Method for preserving flowers, particularly roses

A method for preserving natural flowers, the flowers having as well as attached stem, said method comprising severing the stems attached to the flowers such that the stem still connected to the flower is shorter than 5 cm and leaving a severed stem portion, immersing a lower end of the stem connected to the flower in a water/glycerol solution of a dry composition comprising 35-62% by weight mineral salts, 2-5% by weight citric acid and the remainder of said composition being at least one dye, the solution being maintained at a temperature between 33.degree. and 44.degree. C. and the immersion being for 3 to 7 days at an ambient air temperature of between 22.degree. and 28.degree. C. an at an ambient humidity less than 65% and, after immersion, storing the flower upside down for about 4 weeks at an ambient air temperature of between 20.degree. and 30.degree. C. and a relative humidity of less than 60%.