Every few days, remove the flowers from the design and re-cut the stems. Remove 3/4" to one inch from the bottom of the stem and be sure to cut the stem at an angle to allow the flower the best chance to take up water. Use a sharp knife or sharp floral cutter or scissor. Avoid smashing or piercing the stems, as this can destroy the water vessels in the stem and prevent water absorption. Remove any spent or damaged blooms or foliage that falls below the waterline in the vase.

To avoid disturbing the stem placements in a vase arrangement, tie the stems with twine just above the vase’s edge before taking them out of their vase. Hold the tied arrangement at the twine-bound point to re-cut the stems. Then place them back into the clean vase with the fresh water and a flower food.

Be sure to clean the vase before refilling it with room-temperature water mixed with the proper amount of fresh flower food. Be sure no debris is floating in the water (such as leaves and stem parts) as this could promote the growth of bacteria which can shorten a flower's life.