Long-life, also called preserved flowers, are real flowers that have been treated with a special preservation process to maintain their natural appearance and freshness, even long after they have been harvested. This process helps protect the flowers from wilting and decay, giving them a longer life.
There are several methods of preserving flowers, but a common technique is to replace the natural sap and moisture in the flower with a preserving liquid, such as glycerin. Glycerine is also used in food, such as sweets, pastries and margarine. This preserves the structure of the flower and keeps it flexible and lively.
The result is a flower that looks and feels like a fresh flower, but can be stored without water or special care.