SproutSmart
SproutSmart Intelligent Garden Sowing

Ruby Perfection · Cabbage

Zone 5a Save Garden

Planting Schedule

Add Ruby Perfection to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsApr 10th
Last FrostMay 8th
Transplant / Direct Sow OutdoorsMay 1st
Harvest BeginsJul 25th
Harvest EndsSep 30th

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.
TraitValue
Days to Maturity85
Sun RequirementsFull Sun
Growth HabitRosette
Support NeededNone
Planting DepthNormal
Germination Temp (°F)45
Min Soil Temp (°F)40
Min Night Temp (°F)32
Harden Off (days)6
Expert Note: Start cabbage early and transplant into consistently cool conditions—keeping plants from overheating helps form dense heads.