[JerseyGiantChick]

We add grass, weeds and from rabbits, the rest like clovers and long gras the rabbits eat first.

[Yankeeredneck]

Just about everything goes in my compost but grass, and weeds make the greens.

[The1plantguy]

For maximum volume and green, you could grow corn. If you grow sweet corn, you could benefit from the ears for your family then the green stalks for your compost pile. If you want more browns, grow popped corn or dent varieties and harvest when dried out.

[MartHale7]

I used to use weeds, but now I moved to fodder crops, tree hay.

Bolivian sunflower, grows here in Florida with zero fertilizer and grows over 15 foot tall.

Mulberry trees, easy to root from cuttings, gives fruit, and the leaves high in protein.

Comfrey proven with teas to be effective for plants, I have trouble growing it here in Florida, but fantastic plant for feeding other plants.

You can use weeds, but you risk spreading more weeds, if you use fodder crops that grow like weeds you end up with a much better product, or identify the weeds with a phone app, if they are edible then they may be a good crop to feed your compost.

I use bananas here in Florida whole plant as the earth worms adore them.

[The-Teenage-Gardener-YT]

Pigeon peas the northern kind they make a huge amount of biomass and they improve soil here in c fl zone 9b they grow great so fir your zone buy the northern varieties.Good Luck!