I sourced a trailer of horse manure yesterday and have some questions about what to add to it. I read in the FAQs here that it should be considered green and read in another place that its classification depends on how longs it had been sitting and a number of other things.
The guy I got it from said that it had been sitting and steaming all winter long. The pile was about 40' long and up to 4' tall.
I want to get it composted well so that I might be able to use it later in the summer/fall. Is it still considered a "green" or because it has been sitting for a while and isn't fresh maybe not so green anymore?
I do need to get it to heat up though to make sure all of the seeds and whatnot get destroyed. Hoping to partake of your collective wisdom. Thanks.