Thanks for the tip. I mow about 6 acres, so I don’t expect to gather all those clippings. But, a few couldn’t hurt.
Are you saying that the hot clippings would catch fire spontaneously?
No not catch fire but they will get the pile to hot. You may see the grass in the pile turn almost to ash but not combust. Green grass needs a lot of browns mixed in (leaves or as I do dried and brown grass).