During the feathered carnation method, why should the flower head's sheath remain intact?

The feathered carnation method involves a specific technique where the flower head is worked with in a way that promotes its overall aesthetics and durability. Keeping the flower head's sheath intact is essential because it supports the structure of the flower. The sheath serves as a protective layer that helps maintain the integrity of the flower's petals and prevents damage during handling or arranging. This structural support is crucial, particularly when creating arrangements that require the flowers to stand upright or to withstand manipulation without compromising their shape or appearance.

While maintaining moisture does play a role in flower longevity and beauty, the primary purpose of the sheath in this context is to provide essential support for the flower's structure during the floral arrangement process.