When to plant cilantro / coriander in Toronto
Cilantro / Coriander is cold-hardy, so every date keys off Toronto's frost dates of May 3.
Step 1 · Sow
Direct sow outdoors
Apr 25 – May 16
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 9 – Jul 4
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Jul 3 – Jul 17
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Aug 24 – Sep 18
Maturity window for the second sowing.
Window
Days to maturity
45 – 70 d
Toronto's 160-day season leaves this much room.
Cilantro / Coriander on Toronto'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 3
OCT 12
Common questions
When can I sow cilantro / coriander outdoors in Toronto?
Direct-sow around late April (Apr 25–May 16) in Toronto, based on its local frost dates. Confidence 81%.
When will cilantro / coriander be ready to harvest in Toronto?
Expect to harvest from around early June (Jun 9–Jul 4) in Toronto, based on its local frost dates. Confidence 75%.
Can I plant cilantro / coriander in autumn in Toronto?
Yes — Toronto supports a second, autumn sowing of cilantro / coriander around early July (Jul 3–Jul 17), timed to mature before the first fall frost.
How long is the growing season in Toronto?
Toronto has roughly 160 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 Toronto's frost dates.
Confidence 83/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.