Dahlia is a genus of bushy, tuberous, herbaceous perennial
plants native to Mexico. A member of the Asteraceae, dicotyledonous plants. The stems are leafy, ranging in height
from as low as 12 in to more than 6–8 ft. 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. Source