7-0-20 Stress Blend  3% Iron - Bio-Nite - Granular Lawn Fertilizer
7-0-20 Stress Blend  3% Iron - Bio-Nite - Granular Lawn Fertilizer
7-0-20 Stress Blend  3% Iron - Bio-Nite - Granular Lawn Fertilizer

7-0-20 Stress Blend 3% Iron - Bio-Nite - Granular Lawn Fertilizer

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At MySoil® we do not produce or manufacture fertilizer products, but rather connect DIY’ers to vetted products developed by vendors specifically for the DIY market. 

7-0-20 Stress Blend is a high potassium, low nitrogen, and micronutrient lawn fertilizer. Its 100% slow release, meaning this fertilizer will slowly release nutrients to your lawn over 4-6 weeks. The high potassium will ensure your lawn has great color and more strength against drought stress, traffic, and disease. This fertilizer is a "hybrid", containing synthetic nutrient components as well as a natural organic base component called Bio-Nite. The Bio-Nite component feeds soil microbes and assists in building soil health. The Perfect Combination!  

  • One 45 lb bag covers up to15,000 sq ft
    • Low:   3.0 lbs/1000 sq ft covers 15,000 sq ft
    • Med:  6.0 lbs/1000 sq ft covers 7,500 sq ft
    • High:  8.0 lbs/1000 sq ft covers 5,625 sq ft
  • Analysis is 7-0-20 : N-P-K
  • Contains 3% Iron + Bio-Nite™
  • Contains micronutrients: magnesium, boron, copper, manganese, molybdenum, and zinc
  • 100% Slow Release 

Product Description:
7-0-20 Stress Blend made its DIY debut in 2020 with a limited run that summer. The results were so impressive that production was increased making it one of the top selling fertilizers in the DIY market in 2021!

7-0-20 Stress Blend also has a stack of micronutrients lawns need, including magnesium, boron, copper, manganese, molybdenum, and zinc. This means you don't have to buy a separate micronutrient fertilizer; it is all built into one! 

For warm-season turf, this is a great early spring app as your lawn is waking up slowly. Warm-season lawns always seem to wake slowly and it's not a good idea to hit them with too much nitrogen when they are waking up from winter. It can also be used anytime of the year.

For cool-season turf, this is a good late spring and summer fertilizer, hands down, but can certainly be used year-round.  

All-Natural Bio-Nite™ in Every Bag!
Bio-Nite is a bio-solid filler added to every bag of Stress Blend Fertilizer. Bio-Nite is the same thing as Milorganite, but comes out of South Florida instead of Milwaukee. The included Bio-Nite is feeding microbes in the soil every time you apply!

Application Information:

Stress Blend Fertilizer can be used on the following grasses:

Cool Season Lawns - Kentucky Bluegrass, Turf Type Tall Fescue (all fescues), Ryegrass
Warm Season Lawns - Bermuda, St Augustine, Zoysia, Centipede, Bahia


A 45 lb bag covers up to 15,000 square feet

Application  Details

Apply at 3-8 lbs per 1,000 square feet of lawn area

Apply every 4-6 weeks

Can be applied at any time during the growing season for both cool and warm-season lawns

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:

  • Label: 7-0-20 Stress Blend PDF Label
  • Package Includes: 1 - 45 lb. bag
  • Storage: Store in dry conditions away from moisture. Can be stored for up to 2 years.
Shipping costs

Included for most states within the U.S.

NO P.O. Boxes

$9.95 for CA, WA, ID, and OR

State Restrictions

Alaska (AK), and Hawaii (HI)


Yes, free stickers with this item

Typical Delivery Time

4 - 7 business days

Product Type


Cancel | Return | Exchange

All sales are final, no cancellations, returns, or exchanges

Customer Reviews

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Donald SVG verified by SHOP
United States United States

Works well without risk of burning a stressed out lawn.

Ryan SVG verified by SHOP
United States United States

Saved my grass last summer that was lacking potassium

United States United States

Giving this a try

Excellent process from mysoiltest.com, They recommended to purchase this as an all-in-one fertilizer. I purchased it on 03/04/2023. I will report back here after I receive the product and applying it to my grass. My grass looks really good, trying to make it even better. We will see.