How To Tell if a Fern Is Healthy or Not

By | Updated April 28, 2023

• While ferns are generally low-maintenance plants, it is still essential to check on them regularly to ensure they are healthy.
• Signs of a healthy fern include vibrant green leaves, firm and supple stems, full and lush fronds, a healthy root system, and new growth.
• Some signs of an unhealthy fern include: yellowing or browning leaves, wilting or drooping leaves, dry or brittle leaves, curling or crumpling leaves stunted growth.
• There are some key things you can do to keep your fern healthy, including watering regularly, providing adequate humidity, placing it in a good location, and pruning as needed.

Fern plants are common houseplants known for their lush, green leaves.

While indoor ferns are generally low-maintenance plants, it is still essential to check on them regularly to ensure they are healthy.

This article will teach you how to tell if a fern is healthy or if it is time to give it some extra attention.

Signs of a Healthy Fern

There are some key things to look for when checking on your fern to see if it is healthy.

The signs of a healthy fern include:

Vibrant and Green Leaves

The health of any plant is often reflected in its foliage, and ferns are no exception.

One key sign that your fern is healthy is the presence of vibrant green leaves. This is because green leaves indicate the presence of chlorophyll, which allows plants to absorb sunlight and process it into energy.

Without an adequate supply of chlorophyll, your fern will quickly wither and die, so you should ensure that it has all the nutrients it needs to produce this vital molecule.

One way you can do this is by ensuring that you provide plenty of water and humidity for your fern, especially during high heat or drought periods.

Additionally, you should ensure you are providing nutritious soil for your plant to grow in, one with good levels of nitrogen and phosphorus.

With these simple steps, you can help your fern thrive and maintain strong green leaves as a sign of its health and vitality.

Firm and Supple Stems

When looking at different fern plants, one of the critical things you can look for to determine whether a plant is healthy is the firmness and suppleness of the stems.

Firm and supple stems generally indicate that the plant grows in good conditions with plenty of nutrients, moisture, and sunlight.

When you see that a fern plant’s stems are flexible and robust, you know that you have found a healthy specimen. These characteristics show that the plant’s roots work well to take up water and nutrients from the soil while still sending enough energy throughout its leaves and fronds to keep them flourishing.

In contrast, if you see fern plants with weak or brittle stems, this may indicate problems with your growing conditions or with pests.

For example, if your fern’s stems are particularly weak or brittle during periods of drought, it likely means that the roots are not getting enough water.

In this case, you should increase the moisture in the soil around your plant. Alternatively, if you see your fern leaves wilting or fronds drooping, this may be a sign that the roots are not getting enough nutrients.

To correct this issue, add some compost or fertilizer to the soil around your plant to boost it.

By checking the stems of your ferns, you can get a good sense of the plant’s overall health and well-being.

Full and Lush Fronds

In addition to looking at the leaves and stems of your indoor fern, you should assess the fronds.

The fronds are the leaf-like structures that make up the plant’s canopy and play an essential role in providing shade and shelter for the plant.

As such, you should look for full and lush fronds, as this is a sign that the plant is getting enough sunlight and water to support its growth.

On the other hand, if you see wilted or dried fronds, this may be a sign that your fern is not getting enough water or nutrients.

In this case, you should improve the growing conditions around your plant.

By taking the time to assess the fronds of your ferns, you can get a good sense of the plant’s overall health and vitality.

Healthy Root System

While it may be tempting to focus solely on the leaves and fronds of your fern, it is essential to remember that the roots play an equally important role in the plant’s overall health.

The roots are responsible for taking up water and nutrients from the potting soil and anchoring the plant.

As such, you should look for a healthy root system when assessing your fern’s health.

Healthy roots are white or light-colored and should be firm and supple, not brittle or dried out.

The roots should be evenly distributed throughout the pot and not crowded or entangled.

If you see that your fern’s roots are unhealthy, it is crucial to take steps to improve the growing conditions around your plant.

For example, if the roots are dried out, you should increase the moisture in the soil. Alternatively, if the roots are crowded or entangled, you may need to repot your plant into a larger pot.

New Growth

Finally, another critical indicator of fern health is new growth.

If your plant is putting out new leaves or fronds, it is a good sign that it is getting the nutrients and moisture it needs to support its growth.

On the other hand, if you do not see any new growth on your fern, it may be a sign that the plant is not getting enough nutrients or moisture.

In this case, you should improve the growing conditions around your plant.

Signs of an Unhealthy Fern

While several signs can indicate that a fern is healthy, several symptoms can indicate that a fern is unhealthy.

Some of the most common signs of an unhealthy fern include:

Yellowing or Browning Leaves

One of the most common signs that a fern is unhealthy is yellowing or browning leaves. This can be caused by several factors, including overwatering, lack of humidity, or even too much direct sunlight.

If you notice that your fern leaves are beginning to turn yellow or brown, take a close look at your watering habits and ensure you’re not overwatering the plant. Increase the humidity around your fern by misting it regularly or placing it on a pebble tray.

If too much direct sun is the problem, try moving your fern to a spot that gets filtered light instead.

Wilting or Drooping Leaves

Another common sign of an unhealthy fern is wilting or drooping leaves. This can be caused by several factors, including underwatering, lack of humidity, or even hot or cold drafts.

Check if the soil is dry if you notice your fern’s leaves drooping. If it is, water your fern and see if the leaves perk back up.

If they don’t, try increasing the humidity around your plant by misting it with water or setting it on a tray of pebbles filled with water.

You can also move your fern to a different location, away from any windows, vents, or other sources of drafts.

Dry or Brittle Leaves

Dry or brittle leaves are one of the most common signs that a fern is unhealthy.

If the leaves of your fern are dry or brittle, likely, the plant is not getting enough water.

Make sure to water your fern regularly and keep the soil moist but not soggy.

Additionally, increase the humidity around your fern by misting it regularly or placing it on a pebble tray.

Curling or Crumpling Leaves

If you notice that the leaves of your fern are curling or crumpling, likely, the plant is not getting enough humidity.

Try misting your fern regularly or placing it on a pebble tray to increase the humidity around the plant.

Also, ensure you’re not overwatering your fern, which can cause the leaves to curl or crumple.

Stunted Growth

When a fern is not healthy, it will have stunted growth. The leaves will be smaller than usual, and the plant will look unhealthy. This could be due to a lack of nutrients, improper watering, or pests.

If your fern’s growth is stunted, check the roots to see if they’re healthy. When the roots are white and mushy, this is a sign of root rot, and the fern will need to be repotted.

If the roots are brown and dry, this is a sign of drought stress, and the fern will need to be watered more frequently.

Also, check your fern leaves for any signs of pests or diseases. If you see any, take steps to treat the problem immediately.

How To Keep Your Fern Healthy

Ferns are beautiful houseplants that can add a touch of nature to any indoor space. But like all plants, they need the proper care to stay healthy and thrive.

Here are some tips on how to keep your fern healthy:

  • Water regularly. Ferns like to be kept moist, so water them when the top inch of soil feels dry. Be careful not to overwater, as this can lead to problems like root rot.
  • Provide adequate humidity. Ferns prefer high humidity, so mist them regularly or set them on a pebble tray filled with water.
  • Place in a good location. Ferns do best in bright indirect light, so avoid placing them in direct sunlight.
  • Feed regularly. You must feed ferns monthly during the growing season with a half-strength fertilizer solution.
  • Prune as needed. Remove any dead or dying leaves as they occur. If your fern looks leggy, you can trim it to encourage new growth.
  • Watch for pests. Ferns are susceptible to pests like aphids, mealybugs, and spider mites. If you see any of these on your plant, treat them immediately with an appropriate pesticide.
  • Repot as needed. Potted ferns can become potbound, so be sure to repot them every year or two.

Following these simple tips, you can keep your fern healthy and looking its best.

Final Thoughts

Ferns, like the Boston Fern, the Maidenhair fern, or the Sword fern, are generally easy to care for, but like any plant, they can experience problems from time to time. They can be affected by pests, diseases, and other environmental factors.

Knowing if a fern is healthy can quickly address any issues and keep your plant looking its best when growing ferns.