Do your cats nibble incessantly on your houseplants? If you're tired of little bite marks in your ferns and waking up to your bamboo on the floor, get them something of their own!

Cat grass (Dactylis glomerata) gives cats something to munch on, and supplements their diet with a variety of essential nutrients. Cats can eat a few blades of grass every day, so give them ample amounts of it to keep them coming back.

It's best to plant a bunch of it in a short, wide pot and place it within easy reach of the cats. The wide pot prevents the cats from tipping it over, which would create even more mess.

Some cats end up expelling the cat grass through vomiting. While this is good for the cats (by reducing hairball problems) it can cause all kinds of headaches around the house. You can buy small quantities of cat grass to test your cat's reaction to it before buying a plant that will make your cat puke all over the place.

You can supplement the cat grass with catnip for an extra treat for the cats that will hold their attention, leaving your house plants alone. Make extra sure that the pot is sturdy and hard to knock over (it may help to weight the base) as cats tend to go batty around catnip. Catnip doesn't make cats throw up, so if your cat ends up puking after eating cat grass, catnip is a great way to go.

Keep the cat plants in a container away from the food, so they don't see the plants as regular food.