if you want to save seeds from it, i suggest putting it in a pot. the seeds wont be done and fully ripe for quite some time. by then you will want to put summer crops in its place. in a pot you can keep care of it on the side and let the seeds get as ripe as possible for best results when you plant them.
one year i left a few and took a few in pots, i ended up pulling the ones i left in ground out before they finished because i needed to plant something else.
For all things come from earth, and all things end by becoming earth.