Last frost in Collegno: likely and cautious dates
Reference dates for frost risk in Collegno.
Last frost in Collegno
This page summarizes the historical frost dates that are most useful for deciding when to sow and transplant in Collegno.
Reference dates
| indicator | date |
|---|---|
| Median last frost 0C | April 5 |
| Cautious last frost 0C | April 17 |
| Median last frost 2C | April 18 |
| Cautious last frost 2C | April 23 |
| Cautious first autumn frost 0C | October 28 |
| Cautious first autumn frost 2C | October 16 |
Difference between 0C and 2C
What to sow before the cautious date
- Swiss chard
- Carrot
- Tuscan kale
- Onion
- Pea
- Radish
- Arugula
- Spinach
What to sow after the cautious date
- Garlic
- Swiss chard
- Broccoli
- Carrot
- Tuscan kale
- Cucumber
- Onion
- Green bean
- Fennel
- Strawberry
- Lettuce
- Potato
Sensitive crops
FAQ
When does the main frost risk end in Collegno?
The most cautious date on this page is April 23 on the 2C threshold. For sensitive crops, use it as the reference before moving sowing or transplanting earlier.
Why also look at the 2C threshold?
The median 0C date is April 5, while the cautious 2C date is April 23. The 2C threshold is more cautious for cold nights, inversions, and exposed spots.
How should I adapt the frost date inside Collegno?
No. In Collegno, exposure, elevation, wind, and soil can move real risk earlier or later than the representative municipality point.
Which crops need extra care in Collegno?
In the local rules, the more sensitive crops include: Garlic, Basil, Swiss chard, Broccoli, Carrot, Tuscan kale. For these crops, the cautious date and night protection matter more.