bird's-nest fern
Asplenium nidus
Epiphytic tropical fern with large, glossy, wavy fronds forming a central "nest"; popular, low-light houseplant preferring humidity and consistently moist, well-draining substrate.
Pet-Friendly Plant
Toxicity: non toxic
Asplenium nidus is considered non-toxic to cats and dogs (per ASPCA); ingestion may at most cause mild stomach upset in sensitive pets.
🌱Care Requirements
Light
Place the fern in bright, indirect light away from direct sun. Ideal spots are near east or north windows, or 1–2 m back from a south window behind a sheer curtain. Avoid hot afternoon sun which scorches fronds.
Water
Water when the top 2–3 cm of potting mix feels just slightly dry, usually every 7–14 days. Water evenly into the soil and around the crown; avoid letting cold water sit in the crown for long. Use room-temperature, filtered or rainwater.
Humidity
Prefers high humidity (60–80%). Use a humidifier, pebble tray, regular gentle misting, or group plants together to raise moisture and reduce dry air from heaters.
Temperature
Optimal 16–29°C (60–85°F). Avoid sustained temperatures below ~13°C (55°F), cold drafts, and hot radiators.
🔧Common Problems & Solutions
Brown, crispy frond edges
Cause: Low humidity, direct sun exposure, or underwatering
Solution: Increase humidity with a humidifier or pebble tray, move away from direct sun, and water more consistently. Trim damaged tips.
Yellowing fronds or soggy leaves
Cause: Overwatering or poor drainage causing root stress
Solution: Reduce watering frequency, repot into fresh, airy mix with good drainage, and remove affected fronds. Allow top 2–3 cm of soil to dry before watering.
Soft black roots or mushy base
Cause: Root rot from persistently waterlogged soil
Solution: Take plant out, trim rotten roots, let crown dry, repot in sterile, well-draining substrate and improve drainage; treat severe rot promptly.
Sticky residue or small insects on fronds
Cause: Scale, mealybugs or aphids attracted to weakened plants
Solution: Physically remove pests with a cotton swab and alcohol, use insecticidal soap or horticultural oil, and isolate plant until clear. Improve air circulation and plant vigor.
✂️How to Propagate bird's-nest fern
Propagate by division in spring or early summer. Remove plant from pot and gently shake away soil to expose the crown and roots. Identify natural crowns or growing points and separate using a clean knife if needed, ensuring each division has roots and several fronds. Pot divisions in a well-draining, airy mix (peat-based with perlite or orchid bark), water lightly, keep humid and shaded until new growth establishes. Avoid splitting too small; let divisions have adequate root mass.
🌍Origin & Background
Family: Aspleniaceae
Native to: Tropical Asia, eastern Australia and Pacific islands; common in wet lowland and montane forests.
Natural Habitat: Often epiphytic or terrestrial in moist tropical rainforests, growing on tree trunks or forest floors in shaded, humid understories with consistent moisture and filtered light.
🗓Seasonal Care Guide
Winter
Reduce watering frequency and avoid cold drafts; maintain humidity with a humidifier and keep plant in bright, indirect light indoors.
Spring
Increase watering as growth resumes, repot or divide if rootbound, and begin light fertilizing with a balanced, diluted feed.
Summer
Provide bright indirect light, higher humidity, and consistent watering; protect from intense afternoon sun and ensure good air circulation.
Fall
Gradually reduce fertilizing and slightly lower water frequency as growth slows; monitor humidity with indoor heating and adjust as needed.
❓Frequently Asked Questions
How often should I water my bird's-nest fern?
Water when the top 2–3 cm of soil is slightly dry, typically every 7–14 days depending on light and humidity.
Can bird's-nest fern tolerate low light?
It tolerates low to medium light but prefers bright, indirect light; avoid deep shade for long periods.
How do I increase humidity for my fern?
Use a humidifier, pebble tray, frequent misting, or group plants together to raise surrounding humidity.
Why are the frond edges turning brown?
Brown edges usually indicate low humidity, underwatering, or sun scorch; raise humidity and adjust watering and placement.
Is bird's-nest fern safe for pets?
Yes—Asplenium nidus is considered non-toxic to cats and dogs, though large ingestion may upset the stomach.
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Last updated: 11/7/2025