Floral foam, also known as oasis, is a lightweight, porous material used by florists to arrange and support fresh flowers. It absorbs water, helping to keep the flowers hydrated and extending their lifespan. The foam can be easily cut and shaped to fit various containers, making it a versatile tool for floral arrangements. When using floral foam, it is essential to soak it in water before inserting flowers. This ensures that the foam is saturated, allowing it to provide moisture to the stems. However, it is important to note that floral foam is not biodegradable, raising environmental concerns regarding its disposal.