What is a defining feature of rhythm in floral arrangements?

Rhythm in floral arrangements refers to the visual flow and movement created through the arrangement of elements within a design. This involves how the line and shapes are organized to guide the viewer's eye throughout the arrangement, creating a sense of harmony and progression. The use of line can lead the eye from one area of the arrangement to another, enhancing the overall aesthetic and making the design more dynamic.

In contrast, while repetition of colors, use of contrasting shapes, and placement of large flowers can all contribute to different aspects of floral design, they do not specifically define rhythm. Repetition of colors might create unity, contrasting shapes can add interest, and the placement of large flowers can serve to balance an arrangement, but rhythm highlights the movement and flow, which is crucial for engaging the viewer and creating a cohesive visual experience in the arrangement.