Propagation
Sow fresh seed during spring and maintain a temperature of 19º to 27º C. (66º to 81º F).
Division of the rhizome, including a growing tip during spring.

Botanic information
Leaf: The large oblong leaves have a slender petiole that is up to 1.5m (5ft) long and is sheaved at the base. The apex is abruptly acuminate and the mid-rib and petiole are yellow-green.

Flower: The green tubulate flowers are accompanied by a long narrow bright pink bracts that have recurved margins. There are several are  spirally arranged on a yellow rachis that is up to 1m (3ft) long. Each bract contains 5-flowers with apple-green tepals and a bright yellow pedestal. 
The flowering period is in spring but can vary in tropical regions and they may appear throughout the year.

Fruit: 

Culture
All plants in this genus require abundant moisture during the growing season and rich humus rich soil. They tolerate some cooler weather but prefer a hot humid environment. 

It the soil becomes frozen the plant dies off but if it is not too severe the rhizome will re-shoot. The flowers only appear on 2-year old growth and under cold conditions it may never flower. 

If grown in containers use a peat base sandy mix and use a balanced liquid fertiliser during the growing period and reduce watering during winter.