August in Siena is a month rich in garden options. There are 22 useful crops: Swiss chard, Broccoli, Carrot, Tuscan kale, Cucumber, Onion, Green bean, Fennel, Strawberry, Lettuce, Eggplant, Potato, Pepper, Pea, Tomato, Parsley, Radish, Rosemary, Arugula, Sage, Spinach, Zucchini. The same card can combine direct sowing, indoor seed starts, transplanting when they overlap in the month.
Before starting, watch especially for: heat risk for sensitive crops. Crops to wait on with more care: Pumpkin.
Crops for this month
Each crop appears once. Inside the card you can see the useful options for the month, such as direct sowing, indoor starts, transplanting, or a cautious wait.
Why the calendar changes
Climate risk for the month
Average minimum temperature
18 C
Average maximum temperature
31.86 C
Average temperature
24.58 C
Average rain
33.88 mm
Average dry spell
13.7 days
Average solar radiation
21.64
heat risk for sensitive crops
FAQ
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.
