What factors should be considered when arranging flowers for an outdoor event?

When arranging flowers for an outdoor event, it's essential to consider heat, wind, and humidity. These environmental factors significantly influence how flowers will perform and how long they will last during the event.

Heat can cause flowers to wilt and dry out quickly, impacting their aesthetic and fragrance. Choosing flowers that are more heat-resistant or ensuring adequate hydration can help in such conditions. Wind can damage delicate blooms and cause instability in arrangements; it's crucial to anticipate wind speeds and find ways to secure arrangements against gusts. Humidity affects the moisture level in both the air and the flowers, influencing their freshness. High humidity can be beneficial, but excessive moisture can lead to fungal issues or make blooms overly saturated.

By prioritizing these factors, florists can create more resilient arrangements that maintain their beauty and integrity throughout an outdoor event. The other options, while they may include relevant considerations, do not directly address the immediate environmental challenges of an outdoor setting as effectively as the correct choice does.