Nephrolepis exaltata

Genus & species | Common name:
Nephrolepis exaltata | Boston Fern / Sword Fern — “Sword” from the long, arching fronds; “Boston” from its popularity as a houseplant in Boston.

How to grow:
Grow in hanging baskets or pots in humid, bright but shaded areas. Mist regularly and water when the surface feels dry. Best for indoor corners and balconies.

Growing requirements:

• a) Water: Frequent, keep evenly moist
• b) Soil / substrate: Loose, rich, moisture-retentive, well-aerated
• c) Humidity: High (>60%)
• d) Sunlight: Indirect to filtered light (5,000–12,000 lux); 10–20W grow light
• e) Temperature: 18–26°C

Growth habit:
Rhizomatous with stolons (runners)

Growing season & conditions:
Spring to early autumn; dormant in dry winters

Acclimatization on transport:
Fronds may shed; roots are resilient and regrow with care

Fun fact:
Used in NASA’s Clean Air Study for its ability to purify indoor air—popular in Indian homes for its Vastu compliance and cooling presence.