Propagation
Divide the rhizome during spring and place in a warm humid environment for two months.

Botanic information
Leaf: The leaves are oblong to oval with a bright green upper surface that is ribbed in yellow-green. The underside is a grey-green to a purplish colour.

Flower: The spikes are composed of sheathed bracts on long scape and the tiny 3-lipped flowers appear in the opening of the sheaths. The irregular tubulate flower has 3-sepals and a 3-parted tubular corolla with a 3-celled inferior ovary.
The flowers appear in early summer.

Fruit: The small capsule is not commonly seen and the plant is normally reproduced vegetatively.

General cultural on Calathea species.

These plants require an average temperature of 10ºC (50ºF) to 15.5ºC (60ºF) avoiding sudden variations in temperature. They prefer a humid environment and respond to regular misting of the leaves. 
When grown indoor place in a position with bright indirect light as the colours in the leaves fades in direct light. 
Keep the soil moist not wet and use tepid soft water, reducing during the winter period.

If the plant forms brown and dry stunted growth it normally is the result of the air being too dry.
Excessive moist soils will cause rot at the base of the plant.