'Crimson King' is an exquisite iris that has been enchanting gardeners since its introduction prior to the registration system. Although its specific hybridizer is not mentioned, this iris has a rich history dating back to 1893. Classified as an Intermediate Bearded (IB) iris, it brings early-season beauty to the garden. With its deep purple blooms, 'Crimson King' stands out with its striking coloration. The flowers exhibit a bitone pattern, adding depth and visual interest. The fragrance of this iris is pronounced and sweet, making it even more captivating to the senses. As a perennial plant, 'Crimson King' thrives in full sun to partial shade, adapting well to different light conditions. It has versatile water preferences, ranging from mesic (moderate moisture) to dry mesic. In terms of soil pH, it can tolerate slightly acidic, neutral, and slightly alkaline conditions. In terms of cold hardiness, 'Crimson King' is known to withstand temperatures as low as Zone 3 (-40 °C/-40 °F), making it suitable for colder climates. Its maximum recommended zone is Zone 8b, indicating its adaptability to various regions. This iris produces showy and fragrant flowers that are a delight to behold. Its rhizome serves as the underground structure responsible for its growth and propagation. While it can be propagated through division, it does not come true from seed. 'Crimson King' has also given rise to three child plants, adding to its legacy and impact in the iris world. With its timeless charm and enduring beauty, 'Crimson King' continues to be cherished by gardeners for generations.