Milorganite 32# 6-4-0
Milorganite 32# 6-4-0
Milorganite’s slow-release nutrients are available as plants need them. There’s no immediate, excessive release of nutrients after fertilizing, which causes a flush of growth.
At least 80% of the nitrogen in Milorganite is water insoluble (slow release) and is delivered to the roots through microbial activity in the soil, but the conditions need to be right. Microbial activity occurs when soil moisture is adequate and soil temperatures are 55–85 F. The microbes break down the nutrients from Milorganite making them available to plants. When conditions aren’t favorable, Milorganite’s nutrients stay right where they are until there’s enough water and the temperature is within range.
Slow-release nutrients, like those in Milorganite, are gradually available for up to 10 weeks, which means fewer applications. This extended feeding provides more uniform growth, a deeper and better-established root system, and a healthier lawn and garden. Slow-release nutrients are also better for the environment because the nutrients are less likely to leach into waterways.
Milorganite | Cool-Season Grass Application Rates
When to Apply Application Rate
Memorial Day, end of May 32 lbs per 2,500 sq ft
July 4th, Canada Day 32 lbs per 2,500 sq ft
Labor Day, early September 32 lbs per 2,500 sq ft
Thanksgiving, mid November 32 lbs per 2,500 sq ft
MD & MI: Apply Milorganite two times per year at the rate of 32 lbs per 5,200 sq ft (per state regulations). Check with local ordinances for fertilizer blackout dates.
Northern, Cool-Season Grasses
Northern Grasses such as Kentucky bluegrass, Fescue, and Perennial Ryegrass should be fertilized four (4) times per year.
In spring, fertilize your lawn with Milorganite after the last frost and once your lawn begins to grow and green. A good rule of thumb is when daytime temperatures are consistently in the 60s which means soil temperatures are in the mid-50s. Check out this online tool to learn your current soil temperature. If you fertilize too early, the plant will focus on shoot growth and you will sacrifice root growth. Deep roots help your lawn better withstand drought conditions during summer months.
For the last application, fertilize with Milorganite as late in the season as possible—just before the first deep freeze or snowfall. This fertilizer application, known as “dormant feeding,” encourages healthier, greener lawn in spring.
New Lawns
Mix Milorganite into the top two inches of soil before seeding or sodding. After you mow the lawn for the third time, apply two 32 lb bag per 2,500 sq ft of lawn, then follow the recommended fertilizing schedule for your grass type (see above).
Milorganite | New Lawn Application
RatesSeed or Sod Application Rate
Seeding 64 lbs per 2,500 sq ft
Sodding 64 lbs per 2,500 sq ft
