When to plant sweet corn in Vancouver
Sweet corn is frost-tender, so every date keys off Vancouver's last spring frost of Mar 31.
Step 1 · Sow
Direct sow outdoors
Jun 6 – Jun 27
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Aug 5 – Sep 14
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 100 d
Vancouver's 221-day season leaves this much room.
Sweet corn on Vancouver'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 31
NOV 7
Common questions
When can I sow sweet corn outdoors in Vancouver?
Direct-sow around early June (Jun 6–Jun 27) in Vancouver, based on its local frost dates. Confidence 82%.
When will sweet corn be ready to harvest in Vancouver?
Expect to harvest from around early August (Aug 5–Sep 14) in Vancouver, based on its local frost dates. Confidence 76%.
How long is the growing season in Vancouver?
Vancouver has roughly 221 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 Vancouver's frost dates.
Confidence 85/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.