Giant Sword Fern (Nephrolepis biserrata)

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Sunlight Bright indirect light; tolerates deep shade, avoid direct midday sun which scorches frond leaflets

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Watering Keep soil consistently moist but not waterlogged; avoid allowing the rootball to dry out completely

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Temperature Thrives in warm, humid conditions; protect from temperatures below 10°C which cause frond browning

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Frond: Long, arching, pinnately compound fronds with finely serrated leaflets
Rhizome: Creeping, scaly rhizomes with stolons for vegetative propagation
Sori: Clusters of spore cases on undersides of mature leaflets, aligned near the midrib

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Watering

Keep substrate evenly moist, mist fronds 2–3 times weekly to boost humidity

Fertilization

Diluted balanced liquid feed every 4 weeks. Cease fertilization in autumn and winter when growth slows

Banana peel tea：Soak chopped banana peels in water for 3 days, dilute 1:10 with water for root drench; discard solid peels to avoid pest infestations

Pruning

Trim brown, damaged frond tips with sharp, clean shears to improve appearance
Remove fully dead fronds at the base to redirect energy to new growth
Divide overcrowded rhizomes in spring for propagation; repot when roots emerge from drainage holes

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Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no harmful effects if ingested

Humans: Non-toxic to humans; no known adverse effects from ingestion or contact

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Culture: N/A

Usage: Ornamental foliage for indoor shaded areas, hanging baskets, and outdoor tropical shade gardens