March in Formia
What to plant in March in Formia
Direct sowing, recommended transplants, and average climate risks for a vegetable garden in Formia in March.
Operational summary
Crop actions
| Action | Crops | Success probability |
|---|---|---|
| Direct sowing1 crop | Onion | High83% |
| Start indoors7 crops | Broccoli, Tuscan kale, Onion, Fennel, Strawberry, Lettuce, Sage | High80.43% |
| Transplants1 crop | Onion | High83% |
| Wait6 crops | Swiss chard, Carrot, Pea, Radish, Arugula, Spinach | Low50% |
Direct sowing (1)
Start indoors (7)
Broccolistart indoors: March 7harvest: from June 16 to November 5›
Tuscan kalestart indoors: March 1harvest: from May 29 to November 22›
Onionstart indoors: January 7harvest: from June 21 to December 6›
Fennelstart indoors: March 31harvest: from July 3 to November 5›
Strawberrystart indoors: March 15harvest: from June 10 to November 22›
Lettucestart indoors: March 21harvest: from May 22 to November 5›
Sagestart indoors: March 12harvest: from June 21 to November 5›
Transplants (1)
Wait (6)
Swiss chardwindow: from March 26 to March 31harvest: from May 14 to May 19›
Carrotwindow: from March 26 to March 31harvest: from May 24 to May 29›
Peawindow: from March 23 to March 31harvest: from May 16 to May 24›
Radishwindow: from March 18 to March 31harvest: from April 11 to April 24›
Arugulawindow: from March 18 to March 31harvest: from April 13 to April 24›
Spinachwindow: from March 23 to March 31harvest: from April 26 to May 4›
Crops for this month
| Action | Crops | Success probability |
|---|---|---|
| Direct sowing1 crop | Onionwindow: from March 24 to March 31harvest: from June 21 to June 28 | High83% |
| Start indoors7 crops | Broccolistart indoors: March 7harvest: from June 16 to November 5Tuscan kalestart indoors: March 1harvest: from May 29 to November 22Onionstart indoors: January 7harvest: from June 21 to December 6Fennelstart indoors: March 31harvest: from July 3 to November 5Strawberrystart indoors: March 15harvest: from June 10 to November 22Lettucestart indoors: March 21harvest: from May 22 to November 5Sagestart indoors: March 12harvest: from June 21 to November 5 | High80.43% |
| Transplants1 crop | Onionwindow: from March 24 to March 31harvest: from June 21 to June 28 | High83% |
| Wait6 crops | Swiss chardwindow: from March 26 to March 31harvest: from May 14 to May 19Carrotwindow: from March 26 to March 31harvest: from May 24 to May 29Peawindow: from March 23 to March 31harvest: from May 16 to May 24Radishwindow: from March 18 to March 31harvest: from April 11 to April 24Arugulawindow: from March 18 to March 31harvest: from April 13 to April 24Spinachwindow: from March 23 to March 31harvest: from April 26 to May 4 | Low50% |
Direct sowing (1)
Start indoors (7)
Broccolistart indoors: March 7harvest: from June 16 to November 5›
Tuscan kalestart indoors: March 1harvest: from May 29 to November 22›
Onionstart indoors: January 7harvest: from June 21 to December 6›
Fennelstart indoors: March 31harvest: from July 3 to November 5›
Strawberrystart indoors: March 15harvest: from June 10 to November 22›
Lettucestart indoors: March 21harvest: from May 22 to November 5›
Sagestart indoors: March 12harvest: from June 21 to November 5›
Transplants (1)
Wait (6)
Swiss chardwindow: from March 26 to March 31harvest: from May 14 to May 19›
Carrotwindow: from March 26 to March 31harvest: from May 24 to May 29›
Peawindow: from March 23 to March 31harvest: from May 16 to May 24›
Radishwindow: from March 18 to March 31harvest: from April 11 to April 24›
Arugulawindow: from March 18 to March 31harvest: from April 13 to April 24›
Spinachwindow: from March 23 to March 31harvest: from April 26 to May 4›
Local climate
Altitude and microclimates
- Altitude range
- -1-1388 m a.s.l.
- Total altitude difference
- 1389 m
- Standard deviation
- 386.06 m
- Main altitude bands
- <300 m (47.6%), 600-899 m (20.03%)
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
What should I start with in March in Formia?
Start with Onion for direct sowing during from March 24 to March 31. The estimated harvest is from June 21 to June 28 and the best estimated success rate is 83%.
Which indoor seed start matters in March?
For Broccoli, the useful indoor seed period is from March 7 to July 27. The expected transplanting window is from April 18 to September 7 and it is best to start seedlings 42 days earlier.
What should I watch in March in Formia?
Check night temperatures: with an average minimum of 3.87 °C, germination and sensitive transplants can slow down. Check irrigation and soil moisture: the average dry spell reaches 12.3 days, even with average rain of 64.03 mm. Monthly averages: minimum 3.87 °C, maximum 13.34 °C, rain 64.03 mm, and dry spell 12.3 days.
Why wait on Swiss chard in March?
The available Swiss chard window is from March 26 to March 31 and remains classified as risky. The best estimated success rate is 50%; 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
