Have a two acre area that is mostly fescue with about 30 % of that being tall fescue. Will hitting it with iron darken it at all ?
Thank you R !Iron, especially iron sulfate, will darken the grass by leaving a black stain. This effect occurs even if there is sufficient iron in the soil.
My opinion is that the liquid is much more effective than the dry products--which essentially contain some powdered rust.
I am not sure if the chelated form of iron is more effective. I cannot find the best photo from my four-rate iron test from a few months ago. No photo from my new test yet; coming soon maybe. Meanwhile take a look here.
https://www.lawnsite.com/threads/iron-for-color.488832/
I agree Milo does seem to work and if the area is sandy it is even better yet. This is clay and heavy soil.You need a soil test to know what is going on. I will recommend trying to find some Milorganite and try that. I have three acres at home. I like to keep the area around my house and back yard plush and keep the weeds out of the rest. I run lesco products on the whole thing and then add the Milo to the areas I want thicker and greener. It is hard to find so check Home Depot's website and see if it is in stock before you go. The nice part is that you really can't over-apply it and it won't burn. Iron might help, but with all this rain my yard has a yellow tint recently. Milo takes a few weeks to show up but it really does work well.
I think the entire thread is worth review for anyone having questions about iron.
However does it answer the fescue question ? or are all grasses the same...and does that work for sedges too ??