Propagation
Sow fresh seed during spring and maintain a temperature of 18º to 21º C. (64º to 75º F).
Semi-hardwood tip cuttings taken during summer apply bottom heat.
Air layering during spring.

Culture
It requires ample moisture during summer and prefers its roots to be in a moist shaded position.

Botanic information
Leaf: The pinnate leaves have 3 to 5 oblong to ovate leaflets that are up to 70mm (2⅔ in) long with an abruptly acuminate apex. The terminal leaflet is slightly larger and the upper surface has depressed pinnate veins and the petiole is up to 50mm (2in) long.

Flower: The funnelform flowers have a purplish toothed calyx and the petals are deep pink to purple and open with 5-lobes that are suffused in creamy-white. The inside is also whitish with pink veins. There are up to 24-blooms arranged in the raceme that is up to 300mm (1ft) long. The inflorescence appears on older mature leafless stems during early summer. 

Fruit: The small bi-valve follicle contains many thin winged seeds that are viable but the plant is commonly reproduced vegetatively. The flowering and fruiting period may vary in tropical regions.