🌿 Coriander
A cool-weather herb that bolts almost immediately in heat — a summer sowing mostly yields seed.
🌱 This one is in the reference and the planting calendar, but you cannot sow it in the game yet.
What the numbers mean
These are the actual parameters this game runs on. Growth is driven by growing degree days: each day contributes max(0, min(mean temp, 28) − 4), and Coriander is ready when that total reaches 520. That is why the same seed takes a very different number of days in Dublin and in Guangzhou.
| Base temperature | 4°CBelow this, the plant accumulates no growing degree days at all. |
|---|---|
| Degree days to maturity | 520 °C·dThe heat budget it must accumulate before it is ready to pick. |
| Comfortable range | 8–24°CWhere it grows without stress. |
| Frost damage below | -4°CLeaves start taking frost damage below this low. |
| Killed below | -8°CBelow this it does not come back. |
| Heat stress above | 26°CAbove this the plant slows down and stops setting fruit well. |
| Typical time to harvest | 40–55 days |
| Yield per bed | 5 bunches |
Things worth knowing
- Heat and long days send coriander straight to flower, so a summer sowing is really a seed crop.
- Between 10 and 20% of people taste soap in coriander, which traces to a variant in a single smell-receptor gene.
Where and when to sow Coriander
Pick your city to see the months when Coriander scores well against that city's real climate records: