What primarily contributes to the longevity of cut flowers in arrangements?

The longevity of cut flowers in arrangements is primarily influenced by flower food and hydration. Proper hydration is essential as it allows flowers to absorb water effectively, which is critical for their metabolism and overall health. Flower food typically contains a mix of sugar, acidifiers, and antibacterial agents. The sugar serves as a food source, providing energy to the flowers; the acidifiers help to lower the pH of the water, allowing for better water uptake; and the antibacterial agents help to prevent the growth of bacteria that can block the stems and impede hydration.

Maintaining optimal hydration and ensuring that the flowers receive nutrients through the flower food can significantly extend the lifespan of the arrangement, keeping the blooms fresh and vibrant for a longer period. This knowledge is crucial for anyone working with cut flowers, as it directly ties to the care and maintenance practices that enhance flower longevity.