What does it mean to send water to chrysanthemums?

Chrysanthemum is a kind of wild plant, and its leaves are gray and white, which looks like an unfolded chrysanthemum. It's hard to see it in cold winter. Spring is bright in March, and a plant grows happily. Growing in the uncultivated early rice field, the water chrysanthemum with darker color and larger head is Tian Shuiju. On the edge of the mountain, there is a landscape chrysanthemum. In Anhui, there is a custom of eating chrysanthemum cakes on March 3. After picking the chrysanthemum, wash it, mix the chrysanthemum and the powder evenly, put it in a rice bowl and mash it repeatedly to make a cake. In the countryside, whoever cooks chrysanthemum cake first will give it to the neighbors. That's why it's called water chrysanthemum!