Nephrolepis exaltata

How Often to Water a Boston fern

Boston ferns dry out fast and punish it with crispy fronds. They want soil that stays evenly moist, plus humid air, which makes them one of the thirstier houseplants.

Your boston fern

Your answer

Water when the soil reaches this point

How it shifts through the year

Thirsty signs

  • Fronds turn brown and crisp from the tips
  • Leaflets drop in showers when you touch the plant
  • Soil is dry and light

Overwatered signs

  • Fronds yellow and the base turns brown and soft
  • Soil stays soggy with a sour smell
  • New growth stalls

Watering tips for boston fern

Common questions

How often do you water a Boston fern?

More often than most houseplants, usually every few days to once a week depending on light and season. Check by touch.

Why is my Boston fern dropping leaflets?

Dry soil and dry air are the usual causes. Keep the soil evenly moist and move it away from heat sources.

Tools that help

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Related guides

Estimates use rules of thumb. Always confirm with your finger: push it about an inch into the soil before you water.