SproutSmart
SproutSmart Intelligent Garden Sowing

Kossak · Kohlrabi

Planting Schedule

Add Kossak to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsMay 4th
Last FrostJun 1st
Transplant / Direct Sow OutdoorsJun 1st
Harvest BeginsAug 15th
Harvest EndsAug 1st

Crop Details

Transplant Conditions: Wait until soil reaches 40°F and nights stay above 30°F before moving outdoors. Harden off for 6 days first.
TraitValue
Days to Maturity75
Sun Requirements☀️ Full Sun
Growth HabitRosette
Support NeededNone
Planting DepthNormal
Germination Temp (°F)45
Min Soil Temp (°F)40
Min Night Temp (°F)30
Harden Off (days)6
Expert Note: For best texture, keep consistent moisture and harvest kohlrabi when bulbs are tennis-ball to fist-size—overgrown bulbs can become fibrous even if they stay flavorful.