Coriander · Xiamen, Fujian, China
When to plant coriander in Xiamen
Main outdoor window
11-21 Jan
The window this page is built around.
Timed from last spring frost
25 January
In Xiamen, on your chosen risk.
Ready to pick
25 Feb - 22 Mar
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 Xiamen
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 direct
11-21 Jan
Two weeks before your last frost.
Harvest
25 Feb - 22 Mar
Coriander through the year
Against the frost risk in Xiamen
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 Xiamen.
Growing coriander in Xiamen
When should I plant coriander in Xiamen?
Aim for 11-21 Jan in an average year. If you would rather not gamble on the weather, wait until 11-21 Jan - by then frost has finished in nine years out of ten.
When will coriander be ready to harvest in Xiamen?
Expect to start picking around 25 Feb - 22 Mar, 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.