SproutSmart
SproutSmart Intelligent Garden Sowing

Winner F1 · Kohlrabi

Zone 1b Save Garden

Planting Schedule

Add Winner F1 to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsMay 4th
Last FrostJun 1st
Transplant / Direct Sow OutdoorsMay 25th
Harvest BeginsJul 24th
Harvest EndsAug 1st

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 Maturity60
Sun RequirementsFull Sun
Growth HabitUpright
Support NeededNone
Planting DepthNormal
Germination Temp (°F)75
Min Soil Temp (°F)40
Min Night Temp (°F)32
Harden Off (days)6
Expert Note: For sweet, crisp kohlrabi, keep soil evenly moist and harvest when bulbs are about 2–3 in (5–7 cm) across to avoid woody texture.