SproutSmart
SproutSmart Intelligent Garden Sowing

Carbon · Tomato

Zone 3b Save Garden

Planting Schedule

Add Carbon to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsMar 31st
Last FrostMay 19th
Transplant / Direct Sow OutdoorsJul 14th
Harvest BeginsOct 12th
Harvest EndsSep 21st

Crop Details

Transplant Conditions: Wait until soil reaches 60°F and nights stay above 50°F before moving outdoors. Harden off for 10 days first.
TraitValue
Days to Maturity90
Sun RequirementsFull Sun
Growth HabitDeterminate
Support NeededCage
Planting DepthDeep
Germination Temp (°F)75
Min Soil Temp (°F)60
Min Night Temp (°F)50
Harden Off (days)10
Expert Note: For Carbon’s long beefsteak season, start early and transplant only once soil is reliably warm to avoid cold-stunting.