Thomas Jefferson grew several types of onion at Monticello, including Madeira, Spanish, Tree, and White. The Red Wethersfield Onion is a 19th-century variety that derives its name from Wethersfield, Connecticut, where it reputably originated. It forms a large, flattened bulb 5" in diameter with purplish white, mildly pungent flesh.
Sow seeds indoors in mid to late winter, then harden off and transplant to moist but well-drained, fertile soil 4-6 weeks before the last frost date. Harvest when the foliage begins to turn yellow and fall over. Long-day type. Approximately 40-50 seeds per packet.
Details
Genus | Allium |
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Species | cepa cv. |
Exposure | Full Sun | Planting Method | Transplant | Planting Depth | 1/4" |
Days to Emerge | 6 - 16 |
Plant Spacing | 3 - 8" apart; rows 12 - 16" |
Habit | 9 - 15" H |