How does temperature affect flower longevity?

Higher temperatures can indeed accelerate wilting and decrease the shelf life of flowers. This happens because heat can speed up the metabolic processes of plants, leading to increased water loss and stress. Consequently, when flowers are exposed to elevated temperatures, the rate of transpiration—the process by which water evaporates from the plant's surface—increases. This rapid loss of moisture causes flowers to wilt more quickly than they would under cooler conditions. Additionally, higher temperatures can also promote the growth of bacteria and fungi in the water, further diminishing the flowers' lifespan. Overall, maintaining cooler temperatures is advisable to prolong the freshness and longevity of cut flowers.