Japanese Red · Sweet Potato
Planting Schedule
Add Japanese Red to your garden to build a schedule and get reminders.
| Milestone | Date |
|---|---|
| Start Indoors | Direct Sow |
| Last Frost | Jun 15th |
| Transplant / Direct Sow Outdoors | Jun 15th |
| Harvest Begins | Sep 28th |
| Harvest Ends | Jul 15th |
Crop Details
Transplant Conditions:
Wait until soil reaches 60°F
and nights stay above 55°F
before moving outdoors.
| Trait | Value |
|---|---|
| Days to Maturity | 105 |
| Sun Requirements | Full Sun |
| Growth Habit | Vine |
| Support Needed | None |
| Planting Depth | Normal |
| Germination Temp (°F) | 80 |
| Min Soil Temp (°F) | 60 |
| Min Night Temp (°F) | 55 |
| Harden Off (days) | Not Required |
Expert Note: Sweet potatoes are started from slips (not seed) and must only be planted after soil is reliably warm—cool soil is the main reason for poor stands.