Hemerocallis middendorffii var. esculenta, commonly known as Nikkokisuge or Zenteika, is a perennial herb that is native to the wet meadows and stream banks of Japan, particularly in the highlands. It typically grows to a height of 18-24 inches (45-60 cm) and spreads to a similar width. This daylily features strap-shaped leaves and produces clusters of trumpet-shaped, bright yellow flowers in early summer. The blooms are showy and last for just one day, which is characteristic of the genus Hemerocallis.

Nikkokisuge is valued for its bright, cheerful flowers and is often used in ornamental gardens for mass plantings, borders, and as a ground cover. It thrives in full sun to part shade and prefers moist, well-drained soils. While it is generally low maintenance, it benefits from division every few years to maintain vigor. In Japan, it holds cultural significance and is frequently depicted in art and gardens. It is also known for its edible flowers, which are used in Japanese cuisine. Potential problems include daylily rust and crown rot, but these are generally not severe if proper care is given.CC BY-SA 4.0