SproutSmart
SproutSmart Intelligent Garden Sowing

American Flag · Leek

Planting Schedule

Add American Flag to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsFeb 9th
Last FrostMar 23rd
Transplant / Direct Sow OutdoorsMar 23rd
Harvest BeginsJul 21st
Harvest EndsNov 12th

Crop Details

Transplant Conditions: Wait until soil reaches 45°F and nights stay above 30°F before moving outdoors. Harden off for 6 days first.
TraitValue
Days to Maturity120
Sun Requirements☀️ Full Sun
Growth HabitUpright
Support NeededNone
Planting DepthNormal
Germination Temp (°F)55
Min Soil Temp (°F)45
Min Night Temp (°F)30
Harden Off (days)6
Expert Note: Because it’s extremely cold-hardy, you can transplant right around last frost for a spring crop or keep it mulched to extend harvest into early spring.