Unfortunately green beans won't sprout roots that way. you will have to replant. what is in the ground may come up if they had leaves below the break, but I would replant. peas and green beans are so fragile in windy conditions they really need strong supports to help them.We've had some very bad windy weather and my new green bean plants (about 5 inches tall) bent completely in half and broke skin of stem. I am hoping, what is in the ground will continue to grow, I took the top halves and put in water. Will they sprout roots? Thanks.