They grow best with the morning light from an east window. They do well in warm to average room temperatures. The ideal temperatures are 60 to 65 F at night and 75 to 80 F during the day. Water rubber trees thoroughly, but let the soil dry somewhat between waterings. The soil mix should be a well-drained houseplant mix.
Rubber trees prefer humid conditions, but tolerate the dry air common in homes.
Fertilize regularly with a water-soluble houseplant fertilizer during active growth. Plants that are in lower light should be fertilized less often. Rubber trees may grow tall and lanky indoors. You can support them with a stake or prune them in spring to rejuvenate. Propagate new plants by stem or tip cuttings or air layering.