Skip to content
OrtoClima Calendario locale dell'orto

August in Siena

What to plant in August in Siena

Direct sowing, recommended transplants, and average climate risks for a vegetable garden in Siena in August.

Italiano

August in SienaMonthly climate profile
Average temperature24.58 °CAverage of means
Average minimum18 °CAverage of minimums
Average rain33.88 mmTotal precipitation
Frost riskLowRisk during the month
Recommended actions in AugustHow many crops fall into each action
Direct sowing15crops
Start indoors5crops
Transplants13crops
Wait1crop

Operational summary

Crop actions

ActionCropsSuccess probability
Direct sowing15 cropsSwiss chard, Carrot, Tuscan kale, Cucumber, Onion, Green bean, Fennel, Lettuce, Potato, Pea, Parsley, Radish, Arugula, Spinach, ZucchiniHigh91.13%
Start indoors5 cropsTuscan kale, Cucumber, Strawberry, Lettuce, ZucchiniHigh80%
Transplants13 cropsBroccoli, Tuscan kale, Cucumber, Onion, Fennel, Strawberry, Lettuce, Eggplant, Pepper, Tomato, Rosemary, Sage, ZucchiniHigh85.85%
Wait1 cropPumpkinLow53%

Direct sowing (15)

Start indoors (5)

Transplants (13)

Wait (1)

Method and how to read the dataSee how we use climate data and what the thresholds mean.

Crops for this month

ActionCropsSuccess probability
Direct sowing15 crops
Swiss chardwindow: from August 1 to August 31harvest: from September 19 to October 19Carrotwindow: from August 1 to August 31harvest: from September 29 to October 29Tuscan kalewindow: from August 1 to August 31harvest: from September 24 to October 24Cucumberwindow: from August 1 to August 26harvest: from September 19 to October 14Onionwindow: from August 1 to August 22harvest: from October 29 to November 19Green beanwindow: from August 1 to August 31harvest: from September 19 to October 19Fennelwindow: from August 1 to August 31harvest: from September 29 to October 29Lettucewindow: from August 1 to August 31harvest: from September 4 to October 4Potatowindow: from August 1 to August 4harvest: from October 29 to November 1Peawindow: from August 1 to August 31harvest: from September 24 to October 24Parsleywindow: from August 1 to August 17harvest: from October 19 to November 4Radishwindow: from August 1 to August 31harvest: from August 25 to September 24Arugulawindow: from August 1 to August 31harvest: from August 25 to September 24Spinachwindow: from August 1 to August 31harvest: from September 4 to October 4Zucchiniwindow: from August 1 to August 27harvest: from September 14 to October 10
High91.13%
Start indoors5 crops
Tuscan kalestart indoors: March 1harvest: from May 29 to November 14Cucumberstart indoors: May 24harvest: from August 2 to October 14Strawberrystart indoors: March 14harvest: from June 9 to November 13Lettucestart indoors: March 23harvest: from May 24 to November 1Zucchinistart indoors: May 24harvest: from July 28 to October 10
High80%
Transplants13 crops
Broccoliwindow: from August 1 to August 31harvest: from September 29 to October 29Tuscan kalewindow: from August 1 to August 31harvest: from September 24 to October 24Cucumberwindow: from August 1 to August 26harvest: from September 19 to October 14Onionwindow: from August 1 to August 22harvest: from October 29 to November 19Fennelwindow: from August 1 to August 31harvest: from September 29 to October 29Strawberrywindow: from August 1 to August 31harvest: from September 29 to October 29Lettucewindow: from August 1 to August 31harvest: from September 4 to October 4Eggplantwindow: August 1harvest: October 9Pepperwindow: from August 1 to August 13harvest: from October 4 to October 16Tomatowindow: from August 1 to August 14harvest: from October 9 to October 22Rosemarywindow: from August 1 to August 31harvest: from September 29 to October 29Sagewindow: from August 1 to August 31harvest: from September 29 to October 29Zucchiniwindow: from August 1 to August 27harvest: from September 14 to October 10
High85.85%
Wait1 crop
Pumpkinwindow: from August 1 to August 10harvest: from October 29 to November 7
Low53%

Direct sowing (15)

Start indoors (5)

Transplants (13)

Wait (1)

Local climate

Method and limits

Which recommendation stands out for Siena in August?

Start with Swiss chard for direct sowing during from August 1 to August 31. The estimated harvest is from September 19 to October 19 and the best estimated success rate is 97%.

Should I use indoor seed starting in August in Siena?

For Tuscan kale, the useful indoor seed period is from March 1 to August 17. The expected transplanting window is from April 5 to September 21 and it is best to start seedlings 35 days earlier.

What limits August most in Siena?

Check midday heat: with an average maximum of 31.86 °C, sensitive crops may need light shade and steadier irrigation. Check irrigation and soil moisture: the average dry spell reaches 13.7 days, even with average rain of 33.88 mm. Monthly averages: minimum 18 °C, maximum 31.86 °C, rain 33.88 mm, and dry spell 13.7 days.

Why wait on Pumpkin in August?

The available Pumpkin window is from August 1 to August 10 and remains classified as risky. The best estimated success rate is 53%; before starting, check: heat risk for sensitive crops.

Go deeper

Last frost in SienaPlant without cold risk Annual calendar for SienaSee all months BroccoliCultivation and advice Other cropsAll crop profiles

Related pages