In floral arrangements, what is the primary purpose of using different flower lengths?

The primary purpose of using different flower lengths in floral arrangements is to enhance the visual appeal and dimension. Varying the lengths of flowers adds depth and interest to the arrangement, allowing the designer to create a more dynamic and engaging composition. This technique can help draw the eye around the arrangement, emphasizing different elements and creating an overall sense of movement. Additionally, varying heights can help balance the overall structure of the design, making it more aesthetically pleasing. In contrast, creating a uniform look, keeping costs low, or matching flower color may serve specific design or logistical purposes, but they do not directly contribute to the richness and complexity that differing flower lengths bring to an arrangement.