Oh, no, not for the chickens.OhGood, you haven't fallen for the coffee grounds chicken bedding fad.
I saved coffee ground for a gardener friend, thought she put them on her tomato plants.
I want to cover my blueberry bed with about 6" of grounds. I've been putting grounds around the 6 existing plants, the soil is getting some texture besides just sand-sand-sand.
I enlarged the bed by 50% to add 3 more plants. Wow, that soil sure needs some help. I've been piling oak leaves there, but 3 inches down, it's sand. I'm going to put a good bit of compost, peat moss, and coffee grounds in the holes when I plant the new bushes.