Peonies can be obtained from seeds. For peony seeds to grow it does require a little special treatment. First, prepare sandpaper to rub the hard surface of the peony seeds. Next, prepare water to soak the seeds. Put the peony seeds that have been sanded into the water and soak for about a day. After the peony seeds are soaked, prepare the pots and planting media. Allow peony seeds to be planted in pots for up to two months.