30% off lawn plans & free shipping!

Code: YARDSALE

Super S Liquid Fertilizer

$30

42 fl. oz. pouch + hose-end sprayer. Covers up to 3,000 sq. ft.

Sunday Super S liquid sulfur fertilizer for lawn pouch with hose-end sprayer on green grassSuper S Liquid Fertilizer Hosedata sheetdata sheet

Premium liquid lawn fertilizer — sulfur

Address high pH and sulfur deficiencies in your soil while improving resilience and nutrient uptake for your lawn.

Shipping box

Free shipping! Ships in 1-2 business days

$30

My Yard Plan

Wondering what your lawn really needs?

Let's create a custom plan for you.

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

    Sunday Super S liquid sulfur fertilizer for lawn pouch with hose-end sprayer on green grassSuper S Liquid Fertilizer Hosedata sheetdata sheet

    Your lawn's pH problem, handled

    Super S Liquid Fertilizer is a 15-0-4 liquid sulfur lawn fertilizer that corrects high pH and sulfur deficiency. Iron deepens your green, sugar beet extract handles stress recovery. Works on all grass types, hooks to your hose. Try a Sunday Soil Test Kit or a Custom Lawn Plan.

    What makes Super S Liquid Fertilizer different
    • 15-0-4 NPK with sulfur and iron in one step
    • Corrects high pH soil for better nutrient uptake
    • Iron delivers deep, rich green color fast
    • Hose-on application, done in 10 to 15 minutes
    • Works on all lawn and grass types
    • Made without pesticides
    Ingredients

    Sulfur (2%): Lowers high soil pH so your lawn can absorb nutrients. Ideal range is 6.0 to 7.0, and sulfur corrects anything above 7.5.

    Iron: Delivers deep green color without excess growth, so your lawn looks thick and rich even during hot stretches.

    Sugar beet extract: Helps grass manage heat stress and hold onto moisture. A Sunday original you won't find in basic sulfur products.

    How to use

    Apply early morning or evening when your lawn is hydrated. Avoid drought-stressed or heat-damaged lawns.

    1. Connect the sprayer to your garden hose and attach the fertilizer pouch.
    2. Turn on the water and walk your lawn at a steady pace, applying evenly.
    3. Keep going until the pouch is empty, about 10 to 15 minutes for up to 3,000 sq ft.
    4. Once dry, your lawn is ready to walk on again.
    5. Reapply every 4 to 6 weeks from spring through fall. Keep the sprayer for future applications.

    What does sulfur do for my lawn?

    Super S Liquid Fertilizer uses 2% sulfur to lower high soil pH so your lawn absorbs nutrients more effectively.

    When pH rises above 7.5, grass can't take in nitrogen and iron even when they're present. Super S corrects that.

    How do I know if my lawn needs sulfur?

    Super S is designed for lawns with high pH or low sulfur. Signs include yellowing new growth and poor response to regular fertilizer.

    A soil test confirms it. If your pH is above 7.0, sulfur helps bring it to the ideal 6.0 to 7.0 range.

    Can I apply Super S to a newly seeded lawn?

    Super S Liquid Fertilizer works best on established lawns. Wait until new grass has been mowed at least twice before applying.

    This gives young roots time to develop before adding more nutrients.

    What happens if it rains after I apply Super S?

    Super S absorbs into soil quickly once applied. Light rain after drying is fine and can help move nutrients to roots.

    If heavy rain is expected within a few hours, wait for a drier window.

    Is liquid sulfur fertilizer as effective as granular?

    Super S Liquid Fertilizer delivers sulfur, iron, and sugar beet extract in a fast-absorbing liquid that spreads evenly without a broadcast spreader.

    Granular sulfur takes longer to break down. Super S covers 3,000 sq ft in 10 to 15 minutes.

    How is Super S different from other Sunday fertilizers?

    Super S targets high pH and sulfur deficiency with 2% sulfur, iron for greening, and sugar beet extract for stress recovery.

    Grass Powerhouse is for general feeding. Choose Super S when soil tests show high pH or low sulfur.

    When is it safe for people and pets to go on my lawn after applying?

    Our ingredients break down quickly and don’t persist in the environment. After our products dry, you can get back to using your lawn!

    Trending items

    Sunday liquid lawn fertilizer pouches side by side on a lawn

    Customer reviews

    Based on 18 reviews!
    Popular topics
    Michael
    Verified Buyer
    LocationTucson Az
    Need more fertilizer in the

    Need more fertilizer in the lawn package plan

    Published date
    10/21/23
    Was this review helpful?
    6
    0
    Travis
    Verified Buyer
    LocationMid Michigan
    Michigan Lawn

    Seemed to help thicken some areas of my yard that needed a boost before the fall feed. It wasn't a miracle product but did a decent enough job.

    Published date
    10/23/23
    Was this review helpful?
    2
    0
    David
    Verified Buyer
    LocationBoston, MA
    Good, easy to use.

    Good. Easy to use. made my lawn happy. we hit a really hot patch of the summer so might not have popped as much as desired but think more due to the weather.

    Published date
    10/20/23
    Was this review helpful?
    0
    0
    Kevin
    Verified Buyer
    LocationAshburn, VA
    Good stuff!

    Brightened up grass and promoted growth during very hot months. Good stuff!

    Published date
    10/20/23
    Was this review helpful?
    0
    0
    Christina
    Verified Buyer
    LocationMonroe, Wa. 98272
    Very pleased

    Was happy with the ease of use and how to use of this. No special tools required and a nice turn around from brown to green. Will buy again.

    Published date
    10/20/23
    Was this review helpful?
    0
    0
    Angela
    Verified Buyer
    LocationUtah
    Works great

    We have had a hard time keeping grass in our backyard without resorting to chemical fertilizers, which we don't want to use. Every summer the grass turns brown and the weeds take over and we lose more grass. This year I reseeded a small patch of our lawn with a mix of grass and clover and used Sunda...

    Published date
    10/20/23
    Was this review helpful?
    1
    0
    Peter
    Verified Buyer
    Seemed to get good growth

    Seemed to get good growth but with all the rain we had this summer it is tough to tell. Will use again so I can compare the results

    Published date
    10/20/23
    Was this review helpful?
    0
    0
    Joseph
    Verified Buyer
    LocationEast Meadow NY
    Great

    This product was great it really made a difference in my lawn

    Published date
    10/20/23
    Was this review helpful?
    1
    0
    Marc
    Verified Buyer
    LocationAlbany, New York
    Good and easy to use

    Simple to use and helped my lawn.

    Published date
    10/20/23
    Was this review helpful?
    0
    0
    Marcy
    Verified Buyer
    LocationDesert Aire, Wa.
    Amazing!

    The fertilizer really pulled my glass out of a funk! I really like how easy it is to apply and how safe it is for the environment!

    Published date
    10/20/23
    Was this review helpful?
    0
    0

    $30