Sweet William (lat. Dianthus barbatus) is a herbaceous plant from the carnation family (Caryophyllaceae). It is grown for its appearance and is one of the most commonly used flowers in arrangements. The appearance of cut flowers, leaves and the whole plant deteriorates rapidly due to biochemical changes and the action of microbes. The purpose of drying flowers is the possibility of retaining their beauty and aesthetic appeal for a long time. The attractive color of the flower is one of the characteristics that is exploited in the decorative industry and can have a great impact on the economic value of plants, which is why we create new colors. For the purposes of this research, carnation cultivars with red, white and pink petals were used. Petals were dried at three different temperatures (40°C, 50°C, 60°C) and their quantitative properties were determined after drying in a dehydrator and vacuum dryer, and after coloring with food and textile dyes. It was determined that darker flowers contain a higher percentage of water than lighter ones. The fastest and most adequate drying is at a temperature of 60°C in a vacuum dryer and the most suitable samples for the decorative industry are carnations dried in a vacuum and colored with food coloring