I have used it, it works great and shouldn't have any detrimental effects on your lawn. In fact it should make it greener, as it's just an iron solution. Read the label, but I am fairly sure it won't affect germination either. Moss likes damp, acidic soil, with plenty of shade. Mulching leaves will lower pH a tiny bit over time, but it shouldn't cause a moss problem. You really should do a soil test to see what your soil's pH is, and which lime you should use. Most eastern soils are acidic, and calcium deficient, which would necessitate calcitic lime, not dolomitic which is what you normally find at big box stores.

Mushrooms are the result of having a healthy fungal mat in the soil--the mushrooms are the fruiting bodies. They like organic material, so levels must be good enough in your area to support them. That's a good thing. Nothing's wrong. You're supposed to have a healthy fungal population in the soil. The only way to get rid of it would be to sterilize the soil, and that would mean that very little would grow. If you find them unslightly, you can certainly knock them over if you want. The next time it gets damp, they'll be back.

kandm, There are many mushroom growers in PA. For example, Kennett Square, home to Longwood Gardens, is sometimes referred to as Mushroom Capital of the World. A small mushroom growing company is located about 20 min from my house. After they grow mushrooms for a certain time, they pile the used soil outside, pasteurize it with hot steam, let it age, and then they sell it. Some of the mushroom growers give their mushroom compost for free, but they are about 1- 1,5 hours away. triple b, Probably, Hortico was not exactly clear with their statement. It is not recommended to plant seedlings in pure mushroom compost, but mixing it with soil is fine. Unpasteurized mushroom soil may contain some insects and seeds, hot and not completely aged mushroom soil is not good for the tender roots of very young plants. But aged mushroom compost is ... well compost. Here is a link to the site of The American Mushroom Institute http://www.americanmushroom.org/compost.htm

Several years ago I had a big bunch of mushrooms in the front yard. They seemed to be spreading in lines, not rings. One morning I came out and picked a full 5 gallon bucket from one day�s growth. They looked like they were progressing to the neighbor�s yards. I did some research and some university sites said golf courses used a product, I think called "Prairie", but I could not find any sources. They also used a "wetting agent". I finally decided to try a fungicide. I bought GreenLight brand Fung-away from a local nursery. The product came in a hose end sprayer. I added some of the wife�s laundry spot cleaner "Sunburst" as a wetting agent. I used one quart in an area of about 15 by 20 feet. Then I soaked it in good, trying to get it deep enough to get to the actual fungus area. This worked. I used one Qt Sept 08, and had to use another Pint along the edge of the previous infection in Aug 10. No more mushrooms. However, in July, 11 I have a new infection, in a line, right at the edge of the area I previously treated. Green Light no longer makes or sells Fung-away. My container label was damaged, but the active ingredient as best I can see was Triadmegon, Triaoliyil and Chionophanory. Do not quote me on these names, the label is almost gone. Since I could not buy Fung-away, I tried a Bayer Advanced product called Fungus Control for Lawns, with Propiconazole. I made two applications, first 8 oz with Shout in July, and the rest of the quart in early September. Today I picked more mushrooms on that line.