SproutSmart
SproutSmart Intelligent Garden Sowing

Paris Island Cos · Lettuce

Zone 5a Save Garden

Planting Schedule

Add Paris Island Cos to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsApr 10th
Last FrostMay 8th
Transplant / Direct Sow OutdoorsMay 8th
Harvest BeginsJul 12th
Harvest EndsSep 30th

Crop Details

Transplant Conditions: Wait until soil reaches 40°F and nights stay above 35°F before moving outdoors. Harden off for 5 days first.
TraitValue
Days to Maturity65
Sun RequirementsPart Sun
Growth HabitRosette
Support NeededNone
Planting DepthSurface
Germination Temp (°F)70
Min Soil Temp (°F)40
Min Night Temp (°F)35
Harden Off (days)5
Expert Note: For best crispness with Paris Island Cos, keep soil evenly moist and aim for cool-to-moderate weather; it’s bolt-resistant but still benefits from light afternoon shade in hot spells.