SproutSmart
SproutSmart Intelligent Garden Sowing

Red Jewel · Red Cabbage

Zone 9a Save Garden

Planting Schedule

Add Red Jewel to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsFeb 6th
Last FrostMar 6th
Transplant / Direct Sow OutdoorsMar 6th
Harvest BeginsMay 20th
Harvest EndsNov 26th

Crop Details

Transplant Conditions: Wait until soil reaches 45°F and nights stay above 32°F before moving outdoors. Harden off for 6 days first.
TraitValue
Days to Maturity75
Sun RequirementsFull Sun
Growth HabitRosette
Support NeededNone
Planting DepthNormal
Germination Temp (°F)75
Min Soil Temp (°F)45
Min Night Temp (°F)32
Harden Off (days)6
Expert Note: Start indoors in cool conditions for tight heads, then transplant just before the weather warms to keep growth steady and prevent loose heads.