SproutSmart
SproutSmart Intelligent Garden Sowing

True Siberian · Kale

Planting Schedule

Add True Siberian to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsMar 4th
Last FrostApr 1st
Transplant / Direct Sow OutdoorsMar 25th
Harvest BeginsMay 19th
Harvest EndsNov 5th

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 Maturity55
Sun Requirements☀️ Full Sun
Growth HabitRosette
Support NeededNone
Planting DepthNormal
Germination Temp (°F)40
Min Soil Temp (°F)40
Min Night Temp (°F)28
Harden Off (days)6
Expert Note: For this very cold-hardy kale, prioritize steady moisture and harvest the sweetest, tender leaves after frost as flavor improves with chill.