Super S Liquid Fertilizer
$30
42 fl. oz. pouch + hose-end sprayer. Covers up to 3,000 sq. ft.




Premium liquid lawn fertilizer — sulfur
Address high pH and sulfur deficiencies in your soil while improving resilience and nutrient uptake for your lawn.
Wondering what your lawn really needs?
Let's create a custom plan for you.
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




Your lawn's pH problem, handled
Super S Liquid Fertilizer is a 15-0-4 liquid sulfur lawn fertilizer that helps with 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
- For use in high pH soil to improve 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%): Helps shift high soil pH so your lawn can easily absorb nutrients.
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.
- Connect the sprayer to your garden hose and attach the fertilizer pouch.
- Turn on the water and walk your lawn at a steady pace, applying evenly.
- Keep going until the pouch is empty, about 10 to 15 minutes. One pouch covers up to 3,000 sq ft.
- Once dry, your lawn is ready to walk on again.
- Reapply every 4 to 6 weeks from spring through fall. Keep the sprayer for future applications.

Learn more from The Shed
Customer reviews
4.3
Based on 18 reviews
Reviews with media
Popular topics
Need more fertilizer in the
Need more fertilizer in the lawn package plan
Was this review helpful?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.
Was this review helpful?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.
Was this review helpful?Good stuff!
Brightened up grass and promoted growth during very hot months. Good stuff!
Was this review helpful?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.
Was this review helpful?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 Sunday organic fertilizer on it. Now we have a small patch of lush, green grass/clover and hope for the future of our lawn.
Was this review helpful?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
Was this review helpful?Great
This product was great it really made a difference in my lawn
Was this review helpful?Good and easy to use
Simple to use and helped my lawn.
Was this review helpful?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!
Was this review helpful?
Questions & answers
2 questions
Question: At what temperature can I use this product?
Louisa D.
Optimal temperatures are between 50F to 85F for the fertilizer to be most effective.
Question: Do I use this on a dry or wet lawn? Also, can it prior to rain or watering?
Louisa D.
We suggest waiting until rain is not in the forecast for 24 hours. You'll want to give the nutrients enough time to absorb before the rain hits.
