When to plant cilantro / coriander in Montreal
Cilantro / Coriander is cold-hardy, so every date keys off Montreal's frost dates of Apr 19.
Step 1 · Sow
Direct sow outdoors
Apr 26 – May 17
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 10 – Jul 5
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Jul 19 – Aug 2
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Sep 9 – Oct 4
Maturity window for the second sowing.
Window
Days to maturity
45 – 70 d
Montreal's 192-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
APR 19
OCT 28
Common questions
When can I sow cilantro / coriander outdoors in Montreal?
Direct-sow around late April (Apr 26–May 17) in Montreal, based on its local frost dates. Confidence 82%.
When will cilantro / coriander be ready to harvest in Montreal?
Expect to harvest from around early June (Jun 10–Jul 5) in Montreal, based on its local frost dates. Confidence 76%.
Can I plant cilantro / coriander in autumn in Montreal?
Yes — Montreal supports a second, autumn sowing of cilantro / coriander around mid July (Jul 19–Aug 2), timed to mature before the first fall frost.
How long is the growing season in Montreal?
Montreal has roughly 192 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 85/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.