Boston Fern

Lush, pet-safe and perfect for a humid bathroom with a window.

Nephrolepis exaltata

A Boston fern growing in a greenhouse

A Boston fern growing in a greenhouse. Photo: Kor!An (Корзун Андрей), CC BY-SA 3.0, via Wikimedia Commons.

Light

Boston Fern tolerates: medium / indirect, bright indirect or some sun. Put it within a few feet of a window; a dark corner will make it weak and leggy.

Watering

Keep the soil evenly moist — never bone dry. Check every 2–3 days in summer.

Is boston fern safe for cats and dogs?

Non-toxic to cats and dogs. Source: ASPCA — Boston Fern.

Size and humidity

Typical size indoors: 1–3 ft (30–90 cm) wide. Humidity: likes it humid — a bathroom with a window or a pebble tray helps.

Top tips

  • Crispy fronds = too dry (soil or air).
  • Great on shaded porches in summer.
  • Trim brown fronds at the base.

Guides that mention the boston fern

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