SproutSmart
SproutSmart Intelligent Garden Sowing

Imperial Star · Artichoke

Zone 7a Save Garden

Planting Schedule

Add Imperial Star to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsDirect Sow
Last FrostApr 20th
Transplant / Direct Sow OutdoorsApr 20th
Harvest BeginsAug 18th
Harvest EndsOct 20th

Crop Details

Transplant Conditions: Wait until soil reaches 40°F and nights stay above 32°F before moving outdoors. Harden off for 7 days first.
TraitValue
Days to Maturity120
Sun RequirementsFull Sun
Growth HabitUpright
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)40
Min Night Temp (°F)32
Harden Off (days)7
Expert Note: Start plants early for best first-year heads, keep soil evenly moist, and harvest once buds feel tight and firm before the scales loosen.