SproutSmart
SproutSmart Intelligent Garden Sowing

Marathon · Broccoli

Planting Schedule

Add Marathon to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsApr 10th
Last FrostMay 8th
Transplant / Direct Sow OutdoorsMay 8th
Harvest BeginsJul 22nd
Harvest EndsSep 30th

Crop Details

Transplant Conditions: Wait until soil reaches 40°F and nights stay above 35°F before moving outdoors. Harden off for 6 days first.
TraitValue
Days to Maturity75
Sun RequirementsFull Sun
Growth HabitUpright
Support NeededNone
Planting DepthNormal
Germination Temp (°F)45
Min Soil Temp (°F)40
Min Night Temp (°F)35
Harden Off (days)6
Expert Note: Start indoors for earlier uniform heads, then transplant only when nights are reliably cool but days are warming to avoid premature flowering.