Thanks.
I knew that stuff, but I appreciate your efforts to educate!
I try to always speak up if I am not sure someone knows how to care for a bunny.
Although I appreciate all the suggestions people have made so far, I actually may not use any of them.
They'd be good eatin for me, but less so for bunny.
Too much CALCIUM is a concern for house rabbits because they get the chance to live long enough for that to affect their kidneys,
Plus the gas thing.
I think the green that lasted the winter for me was escarole. And that might have been the winter that was warmish.
I've tried parsley and cilantro on the windowsill with mixed luck. NEVER lucky enough to get a big healthy plant. I often cut my evergreen culinary sage and put the cuttings in water on the windowsill. But that big wonderful sage plant died back to its roots this past winter so....
Store bought red leaf is the fallback position, with stems from the herbs I buy for my own cooking.