About the only thing I give my adult rabbits is a small piece of dandelion leaves. It does tend to increase appitite so I dont give them much. I will give a protective doe a small piece of apple to keep her occupied while I take the next box out to check kits.
Adult rabbits can not handle the greens like we would all think. I am doing an experimant right now and am pasturing a small group of meat kits. They are doing great! But, I move it daily and have a ton of clover in the pasture.
Hope this helps
Okra leaves ARE safe for buns, but like any grens if your bunny isnt used to orka leaves start slow, only a couple of leaves at a time.
rabits can eat 100% leafy greens as a diet (kale, carrot tops, clover ect) but they have to be worked up to that slowly increasing leafy greens and decreasing pellet gently, and introducing NEW leafy greens gently too. if your bun has never had clover for instance, dont go giving her an entire cup of clover the first time she has clover or youll upset her tummy...