🥬 Celery
A long season and a very thirsty one — let it dry out and you get hollow, bitter stalks.
🌱 This one is in the reference and the planting calendar, but you cannot sow it in the game yet.
Celery at a glance
Is Celery frost tolerant?
Yes, through light frosts. Damage starts at -3°C and it is killed below -7°C.
What temperature does Celery grow best in?
It grows best between 8 and 24°C. Below 4°C it stops growing altogether, and above 28°C it slows down.
How many days does Celery take to mature?
About 100–130 days. That is a typical figure: it needs roughly 1380 °C·d of warmth above 4°C, so a warm season gets it there sooner and a cool one later. The city calendars below give the sow and harvest dates for each place.
Is Celery a cool-season or warm-season crop?
A cool-season crop. It does best in the mild weather of spring and autumn, and slows down in summer heat above 28°C.
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 Celery is ready when that total reaches 1380. 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 | 1380 °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 | -3°CLeaves start taking frost damage below this low. |
| Killed below | -7°CBelow this it does not come back. |
| Heat stress above | 28°CAbove this the plant slows down and stops setting fruit well. |
| Typical time to harvest | 100–130 days |
| Yield per bed | 4 plants |
Things worth knowing
- Wild celery grows in marshes, which is why the garden crop is so unforgiving about dry spells — one drought gives hollow stems.
- It was a medicinal and funerary plant until seventeenth-century Italians bred it into a vegetable.
Where and when to sow Celery
Pick your city to see the months when Celery scores well against that city's real climate records: