Before creating a design using floral foam, give your flowers a fresh start by cutting about a half to 1 inch from each stem. Cut at an angle so stems will insert easily into the foam. Remove any foliage from the bottom of the stem.
Floral foam has a wicking action that helps the flower stem take up water, therefore maximizing the life of your cut flowers. It also provides more versatility for designing. For example, you can create arrangements that are round, asymmetrical or cascading.
Choose a container that will allow water to be added to keep the foam and flowers hydrated. Then, cut your foam to fit your container, allowing the foam to extend about 1 inch above the top of the container.
To soak foam, place it on the surface of a sink or dishpan of water—at least 2 quarts so it can float freely—mixed with flower food. Allow it to sink on its own. Pushing it down will form air pockets that reduce flower life. Add water and flower food every other day.