SproutSmart
SproutSmart Intelligent Garden Sowing

White Grano · Onion

Zone 10a Save Garden

Planting Schedule

Add White Grano to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsNov 7th
Last FrostJan 16th
Transplant / Direct Sow OutdoorsJan 2nd
Harvest BeginsApr 7th
Harvest EndsDec 19th

Crop Details

Transplant Conditions: Wait until soil reaches 45°F and nights stay above 28°F before moving outdoors. Harden off for 6 days first.
TraitValue
Days to Maturity95
Sun RequirementsFull Sun
Growth HabitBulbing
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)45
Min Night Temp (°F)28
Harden Off (days)6
Expert Note: For sweet, mild white onions, keep the soil consistently moist after transplanting and avoid letting seedlings dry out before bulbing begins.