In bouquet construction, what are the outer petals of flowers such as roses and peonies called?

The outer petals of flowers such as roses and peonies are referred to as guard petals. These petals play an essential role in the structure of the flower, serving as a protective barrier for the inner petals and the reproductive parts of the flower. By surrounding the inner petals, guard petals help maintain the flower's form and present a more aesthetically pleasing appearance in arrangements. They can also contribute to the overall longevity of the flower, as they shield the inner petals from environmental stresses, such as damage and dehydration.

In bouquet construction, emphasizing the guard petals can enhance texture and depth, making the arrangement more visually appealing. This is especially true in flowers like roses where guard petals often have a different coloration or texture compared to the inner petals, adding to the bouquet's complexity.