Walla Walla · Onion
Planting Schedule
Add Walla Walla to your garden to build a schedule and get reminders.
| Milestone | Date |
|---|---|
| Start Indoors | Direct Sow |
| Last Frost | Mar 23rd |
| Transplant / Direct Sow Outdoors | Mar 23rd |
| Harvest Begins | Jun 21st |
| Harvest Ends | Nov 12th |
Crop Details
Transplant Conditions:
Wait until soil reaches 50°F
and nights stay above 28°F
before moving outdoors.
Harden off for 7 days first.
| Trait | Value |
|---|---|
| Days to Maturity | 90 |
| Sun Requirements | Full Sun |
| Growth Habit | Bulbing |
| Support Needed | None |
| Planting Depth | Normal |
| Germination Temp (°F) | 70 |
| Min Soil Temp (°F) | 50 |
| Min Night Temp (°F) | 28 |
| Harden Off (days) | 7 |
Expert Note: For Walla Walla (sweet, fresh-eating onion), prioritize consistent moisture and a sunny site, then harvest promptly since storage life is short.