SproutSmart
SproutSmart Intelligent Garden Sowing

Tokyo Long White · Onion

Planting Schedule

Add Tokyo Long White to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsMar 13th
Last FrostApr 10th
Transplant / Direct Sow OutdoorsApr 3rd
Harvest BeginsJun 2nd
Harvest EndsOct 28th

Crop Details

Transplant Conditions: Wait until soil reaches 45°F and nights stay above 35°F before moving outdoors. Harden off for 5 days first.
TraitValue
Days to Maturity60
Sun Requirements☀️ Full Sun
Growth HabitUpright
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)45
Min Night Temp (°F)35
Harden Off (days)5
Expert Note: For best long, tender stalks, keep soil evenly moist and avoid letting seedlings dry out early—then thin to prevent overcrowding.