These are floral arrangements featuring carnations that are dyed or bred to display the colors red, white, and blue. They are often used in contexts where patriotic symbolism is desired, such as national holidays or events honoring a nation.
The visual combination evokes strong feelings of patriotism and national pride. Throughout history, colors have been used to represent nations and ideologies, and the specific trio mentioned is commonly associated with countries like the United States and the United Kingdom. Utilizing such flowers in decorations or gifts can be a powerful way to express allegiance and respect.