16-0-0 Double Dark (with 6% Iron) and Bio-Nite™ - Granular Lawn Fertilizer

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 more green. One 45 lb bag covers 15,000 sq ft 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 the nitrogen and the iron are working together. Search around and you will hear people who say, "I was using Ironite but af