SproutSmart
SproutSmart Intelligent Garden Sowing

Chicago Warted Hubbard · Winter Squash

Zone 2b Save Garden

Planting Schedule

Add Chicago Warted Hubbard to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsDirect Sow
Last FrostMay 15th
Transplant / Direct Sow OutdoorsJun 12th
Harvest BeginsSep 15th
Harvest EndsAug 25th

Crop Details

Transplant Conditions: Wait until soil reaches 65°F and nights stay above 55°F before moving outdoors. Harden off for 10 days first.
Direct sow preferred — this crop has sensitive roots and does not transplant well. If starting indoors, use biodegradable pots and disturb roots as little as possible when moving outdoors.
TraitValue
Days to Maturity95
Sun RequirementsFull Sun
Growth HabitVine
Support NeededTrellis
Planting DepthNormal
Germination Temp (°F)85
Min Soil Temp (°F)65
Min Night Temp (°F)55
Harden Off (days)10
Expert Note: For Hubbard-type winter squash, start seeds only if your season is short—otherwise direct-sow after soil warms, and protect seedlings from cool nights early on.