Why is humidity important for floral arrangements?

Humidity is crucial for floral arrangements primarily because it helps reduce water loss from the flowers and keeps them hydrated. Flowers lose moisture through a process called transpiration, where water vapor escapes from the plant's surface. In environments with high humidity, this water loss is minimized, which is vital for maintaining the freshness and longevity of the flowers. When flowers are adequately hydrated, they can better absorb nutrients and maintain turgor pressure, which is essential for their structure and overall health.

When considering the other options, while elevated humidity can contribute indirectly to certain aspects of flowers' appearance and functionality—like fragrance or color vibrancy—these are not its primary benefits. Prevention of insect damage is typically reliant on proper care and pest management rather than humidity levels. Thus, the key reason that highlights the significance of humidity in floral arrangements is its role in preventing dehydration and ensuring that the flowers remain healthy and visually appealing.