SproutSmart
SproutSmart Intelligent Garden Sowing

Okinawan · Sweet Potato

Zone 13b Save Garden

Planting Schedule

Add Okinawan to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsDirect Sow
Last FrostJan 1st
Transplant / Direct Sow OutdoorsFeb 26th
Harvest BeginsJun 11th
Harvest Ends

Crop Details

Transplant Conditions: Wait until soil reaches 65°F and nights stay above 55°F before moving outdoors. Harden off for 10 days first.
Direct sow preferred — this crop has sensitive roots and does not transplant well. If starting indoors, use biodegradable pots and disturb roots as little as possible when moving outdoors.
TraitValue
Days to Maturity105
Sun RequirementsFull Sun
Growth HabitVine
Support NeededNone
Planting DepthNormal
Germination Temp (°F)80
Min Soil Temp (°F)65
Min Night Temp (°F)55
Harden Off (days)10
Expert Note: For Okinawan (often treated like sweet potato/Ipomoea-type slips), use only heat-warmed soils (and consider black plastic) so vines establish quickly for the long season this crop needs.