Pteris ensiformis, the slender brake, silver lace fern, sword brake fern, or slender brake fern, is a plant species in the genus Pteridoideae subfamily of the Pteridaceae. It is found in Asia and the Pacific.
The Pteris genus includes a huge variety of species, mostly ranging from the tropics and subtropics, although there are a few temperate species. Collectively known as brake ferns, many have flat, pinnate fronds that hardly resemble the traditional idea of a fern. The most popular ones for indoor cultivation tend to be relatively tough plants, often with beautiful variegation that makes them look harder to grow than they actually are. In fact, and especially for ferns, these tend to be fairly tough plants that require only adequate moisture and protection from very dry air (both in summer and winter) to do well. The smaller species make excellent tabletop plants.
Pteris ferns are not overly demanding when it comes to water, although like most ferns they do require ample humidity. For best results, mist your winter plants daily. They also don't like being waterlogged, and plants that are allowed to sit in saturated or soggy soil will quickly succumb to root rot.
They prefer bright, filtered light throughout the summer months when they are actively growing. During the winter months, try to provide as much light as possible, short of direct mid-day sunlight. Although there are some deciduous varieties, the most commonly grown are evergreen and should not drop leaves during the winter.
This plant can be grown in a container. Choose a pot with enough drainage holes. These are relatively fast growing ferns and should be repotted every spring. Place the pot on a saucer filled with gravel and water to ensure proper humidity.
