Coriander · Brooklyn, New York, United States
When to plant coriander in Brooklyn
Main outdoor window
15-25 Mar
The window this page is built around.
Timed from last spring frost
29 March
In Brooklyn, on your chosen risk.
Ready to pick
29 Apr - 24 May
If you plant at the start of the window.
The average last frost. Half of all years are later than this.
Step by step in Brooklyn
Each window is a range, not a single day. Earlier in the range buys you a longer season; later in it buys you a safer one.
Sow for autumn
19 Aug - 9 Sep
Counting back 84 days from your first frost so the crop matures in time.
Sow direct
15-25 Mar
Two weeks before your last frost.
Harvest
29 Apr - 24 May
Coriander through the year
Against the frost risk in Brooklyn
Why these dates
Sow every two weeks from two weeks before last frost. The autumn sowing lasts far longer than any summer one, and in mild climates overwinters.
Takes -5C and grows happily in cool weather. Heat, not frost, is what ends a coriander plant.
Seed packets and extension guides express timing as weeks either side of the last spring frost, because that is the only reference point that travels. Coriander are timed for direct sowing 2 weeks before it, and this page simply resolves those offsets against the frost date computed for Brooklyn.
The median frost-free season here is 249 days, against 45 to 70 days to maturity for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.
Growing coriander in Brooklyn
When should I plant coriander in Brooklyn?
Aim for 15-25 Mar in an average year. If you would rather not gamble on the weather, wait until 25 Mar - 4 Apr - by then frost has finished in nine years out of ten.
When will coriander be ready to harvest in Brooklyn?
Expect to start picking around 29 Apr - 24 May, based on 45 to 70 days to maturity from the planting date calculated for this location.
How much frost will coriander tolerate?
Takes -5C and grows happily in cool weather. Heat, not frost, is what ends a coriander plant.