23/26
    Was this review helpful?
    1
    0
    Fredy
    Verified Reviewer
    LocationIndiana
    Not happy with results.

    Not happy with the results with the Weed & Green pre-emergent. New Weeds all over my lawn. Would not purchase again.

    Published date
    04/11/26
    Was this review helpful?
    11
    1
    Ryan
    Verified Reviewer
    LocationColorado
    Full solution lawn care

    I have been a Sunday user for a number of years and am thrilled at the transformation my lawn has made (before and after photos about a year into my Sunday subscription attached). The products ship straight to my door and the instructions and application dates are clear. Customer service and their v...

    Comments by Store Owner on Review by Sunday on Sat Apr 11 2026
    Sunday
    Hello Ryan! We are delighted to hear about the amazing results you have achieved with Sunday products. We look forward to being your partner on this lawn care journey for many more years to come!
    Published date
    04/09/26
    Was this review helpful?
    0
    0
    Nicole
    Verified Reviewer
    LocationCO
    We grew back grass in time for our wedding

    We planned a post-wedding party for our backyard last year. Couldn't imagine we'd be able to grow grass in time. Sunday not only helped us grow back our lawn but our dog was sooo happy too. Cannot recommend the custom plan plus dog lawn grass seed and lawn aid enough.

    Comments by Store Owner on Review by Sunday on Sat Apr 11 2026
    Sunday
    Hi Nicole! We are thrilled to hear that our custom plan and dog lawn grass seed worked wonders for your backyard party. We look forward to helping you with all your lawn needs in the future!
    Published date
    04/09/26
    Was this review helpful?
    0
    0
    Mike S.
    Verified Reviewer
    LocationCO
    Impressive.

    Very impressed so far! I used the weed and green pre emergent (***www.getsunday.***/shop/lawn-care/weed-green-pre-emergent-and-post-emergent-weed-killer-2-pack) was shocked to see how quickly it started working without all the harsh chemicals! My dog was back on the lawn within 24 hours. So far so g...

    Published date
    04/06/26
    Was this review helpful?
    1
    0
    John
    Verified Reviewer
    LocationColorado
    Green grass without a lame new hobby

    Came across Sunday on advice from a friend. I'd always wanted to be one of those people with lush green grass but wasn't looking for another hobby to take my time and money. Sunday fits the bill: just tell me what to do and when to do it. My lawn is now up there with the best on the street and I get...

    Published date
    03/25/26
    Was this review helpful?
    4
    1
    David L.
    Verified Reviewer
    LocationCO
    Love how easy Sunday is

    Wow—Sunday really made my lawn look so much better. Lawn is thick and very green. It’s super easy to use, and I’ve been really happy with the subscription.

    Published date
    03/25/26
    Was this review helpful?
    0
    0
    Larry
    Verified Reviewer
    LocationColorado
    Three years in

    Three years in and our lawn is beautiful. So much easier than everything I tired before. The tree fertilizer also did wonders for my cherry tree.

    Published date
    03/25/26
    Was this review helpful?
    0
    0
    Mike P.
    Verified Reviewer
    Thick Lawn grown in 85 % Sand !

    We never could get grass to grow on our southwest front hill and our grass up front was always thin ! The back yard was always patchy and grass would never grow behind our pool ! We started using Sunday roughly 4 years ago and Wow ! nice thick lawn up front and a full lawn out back and in 85% sand t...

    Published date
    01/25/26
    Was this review helpful?
    8
    1
    Chris
    Verified Reviewer
    LocationVan Nuys, CA.
    Great Results

    I followed the recommended steps. After the first seeding, the ground was unreceptive so I added some topper cover/fertilizer. Aside from that, all the recommended steps have led to a beautiful lawn.

    Published date
    01/11/26
    Was this review helpful?
    1
    2