|I have been trying to purchase wheat grass seed so that I can plant my own "pet grass." My dog has problems with her stomach. During the summer months we have no problems as plenty grows outdoors. But this time of year we have a major problems. I found small containers that are sold at Petco, but the grass only lasts for a few weeks, and at $4.00 each container, it gets quite expensive. I would love to be able to plant my own container in the house, but I have had no luck in finding where to buy the wheat grass seed. I'm hoping that you will have an answer.