Hydrangeas
With its full bushy head and intense shades of pink, blue, burgundy and purple, it's no wonder the hydrangea represented "vanity" in the Victorian language of flowers (but don't worry, you're not vain if you love hydrangeas).
One of the most popular hydrangea varieties changes in color from bubble-gum pink to sky blue as it grows, depending on the acid level of the soil. A stem or two of this moderately priced, scentless shrub flower fills out arrangements and bouquets, and a few sprigs make a charming boutonniere. You'll find the hydrangea in white and shades of green, pink, burgundy and blue.