Back to Plants

Boston Fern Care Guide

Nephrolepis exaltata

Nephrolepidaceae / Nephrolepis

Also known as: Sword Fern, Fishbone Fern

Light

Medium Light

Humidity

High (60%+)

Temperature

15C - 27C

Pet Safety

Listed Non-Toxic

Boston Fern is a lush, graceful fern with arching fronds of small leaflets. It is a classic hanging basket plant that thrives in humid environments. While non-toxic to pets, it demands consistent moisture and humidity.

Boston Fern care at a glance

Give Boston Fern medium light and keep soil consistently moist but not soggy. Mist regularly. Use peat-based potting mix with good moisture retention. Keep temperatures between 15C and 27C.

Pet owner? Read the detailed Boston Fern safety guide for cats and dogs.

Light Requirements

Medium Light. Place near a window that provides appropriate light levels for best growth.

Watering

Keep soil consistently moist but not soggy. Mist regularly.

Humidity

Prefers high humidity (High (60%+)). Adjust based on your room conditions and season.

Temperature

Optimal range: 15C to 27C. Avoid cold drafts and sudden temperature changes.

Soil

Peat-based potting mix with good moisture retention.

Fertilizer

Monthly during spring and summer with diluted liquid fertilizer.

Common Problems

Dropping leavesBrown frondsYellowingSparse growth

Frequently asked questions

How often should I water Boston Fern?

Keep soil consistently moist but not soggy. Mist regularly.

What light does Boston Fern need?

Boston Fern prefers medium light.

Is Boston Fern safe for pets?

Boston Fern is generally considered non-toxic to cats and dogs.

Save to your collection

Get personalized watering reminders and care tips in the GrowBook app.

Get the App

Sources and review

Content last reviewed: September 4, 2026

Content compiled from publicly available horticultural references for educational purposes. Source organizations are listed for transparency only and do not imply endorsement.

We use optional cookies for advertising and analytics. Choose whether to allow them.