Dragon boat flower is also known as elixir flower and hydrangea. It is called red Dan in the market. Small evergreen shrub of Dracaena in Rubiaceae. Originated in southern China. Beautiful plant shape, bright red color, suitable for garden clumping, sticking or potted flowers. Flowers bloom around the Dragon Boat Festival. In South China, Acorus calamus and wormwood are used to inserting into doorposts and cooking to wash kitchen utensils to ward off evil spirits, so it is called Dragon Boat Flower. Taiwan Province province likes potted plants or vases, which are called elixir flowers. Medium-sized potted plants, produced in Guangdong and other places. Grading and pricing are based on plant height, crown width, flower coverage and flowerpot size.