Fern leaves

Fern Leaves Turning Black – Why And What To Do?

Fern leaves turning black is usually a sign of inadequate exposure to light. If your fern is not getting enough light, the leaves will begin to turn black and might eventually die. It could also be a sign of dehydration, so make sure to keep an eye on your fern’s water needs.

If you think this may be the problem, move your plant to a brighter location. If the leaves are only turning black around the edges, this is usually a sign of too much direct sunlight. Move your plant to a shadier spot and see if that helps.

Water your fern regularly, making sure to never let the soil dry out completely. If the leaves are wilting or looking dry, mist them with water a few times a day.

Fertilize your fern every month or so to give it the nutrients it needs to stay healthy. Use a water-soluble fertilizer and follow the instructions on the package.

If you see any black leaves, remove them from the plant. This will help prevent the spread of whatever is causing the issue.

If the leaves are turning black and you’re not sure why, it’s always best to consult with a gardening expert to get to the bottom of the issue.

What to do if your fern leaves are turning black

If you’re seeing black spots on your fern leaves, don’t worry – you’re not alone. Many gardeners have this problem from time to time, and there are several possible causes.

In this section, we’ll discuss the most common reasons for black spots on fern leaves, and we’ll give you some tips on how to fix the problem. Keep reading to learn more.

Overwatering or underwatering

One of the most common causes of black spots on fern leaves is overwatering or underwatering.

If the soil is too wet, the roots will rot and the leaves will turn black. On the other hand, if the soil is too dry, the leaves will wilt and turn brown or black.

To prevent this from happening, be sure to water your fern properly based on its specific needs.

For example, check the moisture level of the soil before watering and make sure that it’s never soggy or dry.

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Poor drainage

If your fern isn’t getting enough water, it may start to develop black spots on its leaves as a result of poor drainage.

When water accumulates in the potting mix and stays there for an extended period of time, it can cause the roots to rot, which will eventually lead to black spots on the leaves.

To prevent this from happening, be sure to choose a potting mix that has good drainage and make sure that the pot has drainage holes.


If your fern is getting too much direct sunlight, it can start to develop black spots on its leaves as a result of sunburn.

When the leaves are exposed to too much sunlight, they can become damaged and turn black. To prevent this from happening, make sure that your fern is getting the right amount of light based on its specific needs.

For example, if you’re growing an indoor fern, it’s best to keep it in a spot where it will get indirect sunlight.

Pest infestation

If your fern is infested with pests, such as aphids or scale insects, it can start to develop black spots on its leaves.

These pests suck the sap out of the leaves, which can cause them to turn black. To get rid of pests, you can use a pesticide or an insecticide.

However, be sure to read the label carefully before using any products and follow the instructions carefully to avoid harming your fern.


If your fern is infected with a disease, such as leaf spot or rust, it can start to develop black spots on its leaves.

To prevent diseases from spreading, it’s important to remove any affected leaves immediately and dispose of them properly.

In addition, you should avoid watering the leaves of your fern and make sure that the pot has good drainage to prevent the disease from spreading.

How to prevent fern leaves from turning black

Preventing fern leaves from turning black is a simple process that can be achieved by following a few easy steps. By ensuring the plant receives enough light and water, and by keeping it free of pests, you can help to keep your fern looking healthy and green.

If the leaves do start to turn black, you can try removing the affected leaves and providing the plant with some extra care. With a little bit of effort, you should be able to keep your fern looking its best.

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Ferns are a popular type of houseplant, but they can be tricky to care for. One common problem is that the leaves may start to turn black. This can be caused by a number of factors, including too little light, too much water, or pests.

If you think your fern might be turning black due to one of these issues, there are some steps you can take to try and prevent it.

First, make sure the plant is getting enough light. If it’s not, move it to a brighter spot.

Second, check that you’re not overwatering it. Ferns like their soil to be moist, but not soggy.

Third, look for signs of pests and remove them if you find any.

If the leaves on your fern have already started to turn black, you can try removing them.

Cut off any affected leaves at the base, being careful not to damage the plant. You may also want to give the fern some extra care, such as fertilizing it or repotting it in fresh soil. With a little bit of effort, you should be able to keep your fern looking its best.

Different ways to care for your fern plants

There are many ways to care for your fern plants. We will discuss four of the most popular methods. Keep in mind that every fern is different, so you may need to experiment a bit to see what works best for your individual plant.

The Soil Method

Ferns like soil that is rich in organic matter and has good drainage. You can either mix organic matter such as peat moss or compost into the soil before planting, or add it to the top of the soil after planting.

Be sure to water regularly, but do not overwater; ferns do not like soggy soil.

The Potting Mix Method

If your fern is growing in a pot, you will need to use a potting mix that drains well.

A potting mix made for cacti and succulents is ideal, as it contains sand and other ingredients that help keep the soil dry.

Again, be sure to water regularly but not overwater.

The Hanging Basket Method

Hanging baskets provide great drainage and allow air circulation around the roots, which helps prevent diseases such as root rot.

Use a lightweight potting mix, and water regularly. Be sure to fertilize monthly during the growing season.

The Terrarium Method

Terrariums create a humid environment that is perfect for ferns. Use a potting mix made for terrariums, and add a layer of gravel or activated charcoal to the bottom of the pot for drainage.

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Water regularly, and mist the plants with water occasionally to increase humidity.

These are just a few of the many ways you can care for your fern plants. Experiment and find what works best for you and your plant.

Troubleshooting tips if your ferns still turn black

If you’re having trouble with your ferns, don’t worry – we’ve got you covered. Read on for some tips to help get your plants back on track.

  • Make sure your ferns have enough light. Ferns need plenty of indirect sunlight in order to stay healthy, so if they’re not getting enough light, they may start to turn black. Try moving them closer to a window or adding a grow light to their environment.
  • Make sure your ferns have the right humidity level. Most ferns thrive in humidity levels of around 50-70%, so if yours are too dry or too wet, they may start turning black. Try using a humidifier or misting your plants regularly to keep them happy and healthy.
  • Check the temperature of your home. Many ferns prefer cool temperatures (between 60 and 75 degrees Fahrenheit), so if the temperature in your home is too high, they may start turning black as a result. Try cooling things down a bit and see if that helps improve their health.
  • Water your plants regularly but don’t overwater them. Ferns need water but too much can be just as bad as not enough! If you’re watering your plants daily and they’re still turning black, try reducing the frequency to every other day or every few days.
  • Inspect your plants for pests. Aphids, spider mites, and other pests can wreak havoc on your plants and cause them to turn black. If you suspect your ferns have pests, take a close look at them and treat them accordingly with an insecticide or other pest control measure.
  • Fertilize your ferns regularly. Ferns need nutrients to stay healthy, so if you’re not fertilizing them on a regular basis, they may start to turn black. Try using a balanced fertilizer every few weeks and see if that makes a difference in their health.
  • Repot your ferns if they’re pot-bound. If your ferns are root-bound (meaning their roots are filling up the entirety of their pots), they may start to turn black. Repot them into larger pots with fresh, well-draining potting mix and see if that helps improve their health.
  • Give your plants a trim. If your ferns are getting too big or leggy, they may start to turn black. Try trimming them back and removing any dead or dying leaves to help encourage new growth.

Hopefully, these tips will help you get your ferns back on track! If you have any other questions or concerns, feel free to reach out to us – we’re always happy to help.