Rubber plants like bright light and a lot of it, but not direct sunlight. A sunny spot shielded by a sheer curtain is often perfect for rubber plants. You can tell if your rubber plant needs more light if it becomes leggy, its leaves lose their luster, and lower leaves fall off.
Rubber plants’ water needs vary according to season: In the growing season (summer), the plant should be kept moist. This includes wiping the leaves with a damp cloth or even misting them. During the dormant season, your plant may only need water once or twice a month. Watch for droopy leaves, which indicate a need for more water. Leaves that turn yellow and brown and drop signal over-watering.
Mist during any season if they air is too dry, especially heated dry air like that which might occur during winter indoors.