My Mother and I both love morning glories. I sprouted one that I cut from outside in water and then replanted it where I wanted it to grow. Our fences are now covered wtih them. I bring them in all the time and bloom them on window sills. I always take an envelope full of the round seeds at the end of growing season and break them open and plant them again next year. The rest fall from the pods off the vine onto the ground. I love these plants. I believe they are related to the sweet potato or yam plant.
Check out these photos.
I like to take cuttings off of different yard plants and put them in jars on my windowsills. This morning glory actually bloomed.