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Asian Jack In The Pulpit

Arisaema thunbergii

Asian Jack In The Pulpit
Photo: C T Johansson, CC BY-SA 3.0

Asian jack-in-the-pulpit is a tuberous woodland perennial from Japan, Korea and Taiwan, grown for its hooded spathe and striped leaves. It needs shade, moist humus-rich soil and a winter dormancy period.

Family
Araceae (Arum family)
Grows as
Bulb
Light
Part shade, Shade
Water
Keep soil evenly moist during the growing season and reduce watering after the foliage dies back.
Soil
Humus-rich, well-drained woodland mix with plenty of leaf mold.
Temperature
10–25 °C; tolerates winter cold and needs a dormant period.
How easy
Moderate
Safety
Toxic: All parts contain calcium oxalate crystals, which cause burning, swelling and irritation of the mouth and throat if eaten or chewed.
Native range
S. Korea, Japan
Climate
subtropical

About

Arisaema thunbergii, commonly known as Asian jack-in-the-pulpit, is a plant species in the family Araceae. It is native to Japan, southern Korea, and Taiwan. In Japan it grows at elevations of 20–100 meters. The plant is poisonous as all parts contain calcium oxalate.

Other Arisaema plants

Florida Jack In The Pulpit · Amur Jack In The Pulpit · Arisaema attenuatum · Arisaema barnesii · Arisaema candidissimum · Arisaema ciliatum · Himalayan Cobra Lily · Arisaema decipiens · Green dragon · Arisaema erubescens · Arisaema fimbriatum · Yellow Cobra Lily

Text excerpted from the Wikipedia article Arisaema thunbergii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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