Boston fern (Nephrolepis brownii)
Care, watering, light and tips for Boston fern on Floravia.
Quick facts
- Family: Nephrolepidaceae
- Difficulty: Moderate care
- Watering: every 3 days
- Light: Partial shade
- Temperature: 10–30 °C
About Boston fern
Nephrolepis brownii, or 'Brownii' Boston Fern, is a robust and attractive sword fern variety, known for its arching, dense, bright green fronds. It's an excellent choice for adding a touch of lush greenery to interiors, either in hanging baskets or in pots on pedestals where its fronds can cascade freely. Its dense foliage and elegant habit make it ideal for creating a natural and relaxing atmosphere.
Native range
Tropical Asia and Polynesia
Care tips
This fern thrives in bright, indirect light; avoid direct sunlight which can scorch its fronds. Keep the substrate consistently moist, but not waterlogged, watering when the top layer of soil begins to dry, and it benefits from high ambient humidity. Use a well-draining, organic-rich substrate, ideally a fern mix. A common mistake is allowing the substrate to dry out completely between waterings, which can lead to yellowing and shedding of fronds.
How to save a dying Boston fern
- Warning signs
- Yellow or brown, dry and crispy leaves; weak and drooping stems; stunted growth.
- First aid
- Move to a shady spot, mist leaves with water, and water if soil is dry. Prune severely damaged fronds.
- What kills it
- Dry air, lack of humidity, and direct sun. Also overwatering if soil drains poorly.
- Can it be saved?
- Yes! With humidity and shade, sword ferns are surprisingly resilient. You'll see new growth.