The picture in the answer to the main question is Verbena willow. Judging from the stills, the Verbena in the vampire diary is not Verbena willow, but Verbena multispike, also known as Verbena blueflower and Verbena americana. Verbena multiflora is divided into pink purple and blue purple, and the one in the picture should belong to blue purple.

The vampire diaries season 1 stills

Verbena multiflora likes sunny environment and wet, fertile and well-drained soil. The optimum growth temperature is 20~30℃, and it is not cold-resistant, and it grows slowly below 10℃. It is better to grow in full sunshine. If it is cultivated in an environment with insufficient sunshine, it will grow poorly, and it can bloom all year round, with long flowering period and high ornamental value, especially in spring, summer and autumn, but it is poor or not flowering in winter. It is not harsh on soil selection and good drainage.

Verbena multiflora

As for the area, it is impossible to be accurate to the city. Verbena multiflora mainly grows in Hubei, Hunan, Guizhou, Guangxi and other provinces in China. However, if you like, you can keep it at home (some treasures buy seeds), which is very convenient and easy to live. If the crew can support it, it should be no problem to be careful.