SproutSmart
SproutSmart Intelligent Garden Sowing

Rubine · Brussels Sprout

Zone 1b Save Garden

Planting Schedule

Add Rubine to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsMay 4th
Last FrostJun 1st
Transplant / Direct Sow OutdoorsJun 1st
Harvest BeginsAug 25th
Harvest EndsAug 1st

Crop Details

Transplant Conditions: Wait until soil reaches 45°F and nights stay above 35°F before moving outdoors. Harden off for 6 days first.
TraitValue
Days to Maturity85
Sun RequirementsFull Sun
Growth HabitUpright
Support NeededNone
Planting DepthNormal
Germination Temp (°F)45
Min Soil Temp (°F)45
Min Night Temp (°F)35
Harden Off (days)6
Expert Note: For best flavor and compact heads, keep soil evenly moist and avoid heat stress—cool conditions help Brussels sprouts size up properly.