Onion Plants

Short-Day Onions
  • Start bulbing process when daylength reaches 10-12 hours
  • Mature in 110 days when planted in the south during winter or early spring
  • Mature in 75 days when planted in northern states in late spring but will not get very large
  • The earlier you plant them, the larger they get
  • Best suited for latitudes of 25-35
Intermediate-Day Onions
  • Start bulbing process when daylength reaches 12-14 hours
  • Will produce nice-sized bulbs unless you live in far south Florida or south Texas
  • Mature in 110 days when planted at the proper time
  • Exceptionally sweet
  • Best suited for latitudes of 32-42
Long-Day Onions
  • Start bulbing process when daylength reaches 14-16 hours
  • Do extremely well in northern states
  • Sweet, storage, and specialty long day varieties available
  • Excellent for long storage
  • Best suited for latitudes of 37-47