Amorphophallus konjac

Amorphophallus konjac must be one of the most commonly cultivated Amorphophallus species in the world, both as an ornamental plant and as an important crop. In many parts of the world the tubers are harvested and ground down for the production of a type of flour. For the UK, this is one of the best, and easiest, Amorphophallus species to grow, being perfectly happy in moderate temperatures.

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Description

Amorphophallus konjac must be one of the most commonly cultivated Amorphophallus species in the world, both as an ornamental plant and as an important crop. In many parts of the world the tubers are harvested and ground down for the production of a type of flour. For the UK, this is one of the best, and easiest, Amorphophallus species to grow, being perfectly happy in moderate temperatures of 15 – 25 degrees C.

Ultimately, the tubers can become very large with a diamter of 30cm and weigh 10kg! Tubers with a diameter of 8 – 10cm are capable of flowering. Tubers of this size are highly sought after and command high prices.

Amorphophallus konjac produces a single, ornate leaf on a petiole up to 1m tall. If the tuber is large enough and contains enough food reserves, it will produce a remarkable inflorescence on top of a tall stem. Once seen, this is a flower you’ll never forget! Spathe colour is brownish on the outside and bright purple on the inside. And as for the smell, well, it’s best left unmentioned!

Amorphophallus konjac is very easy to overwinter. Simply dig up the tubers, dry them off, and store frost free until growth resumes the following year. Small offsets are produced seasonally.

This species is often seen for sale under the name amorphophallus rivieri. This name is long since out of date!

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