SproutSmart
SproutSmart Intelligent Garden Sowing

Red Burgermaster · Onion

Zone 12a Save Garden

Planting Schedule

Add Red Burgermaster to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsDirect Sow
Last FrostJan 1st
Transplant / Direct Sow OutdoorsDec 25th
Harvest BeginsApr 14th
Harvest EndsDec 31st

Crop Details

Transplant Conditions: Wait until soil reaches 45°F and nights stay above 35°F before moving outdoors. Harden off for 7 days first.
TraitValue
Days to Maturity110
Sun RequirementsFull Sun
Growth HabitBulbing
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)45
Min Night Temp (°F)35
Harden Off (days)7
Expert Note: For the sweetest, best “grill-slice” bulbs, keep plants evenly watered and avoid heavy nitrogen once bulbs begin to swell.