Last updated on October 23rd, 2023 at 08:58 pm
Hardy basil would undoubtedly be a big seller – if only it existed. Because of its tropical origins, regal herb nevertheless dies at temperatures below 10 degrees Celsius. At least some varieties thrive outdoors. Here you can learn all the important details.
These varieties bravely defy cold rainy weather.
The vast majority of basil varieties favor a location that is as warm as possible and protected from the rain. Since woody shoots impair the aroma content, experienced hobby gardeners also cut back the plant regularly, thus preserving the tender, herbaceous habit. It is good to know that the following three varieties do not lose their flavor despite woody branches. At the same time, these king herbs take cool rainy weather in the summer without complaint:
- Basil ‘Wild Purple’
- Basil ‘African Blue
- Indian Basil ‘Tulsi
All three varieties captivate with majestic stature, purple or veined leaves, and a pinkish-red bloom. Thus, they all have what it takes to be a charming feast for the eyes in any flower bed. Thanks to the gradually woody shoots, they do not lie on the ground after every summer downpour. As a downer, some amateur gardeners consider the only possible propagation by cuttings.
Lack of winter hardiness does not preclude perennial culture.
Although basil under 10 degrees Celsius cancels the sails, this shortcoming does not necessarily imply the abandonment of perennial culture. In its native country, regal herb thrives very well for several years. Thus, the chances of overwintering are good, provided that the plant finds the following conditions:
- a sunny window place with temperatures from 18 to 22 degrees Celsius.
- protected from cold drafts
- an alternately moist substrate, without danger of waterlogging
- every 4 to 6 weeks a dose of organic liquid fertilizer
Since in the course of wintering no flowers sprout, harvesting is limited to actual needs. Continue to cut whole shoots with a length of 5 centimeters. From mid-May, the royal herb moves to the garden or balcony for another aromatic outdoor season.
Tips & Tricks
Basil planted in a bed is easily moved for overwintering if the plant is placed in the ground in May along with a large container. Ideally, there are two handles on the rim of the pot so you can easily lift the herb plant out of the ground in the fall to carry it to its winter home.