Monterey mushroom farm. You will have to go get it but it is cheap and sometimes free since they just need to get rid of it.

there's a place in Zellwood (apopka) off 441- usually free.

Thank you both for the replies. I called Monterey and they charge $50 for 6 yards, but the biggest problem is that they don't deliver. I'll have to find a pickup truck...

Bobwu, there prices very depending on how much they have. Last time I was there I paid $15 for 6 yards. And yes you will need a truck and bring some extra money because they sell mushrooms at the gate and you get a big bag for much cheaper than the grocery stores.

Thanks for the tip. I love mushroom too:) Question, do they load up the truck for you? Roughly how long does it take to load up a few yards?

They do load your truck.they use a tractor. it goes fast. It took maybe 15 or 20 minutes. You will have to drive around where they want. They are very nice. I come all the way from Melbourne every couple of years to get the mushroom compost. Bring a heavy duty pick up. It is heavy. I can't drive back on the highway with a load I have to come back on back roads it is just to heavy. But so worth it.