Meadowlark overwinters his onions with great results and I'm sure others do too. He is in Texas. I'm in Tennessee. Two different climates. I didn't have much luck overwintering. I have better luck starting mine in seed trays in mid Jan and then transplant them out. Yes some do die along the way. I've sown Texas Grano and Red Grano. I have not sown Texas Supersweets so have no experience with that exact variety. Can't imagine its much different since they are short day onions.
You'll just have to pick something and figure out what works for you. There is no "complete information" on what to do. Everyone does things a little different and trial and error is the best experience. Too late to plant 10-15-23 so why not try something else? Sow some seed already.
You'll just have to pick something and figure out what works for you. There is no "complete information" on what to do. Everyone does things a little different and trial and error is the best experience. Too late to plant 10-15-23 so why not try something else? Sow some seed already.