Do carnations grow better in warm or cold water in a room temperature climate?

Carnations generally thrive better in warm water, as it helps to dissolve the nutrients in the flower food more effectively and promotes better hydration. However, the water should not be too hot, as extreme temperatures can shock the flowers. In a room temperature climate, using water that is around 100°F (38°C) is ideal for maximizing the longevity and health of the blooms.