Lawn Fertilizer
"I have purchased Lawn Synergy before and I expected this product to perform the same. This emerald 10-0-20 had no effect on my lawn . It did not get any greener and I did I notice any weed killing."
Emerald 10-0-20 Lawn Fertilizer
Get a Darker, Stronger Lawn Without the Risk.
A premium slow-release fertilizer designed to deliver deep green color, stronger roots, and better stress resistance without burning your grass.
$39.99
Make It Easy- Auto Delivery Program
| Key | Value |
|---|---|
| Lawn Types | Tall fescue, Centipede, Bermuda, Zoysia, St. augustine, Kentucky bluegrass, Ryegrass |
| Special Features | 45% Slow-release Nitrogen (Accublue60) and NuTrace (every granule is coated with micronutrients) |
| Application Rate | 4-5 lbs. per 1,000 sq. ft. every six weeks |
| Time to Apply | Spring, Summer, Fall |
| Delivery System | Granules |
| Brand | Lawn Synergy |
| For Use In | Turf Grass |
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Choose OptionsWHY CHOOSE
Stronger greener lawns with balanced nutrient formula
Deep Color
Provides rich dark green color without triggering excessive top growth or uneven lawn appearance.
Steady Feeding
Slow release nitrogen feeds lawn evenly for weeks ensuring consistent growth and longer lasting results.
Root Strength
High potassium builds deeper stronger roots improving resistance to heat drought and everyday lawn stress.
Micro Boost
Contains micronutrients, iron, and amino acids to enhance nutrient absorption, enhances dark green color, and support healthier soil conditions.
Premium Upgrade
Stronger Greener Lawns Without Summer Stress
Protect your lawn from heat while keeping a deep green color with Emerald 10-0-20. Built with 45% slow-release nitrogen and high potassium for lasting performance.
This Is Right For You If:
- You want dark green color without fast growth
- You need long-lasting, steady feeding
- You want stronger roots and stress resistance
- You have phosphorus-sensitive lawns like Centipede
Best Timing
When to Use
Apply every 6 weeks during the growing season for stronger color, healthier roots, and consistent lawn performance.
Cool Season Lawns
Best for Tall Fescue and Kentucky Bluegrass from May through August.
Warm Season Lawns
Perfect for going into the cooler months. During the growing months, we recommend Almighty for warm season lawns.
Use Emerald For:
- Feeding stressed or weak lawns
- Improving lawn color and density
- Strengthening roots during summer heat
- Supporting long-lasting turf health
How it works
Apply Easily For Fast Greener Lawn Results
This section shows simple steps to apply correctly, avoid mistakes, and achieve fast, visible lawn results.
Real Results
Real Homeowners Seeing Faster Greener Results
“I applied this once and saw greener grass within a week. Super easy to use, and my lawn looks thicker and healthier than ever.”
“I had a dull and pale yellow lawn for a while. I tried everything. Finally your product worked and my lawn is darker green, becoming much thicker. I couldn't be happier!”
“Super easy to apply. I just used the bag and within a week, I noticed a difference. It's been 4 weeks now and my neighbors are asking me what I did.”
Got Questions?
Frequently Asked.
Everything you need to know before you start your daily routine.
Is this lawn fertilizer safe for my lawn?
This blend of lawn fertilizer is ideal for all lawn types. It is also a great stress blend during the summer months for all lawn types. It contains slow-release nitrogen which also will prevent nitrogen burn.
How long will it take for the fertilizer to work?
Once your application is applied and watered in, expect 7-14 days to notice a difference. As the nutrients begin to work, you will notice the lawn growing and darkening up in color.
Can I use this on St. Augustine or Centipede lawns?
Yes. Emerald is phosphorus-free and safe for both. For Centipede lawns, alternate with a lower-nitrogen product like NutriGreen 0‑0‑4 to avoid over-fertilization.
Will it stain my concrete or patio?
Fertilizer with iron can stain hard surfaces, so always sweep/blow stray granules off immediately. Do not wash it off with water.
How long does it feed the lawn?
Emerald feeds slowly and steadily for up to 6-8 weeks thanks to the 45% slow-release nitrogen. We recommend re-applying fertilizer at 6 weeks to allow some overlap.
Overall rating: 4.549223 / 5 from 193 reviews.
AI Generated Review Summary
Emerald 10-0-20 Lawn Fertilizer offers a dark green color and healthy lawn with its slow-release nitrogen and potassium. Customers appreciate its coverage and results, though opinions on color and effectiveness vary. It's suitable for various grass types and requires careful application to avoid staining.
Summary topics
- Product Results: 25%
- Lawn Appearance: 10%
- Lawn Health: 22%
- Lawn Coverage: 4%
- Lawn Color: 5%
Review topics: [].
Review highlights
- "The lawn is a really nice dark green color." —
- "Grass looks really good will buy again." —
- "My lawn quickly came back to life lush and green." —
Reviews
After a heavy winter lawn
"After a heavy winter lawn starting to look happy again!"
My TTTF changed to a
"My TTTF changed to a dark green color within a week. Healthiest it's looked all year!"
progress
"Since I got a soil sample along with the recommendations and using your products my lawn is now greener and thicker than it's ever been and i have lived in my house for 25 years ."
Phenomenal product! Crazy stuff and
"Phenomenal product! Crazy stuff and my neighbors are all wanting to know our secret due to how quick it transformed our yard"
Emerald green fescue grass
"Even during this drought this fertilizer along with watering has made my grass grow and look outstanding!"
Not Pleased
"My lawn is very spotty. Some places are dark green, others don't show any indication of being fertilized."
Our grass is looking better
"Our grass is looking better and better. Love your products at 82 Years old. Have done lawns for 64 years but you are the best!!"
Definitely notice the lawn being
"Definitely notice the lawn being healthy green after application. two weeks later, the lawn still beautiful, vibrant and healthy looking."
Emerald
"I can't believe how fast and full. my grass looks from just 1 treatment."
Q&A
- my lawn in the summer gets sun all day long will this work on my lawn?
- This is a great fertilizer choice to use of cool season grass types over the summer season.
- Does it work on zenith zoysia grass
- 10-0-20 is a great product to use on Zoysia sod as a winterizer fertilizer. During the summer growing season, I would recommend using the 20-0-10 Almighty for zoysia grass.
- How long before / after mowing should Emerald be applied?
- Emerald can be applied right after mowing. If you are planning to apply before mowing, make sure the product is watered in very well first and then mow once the lawn is dry.
- Hello, Does this product burn the grass?
- This product can burn the grass if it is over applied. We recommend applying this product at 4-5 lbs. per 1000 sq. ft. Space out all fertilizer applications by 6-8 weeks.
- Hi, has anyone used this fertilizer Emerald 10-0-20 on their St. Augustine lawn in the Dallas, TX area.
- Yes, this fertilizer is a great choice for your grass type in the fall.
Professional-Grade Lawn Care Made Simple
Feed your lawn with consistent, high-quality nutrients designed for real results without the guesswork.
