Super Star is a mid-day or day length neutral white onion, which means that it can be grown
from seed anywhere in North America. It's 20 days earlier to mature than other White Sweet Spanish types with no sacrifice in bulb size. The globe-shaped bulbs are attractive, have a mild, sweet flavor and retain their skins well. Super Star keeps well for a mild white onion, but like other whites, it’s not recommended for long-term storage.
Soil temperature: 60 - 65 degrees fahrenheit
Seeding depth: 0.25 - 0.5 inches
Germination days: 6 - 12 days
Grow on temperature day: 55 - 60 degrees fahrenheit
Weeks indoor: 5 - 8 weeks
Maturation days: 100 days