In the memory of many Hanoians, bougainvillea is associated with old houses or perennial dormitories. In the summer, especially from May, bougainvillea blooms on the streets and alleys. In Hanoi, it is not difficult to see confetti. As a result, the surrounding scenery also becomes softer and more romantic. The bougainvillea is native to Central South America. The plant is suitable for tropical climates and flowers all year round. In Hanoi, paper flowers are planted everywhere such as parks, schools, hospitals, medians, sidewalks. There are also times when bougainvillea is grown in a pot and posed as an ornamental plant. But the most special is the image of confetti embracing each small house. Paper flowers adorn the door frames more poetic, people feel light, peaceful and serene. The bougainvillea flowers almost bloom throughout the four seasons, but it seems that in May, this flower has a more radiant beauty in each sunny patch. Paper flowers always appear as a highlight, although gentle but impressive enough to attract all attention. The bougainvillea flowers are fast growing, easy to grow and care for, the flowers are wrong and have a variety of colors, symbolizing a love that is sincere, rustic, simple, simple. Tiny confetti, fragile petals but blooming in large bunches, are also representative of family affection. Each fragile flower is attached to each other to survive, against strong winds and heavy rain, like the love of brothers in one family. The pink color of confetti is like a special “dot” feature of collective houses in Ha Thanh. Paper flowers have many colors, in addition to the main pink color that we often see, confetti also adorns themselves with pure, gentle white flower clusters, making many people unable to take their eyes off when passing by.