 The experiment compared the fruit quality of several 16-year-old ecotypes of Cornelian cherry in Poland, including their beginning of ripening, fruit size, shape index, stone content, SSC, TA, reducing sugars, dry matter, and anthocyanins content. The fruits began to mature in August, with the earliest maturing ecotype having big round fruits, dark red color and high anthocyanins content. These findings suggest that these studied ecotypes could be used in breeding programs to create a final Cornelian cherry cultivar with a wide range of quality and agronomic characteristics. This article was authored by Iwona Shot, Paol Shot, Tomasz Lipa, and others.