I live in the desert, so I definitely have a hard time growing grass. All outdoor grass in my city has been heavily fertilized and isn't safe for pigs, and organic grass would just shrivel up in the sun. So, I have to grow it indoors in little trays in the window and my piggies don't have the pleasure of roaming around on a grassy lawn like they would if we lived elsewhere. Also, keeping my pigs indoors is the only option because it's too hot to have them in a hutch, but I love having them in my house anyways.