What is a characteristic of form foliage in floral arrangements?

Form foliage is typically used in floral arrangements to provide structure and shape, guiding the viewer's eye through the composition. Its primary characteristic is that it serves to blend the elements of the arrangement together, creating a cohesive look. This foliage often features bold or unique shapes that can create a focal point, helping to draw attention to certain flowers or aspects of the arrangement.

While other characteristics mentioned are notable in foliage types, they do not define form foliage specifically. For example, foliage may sometimes impart a sense of weight or feature vibrant colors, but these qualities are not exclusive to form foliage and can be found in other types as well. Additionally, the level of care required for the foliage can vary widely and does not provide a clear identifier for form foliage. Thus, the ability of form foliage to blend various components into a unified aesthetic is its defining trait.