Which wallpaper designs showed William Morris’s mature style?

William Morris did not reach his mature style in wallpaper design until approximately 10 years after his initial work in the early 1860s. His mature style is exemplified by the "Jasmine" and "Marigold" paper designs.1

While his earliest patterns from 1862–1864—such as "Trellis," "Daisy," and "Fruit" (or "Pomegranate")—marked the beginning of his contribution to the Arts and Crafts movement, these works were characterized by flat, stylized, naturalistic patterns and rich, subdued colours.21