When to plant cilantro / coriander in Baltimore
Cilantro / Coriander is cold-hardy, so every date keys off Baltimore's frost dates of Mar 21.
Step 1 · Sow
Direct sow outdoors
Mar 18 – Apr 8
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 2 – May 27
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Aug 11 – Aug 25
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Oct 2 – Oct 27
Maturity window for the second sowing.
Window
Days to maturity
45 – 70 d
Baltimore's 249-day season leaves this much room.
Cilantro / Coriander on Baltimore'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
MAR 21
NOV 27
Common questions
When can I sow cilantro / coriander outdoors in Baltimore?
Direct-sow around mid March (Mar 18–Apr 8) in Baltimore, based on its local frost dates. Confidence 81%.
When will cilantro / coriander be ready to harvest in Baltimore?
Expect to harvest from around early May (May 2–May 27) in Baltimore, based on its local frost dates. Confidence 76%.
Can I plant cilantro / coriander in autumn in Baltimore?
Yes — Baltimore supports a second, autumn sowing of cilantro / coriander around mid August (Aug 11–Aug 25), timed to mature before the first fall frost.
How long is the growing season in Baltimore?
Baltimore has roughly 249 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 Baltimore's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.