What type of design uses layers to create a flowing effect?

Cascade design is characterized by its use of layers to create a flowing effect, resembling the way water cascades down in a waterfall. This design style typically features a structure where flowers and foliage are arranged to create a sense of movement and depth, with elements that appear to flow downward from a higher point. This effect is achieved by strategically placing longer stems and blooms at varying heights, simulating the visual dynamics of cascading water.

In contrast, mass design focuses on creating a solid, unified appearance with a dense grouping of materials, which does not promote the same sense of flow. Line design emphasizes the use of line and form, often creating more geometric shapes rather than a cascading effect. Symmetrical design, while orderly and balanced, does not produce the flowing quality inherent to cascade arrangements. Thus, cascade design is uniquely suited to evoke the desired flowing effect through its layered arrangement of floral elements.