I'm wondering if cat litter would be a good medium for growing grass?
I have no access to soil, since the landlords dug up our front garden and laid a sterile concrete slab for no obvious reason. The poor cat is now desperately searching for any blade of grass in the vicinity to munch on.
Kitty grass kits are available in pet shops,seeds online why not plant a low planter with catnip ( nepeta cataria is the variety you need). in the middle and a border of kitty grass