Jacobus Doeser is primarily known for his colourful, expressive flower pieces on a large scale. However, he also painted portraits, still lifes, landscapes, seascapes and religious scenes. He lived in the artist's village of Laren from 1915 until 1919. From about 1920 until 1939 he lived in Leipzig, after which he resided in Bennebroek until 1969. Doeser took his artistic development into his own hands and developed independent of modern art movements. He was a member of the Amsterdam artist's societies Kunst Zij Ons Doel and St. Lucas.