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  3. 16-0-0 Double Dark 6% Iron - Bio-Nite - Granular Lawn Fertilizer by Yard Mastery
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16-0-0 Double Dark 6% Iron - Bio-Nite - Granular Lawn Fertilizer by Yard Mastery
16-0-0 Double Dark 6% Iron - Bio-Nite - Granular Lawn Fertilizer by Yard Mastery
16-0-0 Double Dark 6% Iron - Bio-Nite - Granular Lawn Fertilizer by Yard Mastery
16-0-0 Double Dark 6% Iron - Bio-Nite - Granular Lawn Fertilizer by Yard Mastery
16-0-0 Double Dark 6% Iron - Bio-Nite - Granular Lawn Fertilizer by Yard Mastery
16-0-0 Double Dark 6% Iron - Bio-Nite - Granular Lawn Fertilizer by Yard Mastery
16-0-0 Double Dark 6% Iron - Bio-Nite - Granular Lawn Fertilizer by Yard Mastery
16-0-0 Double Dark 6% Iron - Bio-Nite - Granular Lawn Fertilizer by Yard Mastery

16-0-0 Double Dark 6% Iron - Bio-Nite - Granular Lawn Fertilizer by Yard Mastery

  • $44.99
  • $39.99

16-0-0 Double Dark blend will do just what the name implies: make your lawn double dark green. It's really that simple - green and greener.

  • Covers 6,000 sq ft (18 lb) - OR - 15,000 sq ft (45 lb)
  • Analysis is 16-0-0:: N-P-K, plus 6% iron
  • Contains Urea for a darker green color
  • Great for greening up the lawn but won’t flush it with too much growth

Product Description:
First off, let's just point out that Double Dark contains 6% iron. There are very few granular fertilizers available that have this much iron in them. We all know that iron is the key to that dark blue-green color, but...Double Dark also contains 16% nitrogen because one thing that so many people forget is that iron won't work if the lawn isn't actively growing.

Think about it: the lawn has to be growing in order to take in nutrients and what element stimulates growth? Answer: Nitrogen The secret to Double Dark is that nitrogen and iron are working together. Search around and you will hear people who say, "I was using Ironite but after a while, it just stopped working." That is because there is no nitrogen in that product to keep things growing.

The nitrogen we put in Double Dark Blend isn't over the top - it's just respectable at 16% and, one-quarter of that N is slow release. You will get some green from the N too, but it's not going to smack your lawn in the face and make it flush out a bunch of top growth. The nitrogen is really just there to stimulate intake. 

All-Natural Bio-Nite™ in Every Bag!
Bio-Nite is a bio-solid filler we add to every bag of Double Dark Fertilizer. Bio-Nite is the same thing as Milorganite, but instead of being sourced in Milwaukee, it comes from South Florida. We can tell you that it “smells like a whole lot of success!” The good news for you is that the smell tells you that the included Bio-Nite is feeding microbes in the soil every time you apply and they love it!

Check out the video below for more information: 

Application Information:
Double Dark Fertilizer Blend 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.

 Coverage

An 18 lb bag covers 6,000 sq ft

A 45 lb bag covers 15,000 sq ft

Application  Details

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


Apply every 30-45 days


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: 16-0-0 Double Dark PDF Labels
  • Spreader Settings: Granular Fertilizer Spreader Settings
  • Package Includes: 18 lb bag - OR - 45 lb bag based on selection
  • 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, UT, NV and OR

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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