Sets will normally be Red Wetherfield a very long day storage onion. Since sets are second year onions they are very prone to bolt. Only storage onions keep well enought to use as sets. Onions are pretty easy, but timing is critical. Long day onions need the summer soltice daylight hours to trigger bulbing. In the south the soil temps at that time at too high for onions most years. We have had a cool wet June this year so my long Day Spanish onions (Golden Grande) are bulbing up. They don't require as much daylight as Red Wetherfield tho.
