Boston Fern (Nephrolepis exaltata 'Bostoniensis')

Boston Fern

Nephrolepis exaltata 'Bostoniensis'

Fronds arch softly like green waterfalls, bringing calm to indoor spaces. Evergreen fern; common name: Boston Fern.

Partial sun
2–3/week
Beginner
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Plant Needs

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Sunlight Bright indirect light; avoid direct midday sun which can scorch delicate fronds
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Watering Keep soil consistently moist but not waterlogged; avoid letting the root ball dry out completely
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Temperature Thrives in 16–22°C; avoid cold drafts and sudden temperature drops below 10°C
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Characteristics

  • Frond: Long, arching, finely divided pinnate fronds with bright green, delicate leaflets
  • Rhizome: Short, creeping rhizome with small, brown scale-like protective structures
  • Sori: Clusters of spore cases on the underside of mature leaflets for reproduction
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Care Guide

Watering

Keep soil evenly moist; mist fronds 2–3 times weekly to boost humidity

Fertilization

Diluted balanced feed every 4 weeks. Avoid over-fertilization, which can cause brown frond tips

Banana peel compost tea:Soak fully composted banana peels in water for 3 days; dilute 1:20 for root drench; avoid raw peels to prevent mold growth
Pruning
  • Trim brown, dead frond tips with sharp scissors to maintain neat appearance
  • Remove fully browned fronds at the base to improve airflow and redirect energy to healthy growth
  • Divide overcrowded clumps in spring for propagation
  • Groom fronds regularly with a soft brush to remove dust and prevent pest buildup
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA verified non-toxic; no adverse effects from ingestion or contact

Humans: Non-toxic; safe for handling and accidental ingestion

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Garden Uses & Culture

Culture: Symbolizes purity and humility; popular in Victorian-era indoor garden displays

Usage: Ornamental hanging plant; helps filter formaldehyde and xylene from indoor air