The Himalayan cobra lily is a striking arum native to the Himalayas, China and South-East Asia. The species grows there in damp mountain forests and along forest edges at higher altitudes. It is particularly the unusual inflorescence that makes this plant popular amongst lovers of exotic garden plants. The long, narrow spathe is usually green to purple-striped and tapers into a striking, thread-like tip that can sometimes grow to tens of centimetres in length.
After flowering, the plant forms a characteristic leaf consisting of several narrow leaflets arranged in a circular pattern. In favourable conditions, the species can reach a height of approximately 1 to 1.5 metres. Later in the season, bright red berries may appear, provided the flowers have been successfully pollinated.
The species grows best in humus-rich, well-aerated soil that remains constantly slightly moist. A position in partial shade or light shade is recommended, for example under trees or shrubs. Arisaema consanguineum is reasonably hardy and can overwinter in the open ground across much of Western Europe, provided the soil remains well-drained during wet winter periods. During the winter, the plant dies back above ground, only to sprout again from the corm in the spring.
Sowing instructions: The corm can be planted directly in a well-aerated soil mix. Keep the soil slightly moist and ensure temperatures of around 20–25 °C during the initial growth phase. Place the young plants in a bright spot without direct sunlight.