Passionflowers are gorgeous! My mom used to grow them. My chickens don't like celery greens. They love melon, especially the seeds. I offered them cooked carrots and they kinda picked at them, but not much else. Oh, they like scrambled eggs, too. They seem to prefer weeds and bugs to most of the fruits and veggies I've given them. Wouldn't touch the fresh peaches from the tree, even though they were ripe and sweet. I'll try mashing and making smaller pieces of things, that sounds like a good plan.