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

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 Available in multiple sizes* 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 peo