What are the flowering plants that bloom with purple flowers?

In the world of the spectrum, purple is the light with the shortest wavelength among those visible to humans, and purple often also gives people courage and boldness, with very prominent symbolic meaning. At the same time, purple also means romance, elegance and nobility. And in the world of flowering plants, quite a few plants produce purple flowers, with perennial flowering plants being the most common. So, what are they?
Purple flowers often reveal a sense of mystery and elegance, especially among perennial flowering plants such as Verbena bonariensis, Liatris spicata, Echinacea purpurea, Phlox subulata, and Viola mandshurica as typical representatives. If everyone likes these flowering plants, you might as well plant them for viewing, and can even grow them as household potted plants to beautify the home environment.
For example, Verbena bonariensis, this plant relatively prefers to grow in a warm environment, and has extremely strong drought tolerance, mostly blooming in spring and autumn, and its flowering period is also relatively long. When in bloom, it sways its graceful posture in the breeze, and together with its purple flower color, it is very eye-catching, so it is quite popular among people, and using it as a background to beautify the environment is very good.
Also for example, verbena, this is a perennial herbaceous flowering plant, but the plant form is often relatively tall, usually able to reach 1-1.5 m. Because its tall plant form and bright flower color are relatively eye-catching, viewed from afar, it is like purple clouds, very magnificent.
And for another example, Viola mandshurica, also a perennial herbaceous flowering plant, although the plant form grows relatively short and small, mostly covering the ground surface, it can also be grown as a potted plant for viewing, often presenting another kind of beautiful scene. The flowering period of Viola mandshurica is generally from April to September, which counts as an early spring flowering green plant, not only for appreciation, but at the same time its whole plant can be used as medicine, with the effects of clearing heat and detoxifying, cooling blood and reducing swelling. Moreover, this plant has the characteristics of liking light, liking moisture, tolerating shade, tolerating cold, and not being picky about soil, so its adaptability to the environment is also relatively strong.