The national flower of the USA is the rose. This designation was made in 1986 when President Ronald Reagan signed a resolution proclaiming the rose as the country's official floral emblem. The rose represents love, beauty, and passion and has numerous varieties and colors, each carrying different meanings. The flower's popularity and symbolism in American culture, art, and literature contribute to its status. Roses are cultivated across the country and are commonly used in gardens, arrangements, and celebrations, making them an enduring symbol of American heritage and pride.