Mammoth Red Rock · Red Cabbage
Planting Schedule
Add Mammoth Red Rock to your garden to build a schedule and get reminders.
| Milestone | Date |
|---|---|
| Start Indoors | Apr 15th |
| Last Frost | May 13th |
| Transplant / Direct Sow Outdoors | May 6th |
| Harvest Begins | Jul 30th |
| Harvest Ends | Sep 27th |
Crop Details
Transplant Conditions:
Wait until soil reaches 40°F
and nights stay above 32°F
before moving outdoors.
Harden off for 6 days first.
| Trait | Value |
|---|---|
| Days to Maturity | 85 |
| Sun Requirements | Full Sun |
| Growth Habit | Rosette |
| Support Needed | None |
| Planting Depth | Normal |
| Germination Temp (°F) | 45 |
| Min Soil Temp (°F) | 40 |
| Min Night Temp (°F) | 32 |
| Harden Off (days) | 6 |
Expert Note: Start indoors for a uniform head set, then transplant into cool conditions (cabbage dislikes heat) and keep moisture steady to prevent split heads.