Amorphophallus konjac aka Devil's Tongue

Taxonomy

Amorphophallus konjac, commonly known as konjac or konjak, is a tuberous perennial plant native to Yunnan, China, and found in warm subtropical to tropical regions of East and Southeast Asia. It has a large corm and a single leaf that can reach up to 1.3 meters in diameter, with numerous leaflets. The plant produces flowers on a dark purple spadix enclosed by a spathe, growing up to 55 cm long. It is also referred to as voodoo lily, snake palm, or elephant yam. The corm of Amorphophallus konjac is widely used in Asian cuisine, particularly in China, Japan, and Korea, where it is known as konnyaku or yam cake. It is cooked and consumed, and there are two main types of konnyaku cake: white and black. Additionally, noodles made from konnyaku are called shirataki. It is important to note that the konjac corm is colloquially referred to as a yam, although it is not related to the tubers of the Dioscoreaceae family. In terms of appearance, Amorphophallus konjac produces a single flower during summer, characterized by a shiny, red-purple spathe and a tall, paddle-like, brown spadix. The plant emits an unpleasant smell to attract pollinating flies. After the flower fades, a highly divided leaf emerges, featuring bright green leaflets and a stout, olive-green stem with white markings. Voodoo Lily, as it is also known, is an easy-to-grow plant that goes through a dormant period. Despite its smell of rotten meat during flowering, it is frequently used as an ornamental plant. Found in tropical East Asia from Japan to Indonesia, it thrives in open spaces, forest margins, thickets, and secondary forests, often at high altitudes above sea level.

Common names

Devil's Tongue, Elephant Yam, Konjac

How to care for Devil's Tongue

Difficulty

Devil's Tongue presents a moderate level of care, which allows plant enthusiasts with some experience to expand their skills and knowledge.

Water

Devil's Tongue should be watered regularly, allowing the soil to dry out between waterings.

Soil

Devil's Tongue loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

Lighting

To ensure optimal growth, the Devil's Tongue prefers bright diffused light for 6-8 hours each day. Insufficient light can result in slow growth and leaf drop, so it's important to find a well-lit location for this plant. Place it near a window, within a distance of 1 meter (3 feet), to enhance its potential for thriving.

Toxicity

Devil's Tongue is poisonous if ingested. We suggest keeping this plant out of reach if you have children, cats, or dogs in the home.

Growth-pattern

Devil's Tongue grows vertically and new growth emerges from the top of the plant.

Region of origin

Devil's Tongue’s native range is E. Asia - southwest China.


More info:
Wikipedia