Rabbit's Foot Fern (Davallia fejeensis) – to 24″, This house plant fern has attractive, deep-green fronds that can grow to two feet long. The fronds rise from hairy rizomes that creep along the surface of the soil and often grow so long they hang over the edge of the pot. The rhizomes are covered in light brown hairs and resemble a rabbit's foot, hence the common name. It's an easy-to-grow fern that can tolerate a wide range of conditions including low light and cool room temperatures. If temperatures drop below 55 degrees, it will drop its fronds, but as soon as temperatures rise above 55 degrees, it will grow new fronds. A live plant in a four-inch pot.