What is one purpose of using foliage in a floral arrangement?

Using foliage in a floral arrangement primarily serves the function of hiding the mechanics in the arrangement, such as the stem cuts, wire, and foam, which might otherwise be visible. This use of foliage not only improves the aesthetic appeal of the arrangement by creating a more cohesive, natural look but also provides a finished, polished appearance. Foliage can effectively frame and complement the flowers while obscuring any artificial components that are part of the structure.

While foliage can contribute to other aspects of the arrangement, such as providing support or altering weight, its most notable role is in enhancing the visual quality by concealing the underlying mechanics. Enhancing scent is typically associated more with the flowers themselves rather than the foliage, making foliage an essential element for achieving a visually pleasing and well-integrated design rather than modifying aroma.