If the flowers wilt, repeat Steps 2 through 6. Wash the container with soap and water after each use to remove bacteria. If bacteria are left on the containers, they will multiply at a rapid rate, clog the conducting tissue of the plant and cause wilting. Place the arrangement in a protected location. Do not place in direct sunlight, over a radiator or air duct, on a television set, or in a draft.
Heat reduces flower longevity.
Warm air causes water to be lost from flowers faster than it can be absorbed by the stems. Double the life of your flowers by placing in a cold room or refrigerator at night or when you are not at home during the day. Most flowers do well at about 350 F. 12. Do not store or enclose flowers with fruit or vegetables. Many fresh fruits and vegetables produce ethylene gas which will shorten flower longevity.