The stems are leafy, ranging in height from as low as 12 in (30 cm) to more than 6–8 ft (1.8–2.4 m). The majority of species do not produce scented flowers or cultivars. Like most plants that do not attract pollinating insects through scent, they are brightly colored, displaying most hues, with the exception of blue.
The dahlia was declared the national flower of Mexico in 1963.
This content is from website http://en.wikipedia.org/wiki/Dahlias
The Red Chrysanthemum:The name of chrysanthemum is derived from the Greek words "krus anthemon" that is translated as ‘gold flower’. The flower originates from Europe, Asia and South Africa. Being one of the representatives of the Compositae family this flower is aromatic annual and perennial herbs having from 100 to 200 species.
The flower has a lot of alternative names. Some of them are pompoms, spiders, Fuji's and daisies. Chrysanthemums are available in a vast variety of sizes shapes of spiders, spoons, buttons and blooms. The flowers’ colors are white, yellow, orange, pink, red and purple, etc.
The Chinese consider this flower the highest one; they even gave their royal throne the name in honor of chrysanthemum. This special flower is displayed on Japan's imperial weapon and flag. Japanese people held a national holiday dedicated to chrysanthemums. The celebrations fall on the 9th of September.
Germans adorn their houses with white chrysanthemums on the occasion of Christmas; thus they say welcome to baby Jesus. According to Feng Shui this flower brings laughter and happiness to your home. However some peoples believe this flower brings misfortune if keep it at home. The reason of their belief is the flower’s association with funerals and All Saints Day.
Thanks to contemporary growing and breeding methods the flowers are available during the whole year with average life’s lasting of one or even two weeks.
Rose (botanical name is rosa) enjoyed the honor of being the most popular flower in the world. It is the most popular choice of flower for the purpose of gifting across the world. Roses originate from China and during the Roman period they were extensively grown in the Middle East. The flowers also act as a great addition to office and home décor. Artificial flowers like silk roses in different colors are also used widely as decoration. The birthplace of the cultivated rose is also believed to be in Northern Persia, on the Caspian, or the Faristan on the gulf of Persia.