Resurrection fern

Resurrection fern (Pleopeltis polypodioides) is a perennial epiphyte belonging to the Polypodiaceae family. It is widely recognized by botanists and horticulturists for its remarkable physiological adaptation: the ability to curl up and turn brown during drought, appearing dead, yet returning to a lush green state within hours of rehydration.

This species is native to the Americas, ranging from the southeastern United States through the Caribbean and down to parts of South America and Africa. As an epiphyte, it commonly grows on tree branches, particularly on oaks, though it can occasionally be found on rocks, demonstrating its versatility as a lithophyte in specialized habitats.

Botanically, the plant features a creeping rhizome and fronds that are typically pinnatifid. The underside of the fronds is covered in small, silver-brown scales which play a crucial role in water retention and nutrient absorption from the air. These biological adaptations allow the fern to thrive in areas where water availability can be highly inconsistent.

Cultivation requires replicating these specific conditions. In an indoor or greenhouse setting, the plant should be grown on mounts (such as wood slabs or tree fern fiber) or in highly porous media. It demands high ambient humidity and excellent air circulation to prevent rot, while direct sunlight must be avoided to prevent thermal stress on the fronds.

• Bright, indirect light is essential for healthy growth.
• High humidity levels are required for optimal physiological function.
• Mounting on bark or using orchid-grade bark mix is recommended.
• Light misting with distilled or rainwater is preferred over heavy soil watering.
• Monitoring for occasional pests like mealybugs or spider mites.

In terms of agricultural and horticultural use, this fern is a staple in terrarium building, vertical green walls, and specialized botanical displays. While relatively resistant to major plant pathogens, it is susceptible to root rot if kept in saturated conditions. Its resilience and unique "resurrection" trait make it a highly valued specimen for botanical collections worldwide.