SproutSmart
SproutSmart Intelligent Garden Sowing

Zwolsche Krul · Celery

Planting Schedule

Add Zwolsche Krul to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsJan 9th
Last FrostMar 6th
Transplant / Direct Sow OutdoorsFeb 27th
Harvest BeginsMay 18th
Harvest EndsNov 26th

Crop Details

Transplant Conditions: Wait until soil reaches 40°F and nights stay above 28°F before moving outdoors. Harden off for 6 days first.
TraitValue
Days to Maturity80
Sun RequirementsPart Sun
Growth HabitRosette
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)40
Min Night Temp (°F)28
Harden Off (days)6
Expert Note: Start indoors early, keep seedlings evenly moist, and transplant only when nights are consistently warm so the curly foliage develops without stress.