SproutSmart
SproutSmart Intelligent Garden Sowing

Korean Purple · Sweet Potato

Zone 6a Save Garden

Planting Schedule

Add Korean Purple to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsDirect Sow
Last FrostMay 1st
Transplant / Direct Sow OutdoorsJun 26th
Harvest BeginsSep 19th
Harvest EndsOct 10th

Crop Details

Transplant Conditions: Wait until soil reaches 60°F and nights stay above 55°F before moving outdoors.
TraitValue
Days to Maturity85
Sun RequirementsFull Sun
Growth HabitVine
Support NeededNone
Planting DepthNormal
Germination Temp (°F)80
Min Soil Temp (°F)60
Min Night Temp (°F)55
Harden Off (days)Not Required
Expert Note: Start seeds early for a fast start, but only transplant once soil is reliably warm (60°F+) and nights are staying above ~50°F to prevent stunting.