SproutSmart
SproutSmart Intelligent Garden Sowing

Patterson F1 · Onion

Planting Schedule

Add Patterson F1 to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsJan 12th
Last FrostMar 23rd
Transplant / Direct Sow OutdoorsMar 16th
Harvest BeginsJul 4th
Harvest EndsNov 12th

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 Requirements☀️ Full 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 best long-term storage bulbs, keep plants in full sun and avoid nitrogen overfeeding—thick necks cure poorly.