🧅 Chives
The cut-and-come-again windowsill green — one pot feeds a season.
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, 30) − 6), and Chives is ready when that total reaches 380. That is why the same seed takes a very different number of days in Dublin and in Guangzhou.
| Base temperature | 6°CBelow this, the plant accumulates no growing degree days at all. |
|---|---|
| Degree days to maturity | 380 °C·dThe heat budget it must accumulate before it is ready to pick. |
| Comfortable range | 12–26°CWhere it grows without stress. |
| Frost damage below | -20°CLeaves start taking frost damage below this low. |
| Killed below | -30°CBelow this it does not come back. |
| Heat stress above | 30°CAbove this the plant slows down and stops setting fruit well. |
| Typical time to harvest | 25–35 days |
| Yield per bed | 8 bunches |
Things worth knowing
- Chives regrow from the base after cutting: one sowing gives three to five harvests.
- The oniony bite comes from sulfur compounds released only when cells are cut — no cutting, no tears.
Where and when to sow Chives
Pick your city to see the months when Chives scores well against that city's real climate records: