In the Dark World, Flowery bears striking similarities to a human, with the most obvious difference being that his skin, as well as his hair, are bright yellow. His hair is short, with the top and bangs being swayed to the right and slightly upwards shown with an undercut. Unlike most beings in Dark Worlds, Flowery, as well as the rest of the flowers, are neither Lightners nor Darkners, as they are living beings in the Light World like Lightners but gain a radically different form in the Dark World like Darkners. Flowery's eyes are colored, having a dark gold color with normal, white sclera, which can only be seen after the fight with him, as his eyes are typically always closed, no matter his emotion. Flowery's outfit consists of a white collared shirt overlaid with an orange and green vest, with the right side being green, and the left side being orange, and a black mantle, which he carries over his shoulder. Brown pants and black shoes to complete his outfit. Flowery is a pastiche of the type of ikemen and bishōnen character archetypes who form the love interests of classic shōjo anime, and is presented as such. Flowery boasts a personality befitting the stereotype of a preppy college student: high-class, sociable, appearance-conscious and somewhat bossy. He notably acts extremely protective and friendly towards Asgore due to the circumstances leading to his life being extended beyond expectations thanks to the florist's extensive care. He reveals more shōnen archetypes in his personality in contrast to his shōjo traits, where he makes it clear that he deeply values and trusts his friends, as well as how hard he is willing to fight for them, which seems to enhance his fighting capabilities to some degree. Towards others, he has an overbearing and a confident personality. He projects a glamorous attitude prone to dramatic intonation. He in particular has a strong habit of belittling Ralsei, which forms the crux of a rivalry between them. Flowery strongly values the power of friendship and deeply cares for the others, and, in turn, they look up to him as a dependable and virtuous authority figure. He has heightened awareness of the Dark World and its functioning, but on the other hand, values little the world's ultimate fate, believing that nurturing Asgore's happiness as he nurtured theirs takes priority. He starkly opposes Ralsei's fatalistic view of a determined journey guided by the prophecy, fully believing that residents of the dark are able to master their own fates and choose freedom over the shackles of fate. However towards people he has romantic feelings for, he becomes obsessive, slightly violent and a little possessive, and attempts to remove others who get in his way romantically.