Which arrangement technique can convey movement or flow within the design?

Cascading design is particularly effective in conveying movement or flow within a floral arrangement. This technique involves the use of flowers and foliage that physically drape down from the main focal point, creating a dynamic visual effect. The downward motion not only draws the eye along the length of the arrangement but also mimics natural elements such as waterfalls or vines, enhancing the sense of flow.

In contrast, horizontal design typically presents a stable and grounded appearance, emphasizing width rather than movement. Vertical design, while it can suggest height and grandeur, does not inherently create the same sense of movement as cascading design does. Compact design emphasizes a dense grouping of elements, which often leads to a more static and confined presentation, limiting the perception of flow or movement. Therefore, cascading design stands out as the most effective technique for conveying movement within floral arrangements.