Hey there! I have an indoor cat and we're setting up a bit of a catio for him out on the deck. I've gotten a large shallow planter that I'd like to fill with something for him to dig in, but I'm not sure what sort of material would be best. I thought sand originally, but the one thing I can find talking about digging for cats referred to fresh soil. Unfortunately searching is mostly turning up people looking for help with cats digging up their flowers. Any idea what would be best?
Maybe just test a bunch of things and see? If you’ve got the space, you could put different substrates in shallow trays (like metal baking trays) and see which ones he likes to walk on or dig in or lay on. That could inform you what he’s most likely to use in the actual planter. Or, you could do a mix - dirt under, sand on top?