Then lucky meLast summer, I tried to grow a sweet potato,,,,, just for the foliage in a pot. I buried it, and watered it,,,,,, and NOTHING HAPPENED. Gave it a month.
I threw it out, but before I did, looked at it. Nothing happened to it when it was buried in soil.
I don't think farmers sprout their sweet potato starts in jars.
Glad you decided to join this thread. I know you were looking for chicken friendly gardening options. There's plenty of experienced people on here.