When to plant sweet corn in Marseille
Sweet corn is frost-tender, so every date keys off Marseille's last spring frost of Mar 15.
Step 1 · Sow
Direct sow outdoors
Mar 22 – Apr 12
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 21 – Jun 30
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 100 d
Marseille's 261-day season leaves this much room.
Sweet corn on Marseille's growing year
Frost-bounded season with crops mapped onto the 12-month axis.
Frost risk Growing Harvest
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
FROST
FROST
HARVEST
MAR 15
DEC 1
Common questions
When can I sow sweet corn outdoors in Marseille?
Direct-sow around late March (Mar 22–Apr 12) in Marseille, based on its local frost dates. Confidence 84%.
When will sweet corn be ready to harvest in Marseille?
Expect to harvest from around late May (May 21–Jun 30) in Marseille, based on its local frost dates. Confidence 76%.
How long is the growing season in Marseille?
Marseille has roughly 261 frost-free days, which is enough time to grow sweet corn to maturity outdoors.
The rule of thumb
Sow sweet corn 6–8 weeks before your last spring frost; plant out 2–3 weeks after it. Every date on this page is derived from that rule and Marseille's frost dates.
Confidence 84/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.