What is the purpose of using floral adhesive in floral arrangements?

Using floral adhesive in arrangements primarily serves the function of securing fresh flowers or foliage to containers. This adhesive provides stability and helps ensure that the components of the arrangement stay in place, allowing florists to create more intricate and visually appealing designs without the risk of elements shifting or falling out. Floral adhesives are especially useful in arrangements that may require the use of non-traditional materials or that are meant to be transported, where maintaining the integrity of the design is crucial.

The other options don't accurately represent the primary function of floral adhesive. For instance, while enhancing fragrance, adding color, or ensuring biodegradability are all factors that can contribute to the overall aesthetic and environmental impact of floral arrangements, they are not the direct purpose of floral adhesive, which is strictly for security and stability within the arrangement.