When to plant cilantro / coriander in Montreal
Cilantro / Coriander is cold-hardy, so every date keys off Montreal's frost dates of May 11.
Step 1 · Sow
Direct sow outdoors
Apr 27 – May 18
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 11 – Jul 6
Picking runs until conditions turn against the crop.
Window
Days to maturity
45 – 70 d
Montreal's 142-day season leaves this much room.
Cilantro / Coriander on Montreal'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
MAY 11
SEP 30
Common questions
When can I sow cilantro / coriander outdoors in Montreal?
Direct-sow around late April (Apr 27–May 18) in Montreal, based on its local frost dates. Confidence 86%.
When will cilantro / coriander be ready to harvest in Montreal?
Expect to harvest from around mid June (Jun 11–Jul 6) in Montreal, based on its local frost dates. Confidence 77%.
How long is the growing season in Montreal?
Montreal has roughly 142 frost-free days, which is enough time to grow cilantro / coriander to maturity outdoors.
The rule of thumb
Sow cilantro / coriander as soon as the soil is workable — it tolerates cool weather and light frost. Every date on this page is derived from that rule and Montreal's frost dates.
Confidence 86/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.