Boston ferns (Nephrolepis exaltata) are beloved for their lush, feathery fronds and classic elegance. Whether hanging in a basket, resting on a plant stand, or perched on a shelf, they instantly add a soft, tropical feel to any space. But unlike some of their low-maintenance cousins, Boston ferns require a bit of attention — especially when grown indoors.
In this guide, you’ll learn everything you need to know to keep your Boston fern thriving inside your home, from light and watering needs to humidity, soil, and styling tips.
Why Choose a Boston Fern?
Boston ferns are one of the most popular house ferns for good reason:
- They’re visually stunning with rich, arching fronds
- They help purify indoor air
- They bring a sense of calm and softness to any room
- They can live for years with proper care
- They’re pet-safe (non-toxic to cats and dogs)
Light Requirements
Indirect Light Is Key
Boston ferns love bright, indirect sunlight. Too much direct sun can scorch their delicate fronds, while too little light can lead to yellowing or leaf drop.
Best locations:
- Near an east-facing or north-facing window
- Several feet from a south-facing window with sheer curtains
- In a bright bathroom with natural light
Avoid:
Direct sunlight, deep shade, or drafty windows.
Watering: Keep It Consistently Moist
Watering a Boston fern can be a bit of a balancing act. The goal is to keep the soil evenly moist — not soggy, not bone dry.
Watering tips:
- Check the soil with your finger. If the top inch feels dry, it’s time to water.
- Water thoroughly, allowing excess water to drain.
- Never let the pot sit in standing water, or root rot may occur.
- In warm seasons, your fern may need water 2–3 times per week.
- In winter, reduce watering but don’t let it dry out completely.
Pro Tip: If the fronds begin turning crispy or dropping suddenly, it may be underwatered or suffering from low humidity.
Humidity: A Must for Fern Happiness
Boston ferns are native to tropical and subtropical climates — they love high humidity and often struggle in dry indoor air, especially in winter.
Ways to increase humidity:
- Mist the fronds daily (especially in dry climates or during winter)
- Use a humidifier nearby
- Place the pot on a tray filled with pebbles and water (just don’t let the pot sit directly in the water)
- Group with other plants to create a naturally humid microclimate
Best humidity level: 50% or higher
Temperature Preferences
Boston ferns like it comfortable — not too hot, not too cold.
- Ideal range: 60°F to 75°F (15°C to 24°C)
- Avoid cold drafts, AC vents, and heaters
- Never let temperatures drop below 50°F (10°C)
If it gets too cold or too dry, you’ll notice leaf drop and frond browning.
The Right Soil and Potting Setup
Use light, well-draining soil:
- A peat-based mix with perlite or vermiculite is ideal
- You can also use a general houseplant mix with extra organic material added
Choose the right pot:
- Use a pot with drainage holes
- Consider a hanging basket or ceramic planter with airflow
Repot every 1–2 years in spring if the roots become crowded or the plant seems sluggish.
Fertilizing Boston Ferns
Boston ferns don’t need much fertilizer, but feeding during the growing season helps keep them lush and green.
Fertilizer tips:
- Use a balanced, water-soluble fertilizer (like 10-10-10 or 20-20-20)
- Dilute it to half strength
- Feed once a month during spring and summer
- Do not fertilize in winter while the plant is resting
Too much fertilizer can burn the roots or cause weak, leggy growth.
Pruning and Maintenance
Pruning helps keep your Boston fern tidy and encourages fresh growth.
- Trim off brown, crispy, or yellow fronds with clean scissors
- Remove dead leaves at the base to improve airflow
- Shake out the plant gently to remove dried-out pieces
Regular grooming keeps the plant looking fresh and prevents fungal issues.
Styling Your Fern Indoors
Boston ferns work in a variety of settings thanks to their graceful shape.
Display ideas:
- In a hanging basket near a bright window
- On a plant stand in the corner of a living room
- On a high shelf with fronds cascading down
- In a bright bathroom for natural humidity and charm
- Paired with wood and neutral decor for a soft, classic look
Pro Tip: They look amazing in vintage-inspired ceramic or rattan baskets!
Common Problems and Solutions
| Problem | Cause | Solution |
| Yellow leaves | Overwatering or poor light | Adjust water and move to brighter indirect light |
| Crispy fronds | Dry air or underwatering | Increase humidity and check watering routine |
| Sudden leaf drop | Drafts or temperature drop | Keep away from AC, windows, and cold zones |
| Pests like spider mites | Dry air and neglect | Mist more, isolate, and treat with neem oil |
Ferns Done Right
Boston ferns may need a little extra TLC, but the reward is well worth it. With their elegant, arching fronds and air-purifying qualities, they bring a timeless charm to any indoor space. By focusing on light, moisture, and humidity, you can enjoy a healthy, full fern year-round.
Whether hanging in a sunny nook or perched beside your sofa, a Boston fern makes your home feel lush, peaceful, and alive.