At the same time, I took a 10-15 sweet onion that was sprouting in the bin and broke it into its natural divisions and planted them in a clay pot. I remember noting that this was on the 17th. This variety was developed at Texas A&M (I think) and was named for the date on which sets should be planted, but I don't know when to harvest. I have several that sprouted and have now shot flowers or seeds or whatever the pods are called. When should I dig them up?