Boston Fern

Nephrolepis exaltata

houseplant

verifiedReviewed by the GreenScout Team

Boston Fern is a classic houseplant featuring delicate, feathery fronds that arch gracefully from the center, creating a lush, fountain-like appearance. This tropical fern is a champion air-purifier and thrives in humid environments such as bathrooms and kitchens. While it requires consistent moisture and humidity, the effort is rewarded with fast, vigorous growth and attractive, vibrant green foliage.

Common Problems

Select the problem your Boston Fern is experiencing to get a treatment guide.

local_fire_department

Brown Tipschevron_right

warning

Yellow Leaveschevron_right

trending_down

Wiltingchevron_right

south_west

Dropping Leaveschevron_right

sync

Curling Leaveschevron_right

hourglass_bottom

Slow Growthchevron_right

Care Guide

light_mode

Light

Prefers bright, indirect light; place in an east or north-facing window. Tolerates moderate indirect light but slow growth in low-light conditions. Avoid direct sun which scorches fronds.

water_drop

Water

Keep soil consistently moist (never soggy) by watering when the top half-inch of soil feels dry. Water with distilled or rainwater if possible to prevent mineral accumulation.

compost

Soil

Use a light, airy peat-based potting mix or fern-specific soil that retains moisture while allowing good drainage. A mix of peat, bark, and perlite works well.

science

Fertiliser

Feed every 2–4 weeks during the growing season (spring through summer) with a balanced, diluted liquid fertilizer. Reduce frequency in fall and winter.

thermometer

Temperature

Prefers warm temperatures between 65–75°F (18–24°C). Avoid cold drafts and temperatures below 60°F (15°C), which cause frond drop and decline.

humidity_percentage

Humidity

Requires high humidity (50–80%+). Mist fronds daily, use a pebble tray, or place in a bathroom to maintain moisture. Low humidity causes brown tips and wilting.

Toxicity

check_circleSafe for Catscheck_circleSafe for Dogscheck_circleSafe for Children

Non-toxic; safe for cats, dogs, and children.

Common Diseases

filter_dramaRoot Rotchevron_right grainLeaf Spotchevron_right

Common Pests

pest_controlSpider Miteschevron_right coronavirusMealybugschevron_right hiveScale Insectschevron_right pest_controlFungus Gnatschevron_right

Seasonal Care

local_floristspring

Resume regular watering and feeding as growth picks up.

light_modesummer

Peak growing season. Water and feed regularly.

ecoautumn

Reduce watering as growth slows. Stop heavy feeding.

ac_unitwinter

Minimal watering and feeding. Protect from frost if needed.

Frequently Asked Questions

Why does my Boston Fern shed so many small leaflets?

Some pinnae drop is normal, especially after a move or humidity swing, but heavy shedding usually points to low humidity or letting the soil dry out. Boston Ferns want consistently moist soil and 50%+ humidity to hold onto their fronds.

Can I cut back a leggy or brown Boston Fern?

Yes — trim brown or scraggly fronds at the base any time. The plant regrows quickly from the crown once humidity and watering are corrected, often filling back in within a few weeks.