This is a genus of around 60 evergreen plants from the tropics and sub-tropics. They have colourful funnel-shaped or bell-shaped flowers. They should be grown either in a glasshouse.

Species suitable for cultivation in a stovehouse include P.cathartica, P.hirsutula, P.learii and P.muabilis.

Species for the greenhouse include P.lindheimeri and P.tyrianthina.

The temperature should range between 18-24oC in the summer and 13-18oC in the winter. Water generously during the growing season buy moderate watering otherwise.

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