Hana-arashi (a Touhou LW original) refers to a strong wind blowing while cherry blossoms are in bloom as well as flower petals carried by strong winds. This is an apt temperament for Yuuka, a youkai who loves flowers. Yuuka is endowed with Wood Phase, which represents flowers, and Star Essence, which represents dreams and her uninhibited free spirit. The strong and kind Wood Phase resists Water Phase, because water nourishes wood, but it is weak to Metal Phase, because metal carves wood. The diverse and uncooperative Star Essence resists the cooperative and indecisive Moon Essence, but it is weak to the charming and arrogant Sun Essence.

This is Yuuka Kazami's ability to freely control any flower. The limits and conditions for this ability are a mystery, but it seems to be fairly versatile as she has been witnessed making flowers bloom at will and making withered flowers bloom again. This ability apparently has no direct use in battle. All of Yuuka's strength comes from her sheer physical prowess and immense youkai power... or so she claims. Practically all of the information regarding abilities has come from the user's own proclamations which has been recorded in the Gensokyo Chronicle compiled by the Child of Miare. Thus, the truth could have easily been overexaggerated or concealed, unbeknownst to anyone but Yuuka herself. In terms of physical strength or durability, flowers are incredibly frail. For starters, there are hardly any plants that continue to bloom for more than one season, and flowers that do bloom are destined to wilt shortly after. But perhaps that is why, irrespective of the time or place, flowers always have been and will forever be loved. So it is quite fitting that Yuuka uses flowers as bullets in Spell Card duels as these battles are fundamentally contests to determine who can make the most beautiful attacks. Flowers are undeniably beautiful, and so are Yuuka's form and ideology when battling against strong opponents with flowers that are meant to be so delicate. Also, it seems that the reason she adores flowers is related in some way or another to dreams. If the color of flowers is truly gathered from the soil... the color may have something to do with temperament or the fragments of the souls of the dead that have sunk deep below the earth. But there is no way to tell for sure.