Sword fern (Nephrolepis abrupta)
Care, watering, light and tips for Sword fern on Floravia.
Quick facts
- Family: Nephrolepidaceae
- Difficulty: Moderate care
- Watering: every 3 days
- Light: Partial shade
- Temperature: 10–30 °C
About Sword fern
Nephrolepis abrupta, or Abrupt Sword Fern, is a medium-sized terrestrial fern characterized by its erect, densely branched, pinnate fronds that can grow 60-90 cm long. Its bright green leaflets have a slightly undulate margin, giving it a lush and bushy appearance. It's an excellent choice for adding a touch of freshness and natural beauty indoors, particularly in hanging baskets or as a floor plant in terrariums and winter gardens.
Native range
Tropical America, including southern Mexico, Central America, and the Antilles.
Care tips
This fern thrives in bright, indirect light, avoiding direct sun which can scorch its fronds. Keep the soil consistently moist, but not waterlogged, and ensure high ambient humidity, which can be achieved through regular misting or a humidifier. Use a well-draining, organic-rich substrate, specifically formulated for ferns. A common mistake is allowing the soil to dry out completely, leading to wilting and browning of the frond tips.
How to save a dying Sword fern
- Warning signs
- Dry or brown leaves, especially at the tips, and excessive frond drop. Very dry soil.
- First aid
- Submerge the pot in lukewarm water until it stops bubbling. Mist its leaves with chlorine-free water.
- What kills it
- Dry air and lack of constant ambient humidity. Also intense direct sunlight.
- Can it be saved?
- Yes! They are resilient. With proper humidity and watering, it will recover.