Know How Long Does Milorganite Take To Work On A Lawn Over Here

Have you been looking at lawns in your vicinity and wondering what the magic potion is that folks are using to ensure lush green grass grows on their lawns? All this while the grass on your lawns just doesn’t grow – or looks anything but luscious?Well, the answer lies in Milorganite, the natural, organic fertilizer made by the Milwaukee Metropolitan Sewerage District from recycled sewage.Now, the question arises, once applied, how long does Milorganite take to work on a lawn?

Read on as we provide detailed and invaluable information on the way Milorganite works as well as the time that it takes to really show a visible impact on your lawn.


To really get a grip on the time that Milorganite takes to work on a lawn, it is essential to get a sense of its background – and indeed its potency.

Essentially, unlike a lot of chemical fertilizers in the market, Milorganite is 85% organic, primarily comprising of nitrogenous elements. These elements provide vital nitrogen to plants, which in turn are able to:

  • Grow faster
  • Form foliage rapidly
  • Ensure the formation of chlorophyll

These three imperative benefits provided by Milorganite prove crucial to the way lawn grass starts to grow faster and richer, upon its addition.

The slow release factor

A crucial characteristic of the nitrogenous elements in Milorganite is the extent to which they release nitrogen slowly. As a result, they are in a robust position to provide vital nitrogen over an extended period of time.

This also implies that you do not need to be concerned about fertilizing your lawn too frequently; or that nitrogen availability will in anyway prove to be a concern. Instead, once applied, you can be reassured that your lawn will receive its requisite supplies of nitrogen over a prolonged period of time.

The safety quotient

When it comes to your home and its surroundings, you do not want to risk contaminating the soil with harmful chemicals. By being as much as 85% organic, the chemical quotient in Milorganite is reasonably less.

As a result, the chances of surface contamination are in turn minimal.

So how long does Milorganite take to work on a lawn?

By now, you are clearly itching to know exactly how long Milorganite takes to work on a lawn.

Does Milorganite work?

Yes, Milorganite works and typically, you can expect visible results in as little as 1-2 weeks.

To understand this timeline, you need to go back to the slow release nature of Milorganite that we referred to in the previous section. This particular characteristic of the fertilizer implies that nutrients are available to your lawn grass in a protracted manner.

Usually, we can look at as much as a 10 week time frame over which a single application of Milorganite will continue to have its impact.

Now, grass tends to grow at the rate of 2-3 centimeters every week.

Therefore, considering the above two factors, we can easily hypothecate that visible results will be apparent to you within about 2 weeks from the time you apply Milorganite. As the grass starts to grow further, these results will be obvious to you in a greater way, not to mention possible envy on the part of your neighbors!

The video below provides an excellent perspective on the kind of difference that Milorganite makes, in as little as 5 days from the time it is first applied:

You can easily use this as a referral point to gauge the speed at which Milorganite will work on YOUR lawn, once it is applied.

How often should i apply milorganite?

how long does Milorganite take to work on a lawn

The next obvious (and rather common!) question is the frequency with which Milorganite needs to be put onto your lawn.

Usually, once every 10 weeks would easily suffice.

In fact, if you look at manufacturer guidelines provided by the Milwaukee Metropolitan Sewerage District, an application regimen of 4 times in a calendar year is recommended. This clearly falls in line with the 10 week scheduling suggested above, which takes into account the winter months wherein lawn grass growth is unlikely.

Your location matters

Clearly, your location matters when it comes to the application schedule. For instance, if you are in sunny Florida with warm conditions throughout much of the year, the winter months might have relatively lesser relevance.

As a contrast, if you are in upstate New York or in Massachusetts, with long, wintry conditions, then you might want to suitably adjust your Milorganite application scheduling.

How Much Milorganite to Apply?

All this while the grass on your lawns just doesn't grow Well, the answer lies in Milorganite. How long does Milorganite take to work on a lawn?

The next, chronologically obvious question asked most frequently pertains to the quantum of Milorganite to be applied.

In this regard, Milorganite packaging provides pertinent information on how much of it to apply. We strongly recommend that you stick to the given instructions.

Remember that excess Milorganite applied too frequently will only end up causing more harm than good. Instances include frighteningly yellow colored grass caused by excess application of nitrogenous fertilizers like Milorganite.

On the other hand, less than desirable usage will lead to a possible faded color of green in your lawn grass.

Therefore, the quantum you apply should be just right; available instructions given with your product will assist you on that.

A Note on Milorganite Smell

Sure, Milorganite has a strong and unpleasant smell to it. This is purely due to its organic nature. Typically, this smell wears off within a week of application. Yes, under hot and humid conditions, the smell might persist for longer.

We suggest that you try to overrule this aspect as much as you can; at the end of the day, it is a trade-off between the long-term benefits you reap from Milorganite application versus the short-term foul odor which you need to bear temporarily.


This article provides a definitive perspective on how long does Milorganite take to work on a lawn?

Reading through, you would have obtained an excellent standpoint on the expected timeframe for Milorganite application to show visible results.

Alongside, we have also provided invaluable information on numerous aspects related to optimal usage of Milorganite and its nuances.

If you still have any questions on Milorganite usage or would like to confirm does Milorganite work, feel free to comment below.

Remember that at the end of the day, if you are looking for:

  • Healthy, green grass
  • Low maintenance fertilizer which requires infrequent application
  • Avoiding chemical fertilizers with harmful side-effects

Then Milorganite definitely makes an excellent choice!

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