Basil is not native to North America but immigrated to us from tropical regions. Thus, the herbal plant is not endowed with a hardy constitution. In order for the popular basil to thrive in the bed and on the balcony, the focus is on the following optimal temperatures.
- the seeds are only in the mood to germinate at 20 to 25 degrees Celsius (68-77F)
- planting outdoors is only possible after the winter, when there is no longer a threat of ground frost
- In the bed and on the balcony, 10 to 12 degrees Celsius (50-53F) is the absolute minimum temperature
- ideal growth conditions prevail at a warm 20 to 25 degrees Celsius (68-77F) and higher
If perennial varieties of basil move to the windowsill or the heated greenhouse in good time, there are good prospects of successful overwintering. The top premise here is temperatures of 18 to 22 degrees (64-71F) in a sunny location.
