Frequent Van Gogh subjects often included irises, a six-letter word. The Dutch post-impressionist painter Vincent van Gogh was known for his use of vibrant colors and bold brushstrokes in his works. He often painted landscapes, portraits, and still lifes, but he was particularly fond of painting irises. He painted several versions of the flower, including 'Irises' in 1889 and 'Irises in Monet's Garden' in 1890.