Growing Tree Ferns

Tree Ferns thrive in bright, indirect light, and moderate to high humidity (see below for ways to increase humidity around your plant). From spring to fall, keep soil evenly moist and apply a balanced (20-20-20) houseplant fertilizer monthly; in winter, water when the top ½" of the potting mix is dry.

Humidity: Most houseplants are native to tropical or subtropical regions of the world, where relative humidity is typically very high. They suffer in the dry air produced by furnaces and woodstoves. The best way to increase the humidity around your plants is to run a humidifier nearby. You can also set plants in trays filled with pebbles or gravel. Add water to a level just below the tops of the pebbles (if the potting mix in the pots comes in contact with the water, the mix will draw water into the pot, which will cause the mix to become saturated, eventually leading to rot). Refill trays frequently to replace water lost through evaporation. (Our Humiditrays perform the same function without the need for pebbles.)

Email Sign Up

Subscribe to enjoy gardening advice, email offers & more