The Victorian-era trappings of Violet Evergarden are no accident. Victorian Great Britain has, retroactively, become a divergence point in fiction where, if industry had advanced along this particular timeline rather than another, things would have been different. This, along with rich aesthetic trappings that accompany any economic boom in history, make it a much-desired setting, begetting the entire steampunk genre.
A key factor to keep in mind when evaluating steampunk as a fiction genre is the boom of 19th-century novelists — and the novel as a leisure activity in and of itself — that accompanied the Industrial Revolution. Charles Dickens, the Brontë sisters, William Thackeray, and Mary Anne Evans (George Eliot) are all products of this time period. After them came Jules Verne, H.G. Wells, and the scientific romance (later called scientific fiction, or sci-fi). Many works that are considered great or integral to understanding the development of western culture were written in or around the time of Queen Victoria. Since they are taught so often in schools, it’s easy to see how aspiring writers would want to take elements of these lush environments and somehow port them into a more modern era.
Not everyone can write in Violet Evergarden. This is an understated but important aspect of where Victorian culture and the novel frame the series’ narrative. It creates a barrier between those who can write, or even have access to someone writing for them, and those who cannot.
Outside of the gift of a red rose — which has been commercialized and commodified extensively — there are few flowers today whose meanings are widely recognized outside of hobbyist circles or florists. Now, the language of flowers, or floriography, has primarily been relegated to a secondary visual language used (both deftly and clumsily) in art.
In Victorian England, myriad factors led to the development of flowers as a way to send emotionally-charged messages meaning everything from love to sexual desire to hatred. The Victorian Era was one of industrial progress, leading to a rising middle class and more widely-available leisure activities. Victorian morality is commonly described as draconian or puritanical. The reality is a bit more complex. For example, alongside the rise of the novel came the rise of erotica and the expression of sexual desire in written letters. Floriography accompanied this. Through flowers, people could send coded messages to each other — some that they could even wear as fashion accessories — that said what they could not speak aloud due to the morality of the time. As western floriography developed through the Victorian era, so did the varied meanings that could be expressed. One flower could mean something when paired with another flower, and carry an opposing meaning when paired with a different flower. Floriography and the written word also merged together well, with novels of the time period referencing flower language with the expectation that readers would parse their meanings.
Violet Evergarden plays with a Victorian aesthetic and steampunk-like anachronism (which is why discussing Victorian floriography is more appropriate in this case than the iconography or different meanings of Japanese hanakotoba, prevalent in other anime).