SproutSmart
SproutSmart Intelligent Garden Sowing

Blue Jubilee Gem · Cornflower

Zone 5b Save Garden

Planting Schedule

Add Blue Jubilee Gem to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsDirect Sow
Last FrostMay 4th
Transplant / Direct Sow OutdoorsMay 4th
Harvest BeginsJul 8th
Harvest EndsOct 5th

Crop Details

Transplant Conditions: Wait until soil reaches 55°F and nights stay above 45°F before moving outdoors.
TraitValue
Days to Maturity65
Sun RequirementsFull Sun
Growth HabitBush
Support NeededNone
Planting DepthSurface
Germination Temp (°F)60
Min Soil Temp (°F)55
Min Night Temp (°F)45
Harden Off (days)Not Required
Expert Note: For the bluest, longest blooms, sow in full sun and avoid rich nitrogen—thin/space plants early to keep the dwarf habit compact.