I get all mine from Chronus and the Gladiator. As I know, there might be a coupl eplants that it harvests from as well. Your best bet is to look up Amber through central, and see who drops it and where it can be harvested from
I have gotten a few from Red Bell Peppers but none from King Parsley and I plant more of them. I am not using them for anything so waiting months and only getting a few isn't an issue for me.
