True or False: The stems of floral materials must always be submerged in water.

In floral design, it's important to recognize that while many types of floral materials do benefit from having their stems submerged in water to maintain freshness and hydration, it is not a strict requirement for all. Certain materials, such as dried flowers or specific types of foliage, can actually be negatively affected by prolonged exposure to water, leading to rot or mold. Additionally, some floral arrangements incorporate techniques where stems are placed in oasis foam or other mediums that retain moisture without requiring direct water contact. This understanding highlights the versatility in floral design practices where immersion is beneficial but not always necessary.