What is Preserved Flower? "Preserved Flower", also known under different names such as "immortalized flower" and "naturalized flower", was introduced in France. They are fresh flowers and foliage that are specially processed to preserve their freshness for a long period of time. The preservation process was originally started with roses. But in recent years, various other flowers and foliage plants have been commercialized as preserved flowers. The variety of colors has also been diversified. They include Roses, Carnations, Gardenias, Chrysanthemums, Orchids; Hydrangeas, Calla Lilies and foliage all in different sizes and colors; with more than 40 colors, designers can create arrangements to fit all tastes and budgets. How long do preserved flowers last? Preserved flowers are the best alternative to fresh flowers. They are long-lasting. You can keep more than 2 years easily. How to take care of preserved flowers? Preserved flowers may deteriorate in an environment with repeated occurrence of humidity and dryness. Extreme dryness may cause cracks in petals. Direct sunshine may fade colors out, therefore do not put preserved flowers beside windows. In a humid place, dye compound may ooze. If placed in contact with cloth for a long time, color of preserved flowers may migrate.