April in Biella
What to plant in April in Biella
Direct sowing, recommended transplants, and average climate risks for a vegetable garden in Biella in April.
Operational summary
Crop actions
| Action | Crops | Success probability |
|---|---|---|
| Direct sowing10 crops | Swiss chard, Carrot, Tuscan kale, Onion, Lettuce, Potato, Pea, Radish, Arugula, Spinach | High82.8% |
| Start indoors8 crops | Broccoli, Tuscan kale, Onion, Fennel, Strawberry, Lettuce, Rosemary, Sage | High81.5% |
| Transplants5 crops | Broccoli, Tuscan kale, Onion, Strawberry, Lettuce | High84.6% |
| Wait1 crop | Parsley | Medium60% |
Direct sowing (10)
Swiss chardwindow: from April 20 to April 30harvest: from June 8 to June 18›
Carrotwindow: from April 20 to April 30harvest: from June 18 to June 28›
Tuscan kalewindow: from April 17 to April 30harvest: from June 10 to June 23›
Onionwindow: from April 1 to April 30harvest: from June 29 to July 28›
Lettucewindow: from April 24 to April 30harvest: from May 28 to June 3›
Potatowindow: from April 24 to April 30harvest: from July 22 to July 28›
Peawindow: from April 17 to April 30harvest: from June 10 to June 23›
Radishwindow: from April 17 to April 30harvest: from May 11 to May 24›
Start indoors (8)
Broccolistart indoors: March 13harvest: from June 22 to October 19›
Tuscan kalestart indoors: March 13harvest: from June 10 to November 3›
Onionstart indoors: January 14harvest: from June 28 to November 18›
Fennelstart indoors: April 11harvest: from July 14 to October 19›
Strawberrystart indoors: March 23harvest: from June 18 to November 1›
Lettucestart indoors: March 27harvest: from May 28 to October 19›
Rosemarystart indoors: April 10harvest: from July 20 to October 19›
Sagestart indoors: March 24harvest: from July 3 to October 19›
Transplants (5)
Broccoliwindow: from April 24 to April 30harvest: from June 22 to June 28›
Tuscan kalewindow: from April 17 to April 30harvest: from June 10 to June 23›
Onionwindow: from April 1 to April 30harvest: from June 29 to July 28›
Strawberrywindow: from April 20 to April 30harvest: from June 18 to June 28›
Lettucewindow: from April 24 to April 30harvest: from May 28 to June 3›
Wait (1)
Crops for this month
| Action | Crops | Success probability |
|---|---|---|
| Direct sowing10 crops | Swiss chardwindow: from April 20 to April 30harvest: from June 8 to June 18Carrotwindow: from April 20 to April 30harvest: from June 18 to June 28Tuscan kalewindow: from April 17 to April 30harvest: from June 10 to June 23Onionwindow: from April 1 to April 30harvest: from June 29 to July 28Lettucewindow: from April 24 to April 30harvest: from May 28 to June 3Potatowindow: from April 24 to April 30harvest: from July 22 to July 28Peawindow: from April 17 to April 30harvest: from June 10 to June 23Radishwindow: from April 17 to April 30harvest: from May 11 to May 24Arugulawindow: from April 17 to April 30harvest: from May 11 to May 24Spinachwindow: from April 17 to April 30harvest: from May 21 to June 3 | High82.8% |
| Start indoors8 crops | Broccolistart indoors: March 13harvest: from June 22 to October 19Tuscan kalestart indoors: March 13harvest: from June 10 to November 3Onionstart indoors: January 14harvest: from June 28 to November 18Fennelstart indoors: April 11harvest: from July 14 to October 19Strawberrystart indoors: March 23harvest: from June 18 to November 1Lettucestart indoors: March 27harvest: from May 28 to October 19Rosemarystart indoors: April 10harvest: from July 20 to October 19Sagestart indoors: March 24harvest: from July 3 to October 19 | High81.5% |
| Transplants5 crops | Broccoliwindow: from April 24 to April 30harvest: from June 22 to June 28Tuscan kalewindow: from April 17 to April 30harvest: from June 10 to June 23Onionwindow: from April 1 to April 30harvest: from June 29 to July 28Strawberrywindow: from April 20 to April 30harvest: from June 18 to June 28Lettucewindow: from April 24 to April 30harvest: from May 28 to June 3 | High84.6% |
| Wait1 crop | Parsleywindow: from April 28 to April 30harvest: from July 16 to July 18 | Medium60% |
Direct sowing (10)
Swiss chardwindow: from April 20 to April 30harvest: from June 8 to June 18›
Carrotwindow: from April 20 to April 30harvest: from June 18 to June 28›
Tuscan kalewindow: from April 17 to April 30harvest: from June 10 to June 23›
Onionwindow: from April 1 to April 30harvest: from June 29 to July 28›
Lettucewindow: from April 24 to April 30harvest: from May 28 to June 3›
Potatowindow: from April 24 to April 30harvest: from July 22 to July 28›
Peawindow: from April 17 to April 30harvest: from June 10 to June 23›
Radishwindow: from April 17 to April 30harvest: from May 11 to May 24›
Start indoors (8)
Broccolistart indoors: March 13harvest: from June 22 to October 19›
Tuscan kalestart indoors: March 13harvest: from June 10 to November 3›
Onionstart indoors: January 14harvest: from June 28 to November 18›
Fennelstart indoors: April 11harvest: from July 14 to October 19›
Strawberrystart indoors: March 23harvest: from June 18 to November 1›
Lettucestart indoors: March 27harvest: from May 28 to October 19›
Rosemarystart indoors: April 10harvest: from July 20 to October 19›
Sagestart indoors: March 24harvest: from July 3 to October 19›
Transplants (5)
Broccoliwindow: from April 24 to April 30harvest: from June 22 to June 28›
Tuscan kalewindow: from April 17 to April 30harvest: from June 10 to June 23›
Onionwindow: from April 1 to April 30harvest: from June 29 to July 28›
Strawberrywindow: from April 20 to April 30harvest: from June 18 to June 28›
Lettucewindow: from April 24 to April 30harvest: from May 28 to June 3›
Wait (1)
Local climate
Altitude and microclimates
- Altitude range
- 317-2370 m a.s.l.
- Total altitude difference
- 2053 m
- Standard deviation
- 551.63 m
- Main altitude bands
- 300-599 m (53.4%), 1500-1999 m (13.52%)
In a municipality with this much terrain variation, frost, soil warming, and heat stress can differ between valley or lowland gardens and higher hamlets. Use this month's windows as an average guide and adjust sowing and transplanting to the garden's actual altitude.
Method and limits
Which crop has the clearest window in April in Biella?
Start with Swiss chard for direct sowing during from April 20 to April 30. The estimated harvest is from June 8 to June 18 and the best estimated success rate is 80%.
Should I use indoor seed starting in April in Biella?
For Broccoli, the useful indoor seed period is from March 13 to July 10. The expected transplanting window is from April 24 to August 21 and it is best to start seedlings 42 days earlier.
What should I watch in April in Biella?
Check irrigation and soil moisture: the average dry spell reaches 9.2 days, even with average rain of 83 mm. Monthly averages: minimum 5.65 °C, maximum 15.32 °C, rain 83 mm, and dry spell 9.2 days.
When should Parsley be avoided in Biella?
The available Parsley window is from April 28 to April 30 and remains classified as risky. The best estimated success rate is 60%; before starting, check: overall climate risk is moderate.
Sources and limits
Use these dates as practical guidance, not fixed deadlines. Exposure, soil, containers, irrigation, and the next few days' forecast can move the right timing earlier or later.
- Municipality registry: ISTAT
- Municipal altimetry and altitude bands: ISTAT geographic statistics for municipalities 2021
- Local historical climate: NASA POWER Daily API
- Representative weather point: GeoNames
- Crop needs: OrtoClima
- Last data update: June 21, 2026

