Licensed representative photographPlant Guide
Boston Fern
Nephrolepis exaltata
Other known names: Sword Fern
An arching fern that prefers consistent moisture, filtered light, and protection from hot dry air.
Published source-backed guide. This guide meets Lorekeeper's published source, care-completeness, safety, and identity checks. It is source-backed, not an expert-review claim.
Safety not yet verified. Confirm the exact identification before deciding whether this plant is safe around children or pets. Catalog note: No toxicity claim is added in this provisional batch; confirm pet questions with a trusted veterinary source.
Care
- Light
- Medium to bright indirect light.
- Water
- Keep the root ball lightly moist without leaving the pot in water.
- Growing medium
- A loose organic mix that holds moisture and drains.
- Feeding
- Feed weakly during active growth.
- Temperature
- 55-80 F.
- Humidity
- Moderately high humidity with airflow.
- When to consider watering
- Check below the surface and respond before the root ball becomes completely dry.
- Watering method
- Keep the root ball lightly moist without leaving the pot in water. Wet the root ball evenly and never leave drainage trapped in a cachepot.
- Repotting
- Repot only when roots, drainage, stability, or broken-down medium justify it; increase the pot size modestly.
- Pruning
- Remove damaged growth with clean tools and avoid unnecessary pruning during stress.
- Beginner note
- Treat reminders as prompts to observe. Record what you found, then complete, snooze, pause, or adjust the care item.
Observe the plant and growing medium before acting. A reminder is a prompt to check, not an automatic instruction to water.
Characteristics
An arching fern that prefers consistent moisture, filtered light, and protection from hot dry air.
Names & botanical identity
- Accepted name
- Nephrolepis exaltata
- Plant family
- Nephrolepidaceae
- Plant group
- Ferns
- Other known names
- Sword Fern
- Safety
- Safety not yet verified
Confirm the exact identification before deciding whether this plant is safe around children or pets. Catalog note: No toxicity claim is added in this provisional batch; confirm pet questions with a trusted veterinary source.
Growth
- Growth habit
- Clumping fern with arching fronds.
- Mature size
- 2–3 ft tall × 2–3 ft wide at maturity
- Native range
- Tropical and subtropical Americas.
- Temperature
- 55-80 F.
- Humidity
- Moderately high humidity with airflow.
- Difficulty
- Intermediate
Propagation
Divide rooted sections or runners.
When you add a propagation to Lorekeeper, connect it to the mother plant so its history and lineage remain intact.
Problems to recognize
These links describe possible or look-alike relationships, not a diagnosis. Start with visible evidence and rule out alternatives.
- Spider mites: Fine fronds can conceal early stippling and webbing.
- Excess moisture / root stress: Both severe dryness and damaged wet roots can brown fronds.
- Fungus gnats: Consistently moist organic media may support fungus gnats.
History & lineage
The Boston fern is a cultivated form associated with Nephrolepis exaltata and became a familiar hanging-basket plant in the late nineteenth and early twentieth centuries.
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Save Boston Fern to your garden.
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