Application Rates

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Milorganite. For Better Results. Naturally.

Quick Tips

  • Use 36 lbs. or 1 bag of Milorganite per 2,500 sq. ft.
  • Fertilize 3-4 times per year
  • If you only plan on fertilizing one time per year, fall is the best time to apply.

How do you manage a fertilizer program based on a foundation of organic, slow-release nitrogen?  Below you will find the information you need to build and maintain a program suited to the type of grass you grow.  For help getting your spreader set-up correctly, check the Spreader settings page.

When to Apply

Milorganite recommends a holiday schedule for ease of remembering when to fertilize.  The specific holidays that you fertilize will depend on whether your lawn is cool season grass or warm season grass

Cool-Season (Northern) Grasses

For grasses such as Kentucky Bluegrass, Fescue, Perennial Ryegrass fertilize 4 times per year.

Instructions:

Apply last application as late in the season as possible before the first deep freeze or snow fall. This fertilizer application is known as dormant feeding. Fertilizing this late in the season will allow for an early spring green up.  If you are overseeding your lawn mixing grass seed with Milorganite is an effective way to spread seed. Mix 4 parts Milorganite with 1 part seed by weight.
Holiday Application Metric rates
Memorial Day, end of May  36 lbs. per 2,500 ft2 16.3 kg per 200m2
July 4th, Canada Day 36 lbs. per 2,500 ft2 16.3 kg per 200m2
Labor Day, early September  36 lbs. per 2,500 ft2 16.3 kg per 200m2
Thanksgiving, mid November  36 lbs. per 2,500 ft2 16.3 kg per 200m2

Warm-Season (Southern) Grasses

For grasses such as Bermuda, St. Augustine, Centipedegrass, Bahia, & Zoysia fertilize 3 times per year.

Instructions

Avoid applying fertilizers with nitrogen to warm-season grasses in the fall less than one month prior to dormancy or the average first killing frost date in your area. Several additional fertilizations can be made for winter overseedings, but only as needed to keep the overseeding green. Centipedegrass and Bahia grass prefer spring and summer feedings. Avoid late fall fertilization of these species to prevent possible winter kill.
Holiday Season Application
Easter (after turf breaks dormancy) 36 lbs. per 2,500 ft2
Memorial Day 36 lbs. per 2,500 ft2
Labor Day 36 lbs. per 2,500 ft2
Early October (overseeding)* 36 lbs. per 2,500 ft2
*In regions where killing frosts can be expected, avoid nitrogen applications to warm-season grasses in the fall less than one month prior to the average date of the first killing frost.  For best results, fertilize when over-seeding.

New Lawns

Instructions:

Mix into the top two inches of soil before seeding or sodding. After third mowing of lawn, apply one 36 lb. bag per 2,500 square feet of lawn. Then follow the normal schedule for your particular type of grass.
Seed or Sod Application  Metric Rates
Seed Bed 72 lbs. per 2,500 ft2 32.6 kg per 200m2
Sodding Preparation 72 lbs. per 2,500 ft2 32.6 kg per 200m2