September in Olbia
What to plant in September in Olbia
Direct sowing, recommended transplants, and average climate risks for a vegetable garden in Olbia in September.
Operational summary
Crop actions
| Action | Crops | Success probability |
|---|---|---|
| Direct sowing16 crops | Garlic, Swiss chard, Carrot, Tuscan kale, Cucumber, Onion, Green bean, Fennel, Lettuce, Potato, Pea, Parsley, Radish, Arugula, Spinach, Zucchini | High96.19% |
| Start indoors6 crops | Broccoli, Fennel, Strawberry, Lettuce, Rosemary, Sage | High80% |
| Transplants12 crops | Broccoli, Tuscan kale, Cucumber, Onion, Fennel, Strawberry, Lettuce, Pepper, Tomato, Rosemary, Sage, Zucchini | High94.42% |
| Wait1 crop | Pumpkin | Low50% |
Direct sowing (16)
Garlicwindow: from September 1 to September 30harvest: June 1›
Swiss chardwindow: from September 1 to September 30harvest: from October 20 to November 18›
Carrotwindow: from September 1 to September 30harvest: from October 30 to November 28›
Tuscan kalewindow: from September 1 to September 30harvest: from October 25 to November 23›
Cucumberwindow: from September 1 to September 20harvest: from October 20 to November 11›
Onionwindow: from September 1 to September 30harvest: from November 29 to December 28›
Green beanwindow: from September 1 to September 30harvest: from October 20 to November 18›
Fennelwindow: from September 1 to September 30harvest: from October 30 to November 28›
Start indoors (6)
Broccolistart indoors: January 9harvest: from April 20 to December 25›
Fennelstart indoors: February 25harvest: from May 29 to December 15›
Strawberrystart indoors: February 10harvest: from May 7 to December 27›
Lettucestart indoors: January 19harvest: from March 28 to December 19›
Rosemarystart indoors: March 10harvest: from June 19 to December 14›
Sagestart indoors: February 17harvest: from May 28 to December 22›
Transplants (12)
Broccoliwindow: from September 1 to September 30harvest: from October 30 to November 28›
Tuscan kalewindow: from September 1 to September 30harvest: from October 25 to November 23›
Cucumberwindow: from September 1 to September 20harvest: from October 20 to November 11›
Onionwindow: from September 1 to September 30harvest: from November 29 to December 28›
Fennelwindow: from September 1 to September 30harvest: from October 30 to November 28›
Strawberrywindow: from September 1 to September 30harvest: from October 30 to November 28›
Lettucewindow: from September 1 to September 30harvest: from October 5 to November 3›
Pepperwindow: from September 1 to September 4harvest: from November 4 to November 9›
Wait (1)
Crops for this month
| Action | Crops | Success probability |
|---|---|---|
| Direct sowing16 crops | Garlicwindow: from September 1 to September 30harvest: June 1Swiss chardwindow: from September 1 to September 30harvest: from October 20 to November 18Carrotwindow: from September 1 to September 30harvest: from October 30 to November 28Tuscan kalewindow: from September 1 to September 30harvest: from October 25 to November 23Cucumberwindow: from September 1 to September 20harvest: from October 20 to November 11Onionwindow: from September 1 to September 30harvest: from November 29 to December 28Green beanwindow: from September 1 to September 30harvest: from October 20 to November 18Fennelwindow: from September 1 to September 30harvest: from October 30 to November 28Lettucewindow: from September 1 to September 30harvest: from October 5 to November 3Potatowindow: from September 1 to September 27harvest: from November 29 to December 25Peawindow: from September 1 to September 30harvest: from October 25 to November 23Parsleywindow: from September 1 to September 30harvest: from November 19 to December 18Radishwindow: from September 1 to September 30harvest: from September 25 to October 24Arugulawindow: from September 1 to September 30harvest: from September 25 to October 24Spinachwindow: from September 1 to September 30harvest: from October 5 to November 3Zucchiniwindow: from September 1 to September 21harvest: from October 15 to November 7 | High96.19% |
| Start indoors6 crops | Broccolistart indoors: January 9harvest: from April 20 to December 25Fennelstart indoors: February 25harvest: from May 29 to December 15Strawberrystart indoors: February 10harvest: from May 7 to December 27Lettucestart indoors: January 19harvest: from March 28 to December 19Rosemarystart indoors: March 10harvest: from June 19 to December 14Sagestart indoors: February 17harvest: from May 28 to December 22 | High80% |
| Transplants12 crops | Broccoliwindow: from September 1 to September 30harvest: from October 30 to November 28Tuscan kalewindow: from September 1 to September 30harvest: from October 25 to November 23Cucumberwindow: from September 1 to September 20harvest: from October 20 to November 11Onionwindow: from September 1 to September 30harvest: from November 29 to December 28Fennelwindow: from September 1 to September 30harvest: from October 30 to November 28Strawberrywindow: from September 1 to September 30harvest: from October 30 to November 28Lettucewindow: from September 1 to September 30harvest: from October 5 to November 3Pepperwindow: from September 1 to September 4harvest: from November 4 to November 9Tomatowindow: from September 1 to September 6harvest: from November 9 to November 14Rosemarywindow: from September 1 to September 30harvest: from October 30 to November 28Sagewindow: from September 1 to September 30harvest: from October 30 to November 28Zucchiniwindow: from September 1 to September 21harvest: from October 15 to November 7 | High94.42% |
| Wait1 crop | Pumpkinwindow: from September 1 to September 3harvest: from November 29 to December 1 | Low50% |
Direct sowing (16)
Garlicwindow: from September 1 to September 30harvest: June 1›
Swiss chardwindow: from September 1 to September 30harvest: from October 20 to November 18›
Carrotwindow: from September 1 to September 30harvest: from October 30 to November 28›
Tuscan kalewindow: from September 1 to September 30harvest: from October 25 to November 23›
Cucumberwindow: from September 1 to September 20harvest: from October 20 to November 11›
Onionwindow: from September 1 to September 30harvest: from November 29 to December 28›
Green beanwindow: from September 1 to September 30harvest: from October 20 to November 18›
Fennelwindow: from September 1 to September 30harvest: from October 30 to November 28›
Start indoors (6)
Broccolistart indoors: January 9harvest: from April 20 to December 25›
Fennelstart indoors: February 25harvest: from May 29 to December 15›
Strawberrystart indoors: February 10harvest: from May 7 to December 27›
Lettucestart indoors: January 19harvest: from March 28 to December 19›
Rosemarystart indoors: March 10harvest: from June 19 to December 14›
Sagestart indoors: February 17harvest: from May 28 to December 22›
Transplants (12)
Broccoliwindow: from September 1 to September 30harvest: from October 30 to November 28›
Tuscan kalewindow: from September 1 to September 30harvest: from October 25 to November 23›
Cucumberwindow: from September 1 to September 20harvest: from October 20 to November 11›
Onionwindow: from September 1 to September 30harvest: from November 29 to December 28›
Fennelwindow: from September 1 to September 30harvest: from October 30 to November 28›
Strawberrywindow: from September 1 to September 30harvest: from October 30 to November 28›
Lettucewindow: from September 1 to September 30harvest: from October 5 to November 3›
Pepperwindow: from September 1 to September 4harvest: from November 4 to November 9›
Wait (1)
Method and limits
Which recommendation stands out for Olbia in September?
Start with Garlic for direct sowing during from September 1 to September 30. The estimated harvest is June 1 and the best estimated success rate is 100%.
Which crop can be started indoors in September?
For Broccoli, the useful indoor seed period is from January 9 to September 15. The expected transplanting window is from February 20 to October 27 and it is best to start seedlings 42 days earlier.
What limits September most in Olbia?
Check irrigation and soil moisture: the average dry spell reaches 10.73 days, even with average rain of 47.4 mm. Monthly averages: minimum 17.95 °C, maximum 26.34 °C, rain 47.4 mm, and dry spell 10.73 days.
What makes Pumpkin cautious this month?
The available Pumpkin window is from September 1 to September 3 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
- Local historical climate: NASA POWER Daily API
- Representative weather point: GeoNames
- Crop needs: OrtoClima
- Last data update: June 21, 2026

