SproutSmart
SproutSmart Intelligent Garden Sowing

Iceberg · Lettuce

Planting Schedule

Add Iceberg to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsFeb 23rd
Last FrostMar 23rd
Transplant / Direct Sow OutdoorsMar 16th
Harvest BeginsMay 25th
Harvest EndsNov 12th

Crop Details

Transplant Conditions: Wait until soil reaches 40°F and nights stay above 35°F before moving outdoors. Harden off for 6 days first.
TraitValue
Days to Maturity70
Sun RequirementsPart Sun
Growth HabitRosette
Support NeededNone
Planting DepthNormal
Germination Temp (°F)65
Min Soil Temp (°F)40
Min Night Temp (°F)35
Harden Off (days)6
Expert Note: For crisp heads like Iceberg, keep soil consistently moist and avoid heat stress—cool conditions produce the densest heads.