Iris flavescens, commonly known as the Lemon-yellow Iris, is a perennial herb with a rhizomatous growth habit, featuring distichous leaves and pale yellow flowers that are less vibrant than those of Iris sambucina. It is a hybrid of garden origin, likely resulting from a cross between European and Asian species. This iris typically reaches a height of 12 to 24 inches (30 to 60 cm) and blooms in late spring to early summer. The flowers are modestly showy, with each stem usually bearing multiple blooms.

The Lemon-yellow Iris is valued for its soft yellow flowers and ease of maintenance, making it a suitable choice for herbaceous borders and wildflower gardens. It thrives in full sun to part shade and prefers moist, well-drained soils. While it is not commonly used in culinary or medicinal applications, it can provide a naturalistic aesthetic in garden designs. Gardeners should be aware that Iris flavescens can spread vigorously and may become invasive in some regions. It is advisable to manage its growth to prevent unwanted spread.CC BY-SA 4.0