Boston Fern Care Guide
Nephrolepis exaltata
Quick Answer
Boston Fern needs watering every 1–3 days (keep moist) in summer and every 2–3 days in winter. It thrives in low to medium indirect and temperatures of 60–75°F. Difficulty: Moderate. ✅ Non-toxic to pets.
⭐Difficulty
Moderate
☀️Light
Low to medium indirect
💧Watering
Every 1–3 days (keep moist)
🌫️Humidity
High (60–80%)
🌡️Temperature
60–75°F
📈Growth Rate
Moderate
Toxicity
Source: ASPCA Animal Poison Control
Watering
Summer
Every 1–3 days (keep moist)
Winter
Every 2–3 days
Method: Keep consistently moist; never let dry
Light Requirements
Low to medium indirect
Prefers bright indirect; tolerates low light.
Soil & Potting
Soil: Rich, peat-based potting mix
Pot: Hanging basket or pot with drainage
Temperature & Humidity
Temperature: 60–75°F (16–24°C)
Humidity: High (60–80%)
Fertilizing
Frequency: Monthly spring/summer; skip winter
Type: Balanced liquid fertilizer, quarter strength
Common Problems
Fronds turning yellow → Underwatering or low humidity. Water more and mist.
Brown, dry fronds → Low humidity. Use humidifier or pebble tray.
Leaf drop → Too dry or too hot. Cool, humid spot needed.
Slow growth → Needs more humidity and fertilizer.
Propagation
Division at repotting, spores (difficult)
Seasonal Care Calendar
🌸 Spring
Move outdoors to a shaded spot or humid bathroom. Resume misting and fertilizing.
☀️ Summer
Thrives outdoors in shade or high-humidity rooms. Water daily in hot weather.
🍂 Fall
Bring back indoors before first frost. Reduce watering as growth slows.
❄️ Winter
Run a humidifier nearby — indoor heating is harsh. Water consistently but reduce frequency slightly.