May in Viterbo
What to plant in May in Viterbo
Direct sowing, recommended transplants, and average climate risks for a vegetable garden in Viterbo in May.
Operational summary
Crop actions
| Action | Crops | Success probability |
|---|---|---|
| Direct sowing13 crops | Swiss chard, Carrot, Tuscan kale, Onion, Green bean, Fennel, Lettuce, Potato, Pea, Parsley, Radish, Arugula, Spinach | High97.15% |
| Start indoors13 crops | Broccoli, Tuscan kale, Cucumber, Fennel, Strawberry, Lettuce, Eggplant, Pepper, Tomato, Rosemary, Sage, Pumpkin, Zucchini | High80% |
| Transplants8 crops | Broccoli, Tuscan kale, Onion, Fennel, Strawberry, Lettuce, Rosemary, Sage | High95.38% |
| Wait0 crops | - | - |
Direct sowing (13)
Swiss chardwindow: from May 1 to May 31harvest: from June 19 to July 19›
Carrotwindow: from May 1 to May 31harvest: from June 29 to July 29›
Tuscan kalewindow: from May 1 to May 31harvest: from June 24 to July 24›
Onionwindow: from May 1 to May 31harvest: from July 29 to August 28›
Green beanwindow: from May 23 to May 31harvest: from July 11 to July 19›
Fennelwindow: from May 1 to May 31harvest: from June 29 to July 29›
Lettucewindow: from May 1 to May 31harvest: from June 4 to July 4›
Potatowindow: from May 1 to May 31harvest: from July 29 to August 28›
Start indoors (13)
Broccolistart indoors: February 28harvest: from June 8 to November 9›
Tuscan kalestart indoors: February 27harvest: from May 26 to November 19›
Cucumberstart indoors: May 14harvest: from July 23 to October 21›
Fennelstart indoors: March 19harvest: from June 21 to November 9›
Strawberrystart indoors: March 6harvest: from June 1 to November 19›
Lettucestart indoors: March 13harvest: from May 14 to November 9›
Eggplantstart indoors: April 26harvest: from August 29 to October 16›
Pepperstart indoors: April 20harvest: from August 18 to October 22›
Transplants (8)
Broccoliwindow: from May 1 to May 31harvest: from June 29 to July 29›
Tuscan kalewindow: from May 1 to May 31harvest: from June 24 to July 24›
Onionwindow: from May 1 to May 31harvest: from July 29 to August 28›
Fennelwindow: from May 1 to May 31harvest: from June 29 to July 29›
Strawberrywindow: from May 1 to May 31harvest: from June 29 to July 29›
Lettucewindow: from May 1 to May 31harvest: from June 4 to July 4›
Rosemarywindow: from May 2 to May 31harvest: from June 30 to July 29›
Sagewindow: from May 1 to May 31harvest: from June 29 to July 29›
Wait (0)
- -
Crops for this month
| Action | Crops | Success probability |
|---|---|---|
| Direct sowing13 crops | Swiss chardwindow: from May 1 to May 31harvest: from June 19 to July 19Carrotwindow: from May 1 to May 31harvest: from June 29 to July 29Tuscan kalewindow: from May 1 to May 31harvest: from June 24 to July 24Onionwindow: from May 1 to May 31harvest: from July 29 to August 28Green beanwindow: from May 23 to May 31harvest: from July 11 to July 19Fennelwindow: from May 1 to May 31harvest: from June 29 to July 29Lettucewindow: from May 1 to May 31harvest: from June 4 to July 4Potatowindow: from May 1 to May 31harvest: from July 29 to August 28Peawindow: from May 1 to May 31harvest: from June 24 to July 24Parsleywindow: from May 1 to May 31harvest: from July 19 to August 18Radishwindow: from May 1 to May 31harvest: from May 25 to June 24Arugulawindow: from May 1 to May 31harvest: from May 25 to June 24Spinachwindow: from May 1 to May 31harvest: from June 4 to July 4 | High97.15% |
| Start indoors13 crops | Broccolistart indoors: February 28harvest: from June 8 to November 9Tuscan kalestart indoors: February 27harvest: from May 26 to November 19Cucumberstart indoors: May 14harvest: from July 23 to October 21Fennelstart indoors: March 19harvest: from June 21 to November 9Strawberrystart indoors: March 6harvest: from June 1 to November 19Lettucestart indoors: March 13harvest: from May 14 to November 9Eggplantstart indoors: April 26harvest: from August 29 to October 16Pepperstart indoors: April 20harvest: from August 18 to October 22Tomatostart indoors: April 23harvest: from August 12 to October 29Rosemarystart indoors: March 21harvest: from June 30 to November 9Sagestart indoors: March 10harvest: from June 19 to November 9Pumpkinstart indoors: May 14harvest: from September 1 to November 3Zucchinistart indoors: May 14harvest: from July 18 to October 18 | High80% |
| Transplants8 crops | Broccoliwindow: from May 1 to May 31harvest: from June 29 to July 29Tuscan kalewindow: from May 1 to May 31harvest: from June 24 to July 24Onionwindow: from May 1 to May 31harvest: from July 29 to August 28Fennelwindow: from May 1 to May 31harvest: from June 29 to July 29Strawberrywindow: from May 1 to May 31harvest: from June 29 to July 29Lettucewindow: from May 1 to May 31harvest: from June 4 to July 4Rosemarywindow: from May 2 to May 31harvest: from June 30 to July 29Sagewindow: from May 1 to May 31harvest: from June 29 to July 29 | High95.38% |
| Wait0 crops | - | - |
Direct sowing (13)
Swiss chardwindow: from May 1 to May 31harvest: from June 19 to July 19›
Carrotwindow: from May 1 to May 31harvest: from June 29 to July 29›
Tuscan kalewindow: from May 1 to May 31harvest: from June 24 to July 24›
Onionwindow: from May 1 to May 31harvest: from July 29 to August 28›
Green beanwindow: from May 23 to May 31harvest: from July 11 to July 19›
Fennelwindow: from May 1 to May 31harvest: from June 29 to July 29›
Lettucewindow: from May 1 to May 31harvest: from June 4 to July 4›
Potatowindow: from May 1 to May 31harvest: from July 29 to August 28›
Start indoors (13)
Broccolistart indoors: February 28harvest: from June 8 to November 9›
Tuscan kalestart indoors: February 27harvest: from May 26 to November 19›
Cucumberstart indoors: May 14harvest: from July 23 to October 21›
Fennelstart indoors: March 19harvest: from June 21 to November 9›
Strawberrystart indoors: March 6harvest: from June 1 to November 19›
Lettucestart indoors: March 13harvest: from May 14 to November 9›
Eggplantstart indoors: April 26harvest: from August 29 to October 16›
Pepperstart indoors: April 20harvest: from August 18 to October 22›
Transplants (8)
Broccoliwindow: from May 1 to May 31harvest: from June 29 to July 29›
Tuscan kalewindow: from May 1 to May 31harvest: from June 24 to July 24›
Onionwindow: from May 1 to May 31harvest: from July 29 to August 28›
Fennelwindow: from May 1 to May 31harvest: from June 29 to July 29›
Strawberrywindow: from May 1 to May 31harvest: from June 29 to July 29›
Lettucewindow: from May 1 to May 31harvest: from June 4 to July 4›
Rosemarywindow: from May 2 to May 31harvest: from June 30 to July 29›
Sagewindow: from May 1 to May 31harvest: from June 29 to July 29›
Wait (0)
- -
Method and limits
What should I start with in May in Viterbo?
Start with Swiss chard for direct sowing during from May 1 to May 31. The estimated harvest is from June 19 to July 19 and the best estimated success rate is 100%.
Which crop can be started indoors in May?
For Broccoli, the useful indoor seed period is from February 28 to July 31. The expected transplanting window is from April 10 to September 11 and it is best to start seedlings 42 days earlier.
What limits May most in Viterbo?
Check irrigation and soil moisture: the average dry spell reaches 11.17 days, even with average rain of 52.75 mm. Monthly averages: minimum 11.37 °C, maximum 22.47 °C, rain 52.75 mm, and dry spell 11.17 days.
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
- Local historical climate: NASA POWER Daily API
- Representative weather point: GeoNames
- Crop needs: OrtoClima
- Last data update: June 21, 2026
