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7-0-20 Stress Blend is a high potassium, low nitrogen lawn fertilizer to help your turf in and out of stressful situations. From freeze recovery to heat and drought stress survival situations, 7-0-20 Stress Blend is an excellent choice.
Product Description:
Yard Mastery's 7-0-20 Stress Blend made its debut in 2020 with a limited run that summer. The results were so impressive that we wasted no time getting into the hands of all of our customers by making it one of the first year-round production ferts of 2021. It continues to “wow” us today, as even Allyn Hane himself can’t figure out why it delivers the results it does. The color pop that we see from it is truly beyond our expectations.
Stress Blend contains 7% nitrogen, which will feed a stressed lawn but not kick it in the face. A sick or worn-out lawn still needs feeding, and slow-release nitrogen is the healthy way to go.
You will also find a stellar 20% potash in each bag! Potash is awesome for a stressed lawn as it helps with water uptake and retention. Think about when you're sick; you want to stay hydrated first and foremost, and it's the same for the lawn. When it's stressed, it has to stay hydrated, and potash helps with that by keeping cells turgid. (total of water)
Last but not least in any way, 7-0-20 Stress Blend contains a stack of micronutrients lawns need, including magnesium, copper, manganese, molybdenum, and zinc.
This is a great early spring app for warm-season turf as your lawn is waking up slowly. Warm-season lawns always seem to wake slowly, and it's not a good idea to bang them with too much nitrogen when they awaken from winter slumber. Apply Stress Blend again in the fall as the lawn is heading into the winter.
For cool-season turf, this is your go-to late spring and summer fertilizer, hands down. Combine this with a shot of Hydretain, and you will definitely have a much better summer.
All-Natural Bio-Nite™ in Every Bag! Bio-Nite is a bio-solid filler we add to every bag of Stress Blend Fertilizer. Bio-Nite is the same thing as Milorganite, but instead of being sourced in Milwaukee, it comes from South Florida. The results were so impressive that we wasted no time getting into the hands of our customers. Is also what delivers the smell of success in every bag. That smell tells you that the included Bio-Nite is feeding microbes in the soil every time you apply.
Check out the video below for more information:
*Size options and coverage:
Application Information:
Stress Blend Fertilizer can be applied at any time during the growing season on the following grasses:
Coverage |
18 lb bag covers 6,000 square feet 45 lb bag covers 15,000 square feet |
Application Details |
Apply at 3 lbs per 1,000 square feet of lawn area Apply every 30-45 days |
Water-In Instructions |
Apply to a dry lawn, and water into turf within the first 48 hours with 1/4" of rainfall or irrigation Sweep excess off sidewalks and driveways to avoid staining |
Product Resources:
Shipping Costs |
Included for most states within the U.S. NO P.O. Boxes $9.95 for CA, ID, MT, NV, OR, UT, and WA |
State Restrictions
|
Alaska (AK) and Hawaii (HI) |
Stickers
|
Yes, free stickers with this item |
Typical Delivery Time
|
4 - 7 business days |
Product Type |
Granular |
Cancel | Return | Exchange |
All sales are final; no cancellations, returns, or exchanges |
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The product was well packed..Did not get a chance to put it down yet.
Great product. I use it in the heat of summer to supplement the Flagship and it works great.
This product is great, it has single handedly saved my lawn summer after summer.
A nice gentle blend of slow release is just what my slumbering lawn needs as it wakes up slowly to get ready for the long dog days of Florida summer. The order was placed and arrived in no time at all. Kudos to the creators of this blend and the staff that makes the machine run smoothly.
I love this product
Its the best fertilizer to use on my cool season lawn especially after summer stress. thank you
It's very good. The grass got greener and some on the areas that weren't so green got green. Very good result on my grass. So thet mean that the quality of the product is very good.
The soil test kit indicated that my N was good, P was High, and K was low. Two applications of stress blend brought my soil test into optimal range and the grass looks great!
I’ve had two great experiences with this product. 1) Saint Augustine: Lawn looked terrible. One week later begin to see improvement. By the 4th week the lawn went from patchy to flourishing. Owner was even considering applying new grass but this product made a great turnaround. 2) Bermuda (My lawn): I apply once the grass is actively growing out of its dormant stage. Definitely helps wake up and boost lawn to a great spring green up. I also apply this product in summer to help with those drought days.
This product helps me keep my grass thick and super green. I get lots of compliments and inquiries on how I keep my grass so perfectly green. But no sticker in the last shipment, I was bummed…
Product works well
Best fertilizer for my St Augustine grass here in Florida.
If your lawn has been through heat waves, drought, frost, or just general wear-and-tear, 7-0-20 Stress Blend Fertilizer is exactly what it needs to bounce back. I picked this up because I wanted something that wouldn’t push too much top growth but would help my grass recover and stay healthy—and it delivered big time. What I Loved: ✔ Perfect for Stressed Lawns – With low nitrogen (7%) and high potassium (20%), this formula is all about strengthening the lawn rather than forcing growth. My grass was looking dull and tired after a tough season, and within a couple of weeks, it perked up beautifully. ✔ Deep Green “Color Pop” – I was skeptical about the promised rich green color, but it really does pop! The 3% iron + micronutrients make a big difference in overall turf health. ✔ Year-Round Versatility – Great for spring wake-up, summer survival, and fall prep. It’s especially handy if you want to feed your lawn without overstimulating it. ✔ Moisture Management – The high potassium (potash) content is a game-changer for helping my lawn retain moisture during hot spells. I noticed it stayed greener longer, even with limited watering. Things to Consider: 🔹 The Smell – The Bio-Nite™ biosolids definitely have a distinct scent when applying, but it fades after watering. If you’re used to organic fertilizers, it’s not a big deal. 🔹 Not a Growth Booster – If you’re expecting fast top growth, this isn’t that kind of fertilizer. It’s designed for stress recovery, not aggressive growth spurts. Final Verdict: � This is hands-down one of the best fertilizers for stressed or recovering lawns. Whether it’s heat stress, drought, frost damage, or general wear, 7-0-20 Stress Blend helps bring turf back to life without forcing unnecessary growth. Would I buy it again? Absolutely! It’s a must-have for both warm- and cool-season grasses, especially during the most challenging seasons. Highly recommended for DIY lawn lovers who want to keep their turf strong year-round!
Always have great results with this product. Granules are consistent and apply evenly.
Packages were sealed but product was damp and did b not spread well Spreader setting of 5 1/4 was not enough and I had to increase to about 7 so that product could release, but coverage was not accurate. Disappointed. 5 1/4
The product is greening up my lawn very nicely.
I have warm season grass. I used Stress Blend last fall, followed again this past January with another feeding of Stress Blend. My grass looks GREAT in late February. I've been a DIYer all my life, BUT never has MY plan made my grass look this good. I used a few products last year throwing them down without a plan. These current results make me a believer. My recent soil test was also helpful and I've ordered Yard Mastery's recommendation from the soil test. Good Luck Thrower Down!!
Great Product
I applied Yard Mastery’s 7-0-20 Stress Blend with Bio-Nite heading into winter, and my lawn is holding up strong. The potassium (20%) boost is exactly what my grass needed to stay resilient against cold stress, and the 3% iron kept it looking rich and green even as temperatures dropped. This fertilizer isn’t about pushing growth—it’s about fortifying your lawn, so it survives winter and comes back stronger in spring. If you want a winter-ready lawn that can take a beating and bounce back, this is the one. 💯 Highly recommend. Will be using this every year
I live in Hillsborough County (west-central Florida). My St. Augustine lawn had a yellow tint that I could not resolve. On February 1, 2025, I applied Stress Blend, MicroGreene, and RGS. In the three weeks since, the yellow has disappeared, moderate growth has occurred, and the lawn looks healthier. I stand behind this product and will continue to use it in the coming months.
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