Arisaema thunbergii, commonly known as Asian Jack-In-The-Pulpit, is a deciduous perennial herb native to forest understories and shaded areas in East Asia, including Japan, Korea, and Taiwan. It typically grows to a height and width of 1-2 feet (0.3-0.6 meters). The plant is characterized by its unique inflorescence, a hooded spathe that is purple and white, often with stripes or spots, which surrounds a central spadix. The flowering season is in spring, and while the flowers are not particularly showy, they are intriguing and have a distinctive appearance. The foliage is also attractive, with large, trifoliate leaves that add texture to garden settings.

Asian Jack-In-The-Pulpit is valued for its exotic-looking flowers and foliage, which can add a touch of the unusual to shade gardens and woodland settings. It is often used in cultivation for border planting, as an accent in shaded areas, or in naturalized woodland gardens. This plant prefers part shade to full shade and requires consistently moist soil with good drainage. It is relatively low maintenance but benefits from the addition of organic matter to the soil. While generally disease-free, it can be susceptible to root rot if overwatered or planted in poorly draining soils. It is important to note that all parts of Arisaema thunbergii are toxic if ingested, so care should be taken if planting in areas accessible to pets or children.CC BY-SA 4.0