Light: Although most ferns grow in moist shady places like forest floors, this does not mean that they need no light. Their normal situation in the wild is dappled light, and if the light level in the home is too low, you will see poor growth and yellowing fronds. Give your ferns a position near a window that gets morning or late afternoon sun, and keep the ferns away from strong sunlight, especially during the summer. Direct sunlight will make them lose their leaves or turn their fronds yellow. You can keep your ferns in dim light as long as you give them regular breaks in bright light. They can be given artificial light, but this should be from a special gardening bulb or a fluorescent strip. Ordinary light bulbs generate too much heat.
Water: Most ferns like evenly moist soil with regular waterings. Allowing the soil to dry out between waterings stresses these plants. Bushy ferns can be difficult to water. Try using a watering can with a long spout to direct the water to the center of the plant. Water generously, until it drains out of the bottom of the pot.Temperatures: An individual fern’s place of origin and adaptability will determine how high or low temperature the fern needs. Most ferns don’t like cold. Those ferns from tropical regions truly appreciate 60-70 F (15-21 C.). Those from more temperate regions enjoy temperatures between 50-60 F. (10-16 C).