1. Check your flowers daily // Keep the vase, container or liner filled with fresh water. Even if the container has floral foam, you should keep the water level high to promote long lasting flowers. If you completely change the water, you should also thoroughly clean the container.
2. re-cut their stems // 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.
3. Change their water // Be sure to clean the vase before refilling it with room-temperature water. Be sure no debris is floating in the water (such as leaves) as this could promote the growth of bacteria which can shorten a flower's life.
4. Try and display flowers in a cool spot // Avoid placing fresh flowers near ripening fruit or near full sun.