Live to Plant

How Quickly Does Fern Plant Grow?

Updated: April 5, 2022

Ferns are a popular plant species that have been around for millions of years. They have been used for various purposes, such as decoration, medicine, and food. One of the most commonly asked questions about fern plants is how quickly they grow. In this article, we will discuss the growth rate of fern plants and what factors affect their growth.

Factors That Affect the Growth Rate of Fern Plants

The growth rate of fern plants is influenced by several factors. These include:


Light is essential for the growth of any plant, including ferns. Ferns require indirect light to thrive. Direct sunlight can damage their leaves and cause them to wilt.


Water is essential for the growth of ferns. They prefer moist soil but not waterlogged soil. Overwatering can lead to root rot, which can be fatal to the plant.


Ferns grow well in well-drained soil that is rich in organic matter. The soil should be slightly acidic with a pH level between 5.5 and 7.


Ferns prefer a temperature range of 60°F to 75°F (15°C to 24°C). Extreme temperatures can cause stunted growth or even death of the plant.

How Quickly Do Fern Plants Grow?

Fern plants vary in growth rates depending on the species, growing conditions, and other factors. Some ferns can take months or even years to reach maturity, while others grow quickly within weeks.

For example, the Boston Fern (Nephrolepis exaltata) is one of the fastest-growing ferns. It can grow up to 3 feet in height within a year under optimal growing conditions. Other fast-growing ferns include the Bird’s Nest Fern (Asplenium nidus) and the Staghorn Fern (Platycerium sp.).

On the other hand, the Maidenhair Fern (Adiantum sp.) is a slow-growing fern that can take years to reach maturity. It is important to note that while some ferns may be slow growers, they are still beautiful and worth the wait.

Tips for Promoting Fern Growth

To ensure optimal growth of your fern plant, here are some tips to keep in mind:

  • Provide adequate light: As mentioned earlier, ferns require indirect light to grow. Ensure your plant is placed in a well-lit area but away from direct sunlight.

  • Water regularly: Ferns love moist soil, so ensure you water them regularly. However, avoid overwatering as it can lead to root rot.

  • Fertilize: Ferns benefit from regular fertilization. Use a balanced fertilizer once a month during the growing season.

  • Humidity: Ferns thrive in humid conditions. You can increase humidity by misting your plant with water or placing it on a tray filled with pebbles and water.

Frequently Asked Questions (FAQs)

How often should I water my fern plant?

Fern plants love moist soil, so water them regularly. However, avoid overwatering as it can lead to root rot. The frequency of watering will depend on the species, growing conditions, and other factors. A general rule of thumb is to water your fern once the top inch of soil feels dry to the touch.

Can I grow ferns indoors?

Yes, ferns can be grown indoors as long as they are provided with adequate light and humidity. They are great for adding greenery to indoor spaces.

How do I propagate fern plants?

Fern plants can be propagated through spores or division. To propagate through spores, collect mature spores and sow them on moist soil. To propagate through division, carefully remove the plant from its pot and separate the roots into sections. Replant each section in a new pot with fresh soil.

How do I control pests on my fern plant?

Fern plants are susceptible to pests such as spider mites and mealybugs. To control these pests, use insecticidal soap or neem oil. Regularly inspect your plant for signs of infestation and take action immediately.

In conclusion, fern plants are beautiful and fascinating plants that vary in growth rates depending on several factors. By providing adequate light, water, soil, and temperature, you can ensure optimal growth of your fern plant. Remember to also fertilize regularly and increase humidity to promote healthy growth.