Do you live in an area that has alkaline soil ?

Yes where do you live? In my part of Texas I could pour Ironite on all day every day and nothing would happen. ...well, the snails would die and likely so would the fire ants.

I live in Washington State. It's in the 60's-70's currently. I decided to water it for a good hour that night to try and wash things down.

It sucks that I need to wait to see if it hurts the lawn, like slow torture.

I read every possible thing I could find online including that post about it possibly blackening with 2x too much.

Couldn't find a single post online of anyone who did as much as I did (apparently everyone else reads and follows directions).

Guess I'll post pics of the progress for information/entertainment.

Day 2

It may be a hair darker than Sunday but too early to see any real change so this'll be a starting point.

You did what we would have recommended by heavy watering. Are you east or west of the mountains?

West... about 40 miles north of Portland

Day 4 today and still no change

If I see any change I'll post a picture.

I think it will take 1-3 weeks for a color change to happen so I'm still waiting *fingers crossed*

Too late now, but with a lawn that small I would’ve just gone at it with a shop vac and tried to suck as much extra ironite up as possible

If I'm not mistaken, Ironite iron is iron oxide. That doesn't even do anything in alkaline soils as alluded to above. It's not as if the product was primarily iron sulfate, which is readily water soluable. I wouldn't get worked up about it.

It is surprisingly hard to find the exact ingredients in Ironite online. However, this lady says the iron is actually in the form of ferrous sulfate, which is soluble. This is a kind of salt that can burn the lawn so watering it in is a good thing. This is a concise article worth reading, and I simply assume it is accurate.

http://homeguides.sfgate.com/can-ironite-burn-lawn-93587.html

Your soil stores nutrients like calcium, magnesium, potassium, iron and so on at its exchange sites. There are several factors that determine which of these will attach to the exchange sites, pH being one of the factors. Concentration of each is another important factor. If you flood your soil with soluble iron, you may deplete your soil of the other nutrients due to the sheer number of iron ions looking for an exchange site. After things settle down it might be a good idea to get a soil sample.

I think dchall wanted to know if you were west of the continental divide. Since you are west, you might also take some photos of the Pacific ocean each week to be sure there is no mass extinction. Or, contact NASA to see if their satellites show any red algal blooms from all the iron. OK, this last part was just a joke. :o)

6 days later... lawn seems a bit darker but nothing drastic has happened.

Although, as mentioned, the local wildlife population has been devastated. ;)

Any update?

The new ironite formula stinks! After pennington bought it, the product went down hill.

Not sure if it was any good to begin with. How good is iron oxide anyways for an iron source. something tells me it's not very bio available.