Boston ferns are popular houseplants due to their lush foliage and air-purifying abilities. These ferns are native to tropical regions and require specific care to thrive indoors. In this blog, New York Garden will discuss how to grow and care for Boston ferns to keep them healthy and vibrant.

Boston Fern Overview

Boston fern (Nephrolepis exaltata) is a popular houseplant that offers elegance and grace to any interior area. Boston ferns are distinguished by their luxuriant, fluffy fronds, which may grow up to three feet long and two feet broad. This plant is native to the Americas, Africa, and Polynesia, where they grow in wet, gloomy environments. According to the information from NC State University [1], you can see an overview of Boston Fern here:
Botanical Name Nephrolepis exaltata
Common Names
  • Bostonfern
  • Boston Fern
  • Dwarf Feather Palm
  • Fluffy Ruffles
Plant Type
  • Epiphyte
  • Fern
  • Houseplant
Soil Type Moist, well-drained
Sun Exposure Partial sun
Bloom Time Non-flowering
Flower Color Non-flowering
Available Space To Plant:
  • 12 inches - 3 feet
  • 3 feet - 6 feet

How to Care For Boston Fern?

Temperature

Maintain a temperature between 65-75°F (18-24°C). Protect the fern from drafts and cold temperatures below 50°F (10°C). They may survive milder temperatures, but they do not grow in hot, dry conditions. If you live in a hot area, you may need to relocate your fern during the summer.

Light

Boston ferns require indirect light. Direct sunshine can burn their leaves, while insufficient light causes them to become lanky and sickly. A Boston fern thrives in areas that receive morning sun or filtered light from a window.

Humidity

Boston Ferns thrive in high humidity. Aim to maintain a humidity level of 50% or higher.

Fertilizer

Boston ferns do not require much fertilization. During the spring and summer, little feeding once a month is all that is required. Make use of a balanced fertilizer that has been diluted to half strength.

Water

Boston ferns require wet but not soggy conditions. The soil should be kept moist but not wet. Stick your finger a few inches inside the container to check the moisture level of the soil. It is time to water if the soil seems dry.

How to Grow Boston Fern?

There are 3 main steps to planting a boston fern in the following:
 
Step 1: Choose the Right Pot and Soil
  • Select a pot with drainage holes to prevent root rot.
  • Use a well-draining, peat-based potting mix with added perlite or vermiculite for aeration.
Step 2: Watering and Fertilizing
  • Water thoroughly when the top inch of soil feels dry to the touch. Avoid over-watering, as this can lead to root rot.
  • Fertilize monthly during the growing season (spring and summer) with a balanced, water-soluble fertilizer. Reduce feeding to every other month during fall and winter.
Step 3: Pruning and Maintenance
  • Regularly remove dead or yellowing fronds to encourage new growth.
  • Mist the fern daily or place it on a pebble tray filled with water to increase humidity.
  • Rotate the pot periodically to ensure even growth.

Propagation Techniques

There are 2 ways to propagate Boston fern:
  • Division: Divide the plant during repotting by carefully separating the root ball into smaller sections, each with healthy fronds and roots. This is the best way to propagate Boston fern in spring.
  • Spores: Collect spores from the fronds' underside and sow them on a moist, sterile growing medium. Keep in a warm, humid environment until germination.

Common Pests and Diseases

Mealybugs, spider mites, and whiteflies can attack Boston ferns planted outside. The Boston fern's luscious green leaves are also a favorite feast of snails, slugs, and caterpillars. Moreover, some common pests and diseases that Boston fern may fall victim are:
  • Yellowing fronds: This may be caused by overwatering, under-watering, or exposure to direct sunlight. Adjust watering and lighting conditions as needed.
  • Brown fronds: If your Boston ferns have brown fronds, this may be a sign of underwatering. Ensure that your ferns are receiving enough water and increase humidity levels.
  • Pests: Spider mites, mealybugs, and scale insects can infest Boston Ferns. Treat infestations with insecticidal soap or neem oil.
  • Root rot: Overwatering can lead to root rot, which can be fatal for your ferns. If you suspect root rot, remove the affected plant and repot in fresh, well-draining soil.

FAQs

1. How often should I repot my Boston Fern?

Repot your Boston Fern every 1-2 years or when it becomes root-bound. Choose a pot that is 1-2 inches larger in diameter than the current pot.

2. How do I increase humidity for my Boston ferns?

You can increase humidity by placing a humidifier near your ferns or a tray of water near your ferns.

3. Can Boston Ferns be grown outdoors?

Boston Ferns can be grown outdoors in USDA Hardiness Zones 9-11. They should be placed in a shaded area with protection from direct sunlight and frost.

4. Are Boston Ferns toxic to pets?

Boston Ferns can be grown outdoors in USDA Hardiness Zones 9-11. They should be placed in a shaded area with protection from direct sunlight and frost.

Final thought

Growing and caring for a Boston Fern can be a rewarding experience, as these beautiful plants add a touch of elegance to any indoor or outdoor space. With our tips and tricks, you can keep your Boston ferns healthy and vibrant, adding a touch of elegance to any space.
 
The New York Garden works under restricted procurement guidelines and relies on peer-reviewed studies and studies conducted by academic organizations. Tertiary references should be avoided. For more information on how we ensure our material is correct and up to date, please visit our editorial policy. 1. Nephrolepis exaltata - NC State University