Gladiolus (Gladiolus hybridus, C.Morren) is a plant species suitable for the planting of beams that have come from homes in the southern parts of Africa and in the area around the Mediterranean. The name was derived from the Latin word gladius which translates to the sword. This name was obtained because of its shape of growth, saber leaves and flowers, tall, narrow and upright, proud and attached to the sword. Gladiola is a plant that grows from the tuber, and depending on the variety it grows from 30 cm up to 150 cm. The flowers are beginning to open in early July until the first fires occur. The flower breaks down for about two weeks. Gladiols have always been used as cut flowers, so they decorate households. Except for planting, they are also used for decorative purposes in the food industry for making desserts and as poutpourri or dried petals which, with the addition of spices, give the room a pleasant smell but also the look that was the goal of the work. By convection drying in the dehydrator, we investigated the effect of self-drying on further processing of gladiolus petals. After the collection of flower patterns, the drying process was started. Natural and thermal-treated petals determined the total ash and oil content, and the color of the petals after thermal finishing. The study was conducted for the purpose of obtaining ash content, amount of water, shrub and fat in petals of the knees, measuring the rate of release of water in the petals and the change of color depending on the drying temperature. Drying was carried out at three temperatures at 40°C, 50°C and 60°C. In this study, gladioli were used in white, red and green color. During the drying of the gladioli it was found that the highest percentage of fat was visible at 60°C, while the highest starch value had samples dried at a temperature of 40°C. The ash content decreased by dehydration, and the intensity of the color did not change significantly.