SproutSmart
SproutSmart Intelligent Garden Sowing

Coastal Star · Lettuce

Zone 1b Save Garden

Planting Schedule

Add Coastal Star to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsMay 4th
Last FrostJun 1st
Transplant / Direct Sow OutdoorsJun 1st
Harvest BeginsJul 31st
Harvest EndsAug 1st

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 Maturity60
Sun RequirementsPart Sun
Growth HabitRosette
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)40
Min Night Temp (°F)35
Harden Off (days)6
Expert Note: Because 'Coastal Star' tolerates heat better than many romaines, set transplants as soon as nights are reliably above the low 40s to avoid slow growth and oversized heads later.