From spring to autumn, position plants in a brightly lit situation out of direct sunlight, such as on an east or west-facing windowsill. In the winter due to low light levels a south-facing windowsill is suitable.
The minimum temperature required is 18-24°C (65-75°F) by day and 16°C (60°F) by night. Avoid cold draughts and sudden changes in temperature.
It is essential to provide humidity around the plant by standing the pot on a saucer filled with gravel, expanded clay granules (Hydroleca) or recycled lightweight aggregate (Hortag). Keep the water level just below the surface of the gravel or aggregate.
Keep compost moist but wait until the surface of the compost is dry before watering. Bear in mind the moisture-retaining qualities of the compost and avoid watering too frequently.
Use water at room temperature. Do not let the water come in contact with the leaves, especially cold water direct from the tap, as it will chill plants and can mark the leaves.
Supplementary feeding can be carried out using a dilute liquid feed at three to four week intervals during spring and summer when plants are actively growing.
Root growth is fibrous and a good percentage of organic matter is required, therefore pot into John Innes No.2 compost, with 30 percent by volume added peat substitute. Alternatively use specialist houseplant compost.
Repotting of established plants is usually necessary only after two to three years and should be carried out in spring. Use 9-10cm (3½-4in) pots for final potting, but for growing very large plants and for the most aesthetically pleasing effect, shallow 12cm (5in) pots or pans may be used.