Domestic cats eat grass. Motivated by instinct, they consume it to maintain good health, and it aids in recovery from injury or illness. Deprived of outdoor grasses, your indoor kitty may very well turn to your houseplants as an alternative to satisfy that instinct. Wheatgrass is the most nutritious of all grasses, and cats just love it. You can easily grow your own by making these simple and inexpensive little wheatgrass greenhouses indoors. You can get the organic hard wheat berries at your local health food store, and you probably already have everything else you'll need. If you repeat the process every 2 to 3 days, you can maintain a stead supply of healthy organic wheatgrass for your pet.
Measure a tablespoonful of organic hard wheat berries into the empty plastic quart jar. Cover the berries with about 1/2 inch of distilled water. You can use tap water, but distilled water has no impurities and is therefore preferred.
Cover the opening of the jar with a scrap of nylon cut from old stockings or some cheesecloth. Use a rubber band to hold it firmly in place. Swirl the jar around a little to make sure the berries are well soaked with water. Drain that water out of the jar. This will ensure that any dirt or debris present will be washed away.
Add enough water to the jar to fill it halfway. Place it in a warm, well-lit location such as a windowsill. If the sun isn't shining, overhead lighting will suffice. Begin the germination process by allowing the berries to soak undisturbed for about 10 hours.
Drain all of the water out of the jar. Turn it upside down and prop the opening up at a 45-degree angle in the sink or dish drainer in a well-lit area. Let the berries drain undisturbed for about 8 hours. By then, the berries will begin to sprout.
Put ½ inch of potting soil in the shallow bowl. Add ½ inch of peat moss and mix well. Level the planting medium gently with your fingers but don't pack it into place. Fill a plastic bottle with distilled water. Spritz the surface of the soil with just enough water to moisten it. You don't want it too wet or runny.
Spread the sprouting berries gently across the surface of the planting medium in a single layer so that they are barely touching each other. Cover with ¼ inch of medium and spritz with water to lightly moisten. Cover the bowl with clear plastic wrap and use a fork to poke a few holes in it. This will allow for air circulation.
Place the wheatgrass greenhouse in a warm, well-lit location. Keep the planting medium barely damp but not wet. Too much moisture will encourage the growth of mold. Your wheatgrass should be about ½-inch tall in just 2 to 3 days and mature enough to offer to your cat in about 10 days.