Fertilizer Rates & Schedule

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Milorganite Fertilizer. For Better Results. Naturally.

Quick Tips

  • Use 1 bag (36lb) 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.

Below you will find information on the recommended Milorganite fertilizer schedule and rates based on the type of grass you grow.  

When to Apply Milorganite?

For ease of remembering when to fertilize, we recommend following the holiday schedule.  The specific holidays that you fertilize will depend on whether your lawn is cool season grass or warm season grass.

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, for seeding application rates.

Cool-Season (Northern) Grasses

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

Apply your 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 in late fall will encourage a healthier, greener lawn next spring.

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.  Centipedegrass and Bahia grass prefer spring and summer feedings. Avoid late fall fertilization of these species to prevent possible winter kill.

Avoid applying Milorganite to warm-season grasses in the fall less than one month prior to dormancy or the average first killing frost.  If you fertilize too late in the fall the turf is likely to be less hardy as it enters cold weather, and more susceptible to winter injury.

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

Mix Milorganite into the top two inches of soil before seeding or sodding. After the third lawn mowing, apply one 36 lb. bag per 2,500 square feet of lawn. Then follow the recommended schedule (above) for your grass type.

Seed or Sod Application  Metric Rates
Seeding 72 lbs. per 2,500 ft2 32.6 kg per 200m2
Sodding
72 lbs. per 2,500 ft2 32.6 kg per 200m2

For help with setting your spreader, visit Spreader settings page.