Coreopsis tinctoria Nutt. as a source of many colours

Introduction: Coreopsis tinctoria Nutt. is an annual plant with small flowers in yellow and claret. In dyeing process, a whole range of colours can be obtained using various methods. Objective: The aim of the study was to present a wide range of colors of the little-known plant C. tinctoria. and its health promoting properties. Methods: In our research, we selected 3 types of wool: Polish Merino, Żelaźnieńska, and Polish Lowland Sheep and compared the colours obtained on these wools using 6 dyeing methods. Results: The results indicate that the basic colour of wool influences the intensity of colour after dyeing as well as the type of the used mordant, which determines the obtained colour. A whole range of very intense colours was obtained from very small flowers of C. tinctoria. Conclusions: Flowers are a very good and efficient raw material that gives intense colors on wool. An additional advantage is the plant's health-promoting properties. The plant is still little explored in this respect.