🌿 Rocket
A fast, peppery leaf that turns bitter and bolts the moment it gets warm. A spring and autumn crop.
🌱 This one is in the reference and the planting calendar, but you cannot sow it in the game yet.
Rocket at a glance
Is Rocket frost tolerant?
Yes — it is one of the hardier crops. It shrugs off frost down to -6°C and is only killed below -12°C.
What temperature does Rocket grow best in?
It grows best between 6 and 22°C. Below 4°C it stops growing altogether, and above 24°C it slows down.
How many days does Rocket take to mature?
About 30–45 days. That is a typical figure: it needs roughly 370 °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 Rocket a cool-season or warm-season crop?
A cool-season crop. It does best in the mild weather of spring and autumn (and through winter where winters are mild), and slows down in summer heat above 24°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, 26) − 4), and Rocket is ready when that total reaches 370. 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 | 370 °C·dThe heat budget it must accumulate before it is ready to pick. |
| Comfortable range | 6–22°CWhere it grows without stress. |
| Frost damage below | -6°CLeaves start taking frost damage below this low. |
| Killed below | -12°CBelow this it does not come back. |
| Heat stress above | 24°CAbove this the plant slows down and stops setting fruit well. |
| Typical time to harvest | 30–45 days |
| Yield per bed | 6 bunches |
Things worth knowing
- The pepperiness comes from glucosinolates — the hotter the weather, the sharper the leaf.
- It often goes from seed to plate in under a month, making it the ideal gap-filler.
Where and when to sow Rocket
Pick your city to see the months when Rocket scores well against that city's real climate records: