SproutSmart
SproutSmart Intelligent Garden Sowing

Long Island Improved Brussels Sprout · Brussels Sprout

Zone 10a Save Garden

Planting Schedule

Add Long Island Improved Brussels Sprout to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsDec 12th
Last FrostJan 16th
Transplant / Direct Sow OutdoorsJan 16th
Harvest BeginsApr 16th
Harvest EndsDec 19th

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 Maturity90
Sun RequirementsFull Sun
Growth HabitUpright
Support NeededNone
Planting DepthNormal
Germination Temp (°F)45
Min Soil Temp (°F)40
Min Night Temp (°F)28
Harden Off (days)6
Expert Note: For best flavor, let Brussels sprout through a light frost before heavy harvests—cool weather boosts sweetness.