The Spring Festival, also known as Chinese New Year, is celebrated as the Twelfth Flower due to its significance in the Chinese zodiac and its role in marking the beginning of a new year. This tradition is deeply rooted in Chinese culture and is celebrated with various customs and rituals.

The Twelfth Flower is a term derived from the Chinese zodiac, which is a 12-year cycle that represents different animals. Each year is associated with a specific animal, and the Spring Festival marks the beginning of a new cycle. The Twelfth Flower is the final flower in a series of twelve that symbolize the passing of the year. It is believed that the Twelfth Flower brings good luck and prosperity for the upcoming year.

The tradition of the Twelfth Flower is supported by historical and cultural evidence. According to the Chinese zodiac, the Twelfth Flower is the plum blossom, which is known for its resilience and beauty even in the coldest months of winter. This symbolizes the hope and renewal that comes with the new year. The plum blossom is also associated with the Chinese New Year celebrations, as it is often depicted in decorations and artworks during the festival.

Data from various cultural studies and historical records indicate that the Twelfth Flower tradition has been celebrated for centuries. For example, the "Tongdian" (General History of the Tang Dynasty) mentions the Twelfth Flower Festival during the Tang Dynasty (618-907 AD). This suggests that the tradition dates back at least a thousand years, making it a deeply ingrained part of Chinese culture.

The Twelfth Flower Festival is also a time for family reunions and the exchange of gifts. It is believed that the Twelfth Flower brings good fortune and happiness to those who celebrate it. This tradition is not only a way to honor the past but also to look forward to the future with hope and optimism.

In conclusion, the Spring Festival is celebrated as the Twelfth Flower due to its association with the Chinese zodiac and its role in symbolizing renewal and prosperity. The tradition of the Twelfth Flower is supported by historical evidence and is an integral part of Chinese culture, celebrated with various customs and rituals that bring families together and foster a sense of community and hope for the new year.