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How Tall Does a Fern Plant Grow

Updated: December 22, 2022

Ferns are a diverse group of plants that do not produce flowers, but instead reproduce through spores. They are known for their lush green foliage and delicate fronds, making them a popular choice for indoor and outdoor gardeners alike.

One of the most common questions that fern enthusiasts have is about the height that a fern plant can reach. In this article, we will explore the different factors that determine the height of a fern plant and provide you with some helpful tips on how to care for your fern to ensure optimal growth.

Factors That Determine Fern Plant Height

There are several factors that affect the height of a fern plant, including:


The species of fern you choose to grow will greatly impact its height. Some ferns grow to be just a few inches tall, while others can reach over six feet in height. For example, the Boston fern (Nephrolepis exaltata) can grow up to three feet tall, while the giant chain fern (Woodwardia fimbriata) can reach heights of up to eight feet.

Growing Conditions

The environment in which your fern grows also plays a significant role in determining its height. Ferns prefer moist, shady environments with well-draining soil. If your fern is not getting enough water or sunlight, it may not reach its full potential height.


The climate in which you live will also impact the height of your fern plant. Different species of ferns thrive in different climates, so make sure to choose a species that is well-suited for your region. For example, tropical ferns will not grow well in cold climates, while some hardy ferns can survive even in harsh winter conditions.

Tips for Growing Tall Fern Plants

If you want your fern plant to reach its maximum height potential, here are some tips that can help:

  • Choose a species that is known for growing tall.
  • Make sure your fern is getting enough water and is planted in well-draining soil.
  • Provide your fern with the appropriate amount of sunlight for its species.
  • Keep your fern in a humid environment by misting it regularly or placing it near a humidifier.
  • Fertilize your fern plant regularly with a balanced, water-soluble fertilizer.

By following these tips, you can help your fern plant grow tall and healthy.

Frequently Asked Questions

How fast do ferns grow?

The growth rate of ferns varies depending on the species and growing conditions. Some ferns can grow up to six inches per year, while others may only grow a few inches over several years.

Can ferns be grown indoors?

Yes, many species of ferns can be grown indoors as long as they are provided with the appropriate growing conditions.

Do ferns need to be pruned?

Ferns do not require pruning, but you can remove any dead or yellowing fronds to maintain their appearance.

Can ferns be propagated?

Yes, ferns can be propagated through spores or by dividing the root ball of an established plant.

In conclusion, the height of a fern plant depends on various factors such as species, growing conditions, and climate. By choosing the right species and providing proper care, you can help your fern reach its maximum height potential. With these tips and tricks, you can successfully grow tall and healthy fern plants.