12-12-12 Starter Fertilizer 3% Iron - Bio-Nite - Granular Lawn Fertilizer | Yard Mastery

12-12-12 Starter Fertilizer is your go-to for seed/sod or general feeding, formulated specifically for DIYers. Starter Fertilizer Fixes Everything!

• Covers 6,000 sq ft (18 lb) - OR - 15,000 sq ft (45 lb)
• Analysis 12-12-12:: N-P-K
• Contains 3% Iron + Bio-Nite™
• Great for seeding/sod installation

Product Description: 

The Yard Mastery Starter Fertilizer contains 12% nitrogen, utilizing premium nitrogen source ammonium sulfate, which brings a really nice steely-blue-green color to turf and interacts well with the other elements in the overall blend.

This blend also contains 12% phosphorus, which is plenty to push roots in an existing lawn or stimulate rooting in your seed, sod, plug, or spring project. Rounding out the macros is 12% potassium. Here, we have opted for the premium formulation, sulfate of potash, known to have a lower salt index. As with all Yard Mastery blends, we have also included a nice amount of iron at 3% and a smattering of other micronutrients, including boron, copper, manganese, molybdenum, and zinc.

All-Natural Bio-Nite™ in Every Bag! Bio-Nite is a bio-solid filler we add to every bag of Starter 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 this video for more information: 

Application Information: 

You can apply Starter Fertilizer when you seed or sod, but it’s also great for anyone just looking for “all the things”. If you have a soil test that shows that you are low on the 3 big macros (Nitrogen, Phosphorus, and Potassium), this is an excellent choice.

Starter Fertilizer can be applied at any time during the growing season for the following grasses: 

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

Product Resources:

• Label/Specs/SDS: 12-12-12 Starter Fertilizer 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.