I'm going to try to grow inside and watch the fun.I buy pot of "cat grass" from store or grow some myself. Mine eat every morning and usually do not Just eat like vegetable. When I am late to feed and they eat too much it comes out from front. They are indoor cat never goes out. They also go nuts on this one when I bring some from outside.
If you are growing, I recommend to buy wheat berries from bulk food section, or something like this. IMO "cat glass seed" is total rip-offI'm going to try to grow inside and watch the fun.