last year i "found" a bunch of 2x6 board on a vacant property, that was foreclosed next to my property. It also had an old chicken coop,with a good amount of chicken wire.
I took the boards made 4x4 ft boxes,stapled the chicken wire flat to the bottom. Made 4 of them FREE
filled them with half native soil and half used FFOF. also free.
ive made teas veg teas out of males plants. made banna peel,alfla pellet teas,horse manure teas. used oak leafs that are composted
Idk if thats what u wer thinking of wen u said free materials haha