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Why Is My Asparagus Fern Turning Brown? [3 Main Reasons]

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Asparagus Ferns are exciting and beautiful houseplants, and its lovely green and dainty Asparagus Fern is a beautiful addition to any home. However, as with any other indoor plant, this Asparagus Fern plant has a few common problems if there is a lack of requirements.

So, let’s start with the question- Why Is My Asparagus Fern Turning Brown? 

For starters, Overwatering causes your plant’s roots to rot and interrupts to prevents the roots from receiving the necessary nutrients. Secondly, if you leave your Asparagus in direct sunlight for an extended period, it will cause sunburn and turn them yellow or brown. Another reason for your fern turning brown and drying out is if it gets too hot. 

Now, my friend, we are just getting warmed up. 

To help the plant, you need to get to the root of the problem. That’s why we’ve explained every reason with its possible solution. 

Therefore, if you want to save your Asparagus Fern, read along! 

3 Reasons Why Is My Asparagus Fern Turning Brown? [Along with Solutions]Asparagus Fern Turning Brown

It’s definitely disheartening to see your beloved Asparagus in distress. Mainly because the source of the problem is most likely you.

Your asparagus will turn brown-

Whether you don’t adequately care for the vine. Your poor decisions are the reason your plant is sick right now! But, yeah, you could repair this!

To assist you, we have outlined your errors and their remedies-

1. Nutrient Deficiency

Nutrient Deficiency 

Now, lack of nutrients is the first reason why Asparagus Fern Turning Brown

Therefore, if there’s a deficiency in one of the nutrients, the plant won’t get the preferred pH level of  6-7. And this will lead to Asparagus Fern Turning Brown

Now, even though we’ve mentioned three nutrients-

This problem mostly appears due to phosphorus deficiency. Because this nutrient is needed for producing energy, nucleic acids, and sugars.

So, if a plant lacks this nutrient, it’ll stop growing, and it will start turning brown. Moreover, they’ll simply die if you don’t act quickly. 

How can you be sure that the problem is phosphorus deficiency? 

Well, you can run a soil test or analysis. This can be done by you or a soil lab. If you want to do the test, use a soil test kit. 

Just read the instructions of the kit and test your soil. This tool will let you know how much of the nutrient is missing in no time. 


To be honest, it’s not that hard to turn the situation back to normal. Therefore, just follow our lead-

Firstly, remove the affected ferns. This way, you can prevent damaging the plant’s tissues.

Once you’ve discarded the brown parts-

Grab yourself a fertilizer that’s rich in phosphorus. Well, there are two fertilizers to use. You can either pick bone meal or phosphate. 

We’ve mentioned how both fertilizers are supposed to be used-

Fertiliser  How To Use
Commercial fertilizer A well-functioning mixture is 7-3-6. This helps you to appreciate the increased nitrogen (7) and potassium concentrations in this fertilizer (6). Phosphorus remains in the third concentration position (3). A healthy blend of 15-15-15 is preferred by many gardeners.
Homemade fertilizer Casual compost is, without doubt, one of the most popular organic fertilizers used in the home. This fertilizer can be made from California worms conveniently in the same way. You can still use water when you scrub it if you have an aquarium tank at home.

Now, this is how you can bring back the right amount of phosphorus. And help your plant get better!

2. Over or Underwatering Over or Underwatering 

Plants will live for a long time if they are given enough water. Otherwise, they’ll show you signs that they’re in pain.

So how much water does Asparagus require? Asparagus, on the other hand, takes a lot of irrigation. They must be watered at least 2-3 times a week.

If you live in a dry climate, you will need to water the plant more often. Or where the average winter temperature is 25-36 degrees Fahrenheit. Summer temperatures range from 65 to 74 degrees Fahrenheit. More specifically, we say watering the plant every morning.

You won’t be overwatering the plant this way. Even if you didn’t remember, overwatering would cause the plant’s roots to rot. Plants turn brown as a result of this situation.

It is also essential to inspect the soil before watering again. And if the irrigation system is flawed, watering daily increases the likelihood of brown plants.


Don’t panic if you made a mistake when watering the garden! Instead, consider how to care for the plant right now!

To begin, examine the soil to determine whether you have under or overwatered the plant. If the soil is hot, you’ve overwatered the vine. And it wasn’t able to digest anything.

So, pick up the plant and place it in a different container or jar. At least 3-4 drainage holes should be present in the pot. Be vigilant After the replanting. And there is water that has to be cleaned.

Once you’re sure, enough water has been drained, test the soil. Use a moisture meter to know whether the soil is moist or not. If it is, you can start watering again. This plant enjoys receiving moisture from humid air.

If you hit the soil now, it is scorched. That means you didn’t supply enough water.

As a result, begin supplying water to your Asparagus Fern as soon as possible. Water until you see water flowing out of the drainage holes in the jar. Then, allow the mint plant to absorb the water through its roots.

That’s what there is to it! Hopefully, things will improve quickly!

3. Insufficient Lighting & Wrong TemperatureInsufficient Lighting & Wrong Temperature

Inadequate lighting and temperature will destroy your plant over time. Asparagus Fern Turning Brown is caused by unhealthy living conditions.

Asparagus now thrives in sunny locations. This plant needs 6-7 hours of direct sunlight a day. They should be exposed to an LED light for at least 8 hours. That this plant cannot produce food in the absence of sun. As a result, the plants gradually turn brown.

It is now, therefore, essential to verify the temperature. During the day, the plant should be kept at a temperature of 65-70 degrees Fahrenheit. At night, the temperature drops to 55-60 degrees Fahrenheit.

As a result, it is preferable if the illumination is given by the temperature range. Excessive or deficient illumination and temperature are also disliked.

And too much heat will allow the leaves to burn. A lack of light and temperature can cause the plant to starve. As a result, the Asparagus Fern will become brown.

The common diseases of Asparagus Fern

Turning leaves brown is not only one issue, but you can face several problems if you don’t care about your Asparagus Fern perfectly. See the included problem andThe common diseases of Asparagus Fern solve them as the way we say.

1. Dried out

Overfertilization can result in the salt build-up in the soil, which is harmful to your Asparagus because salt absorbs a lot of moisture instead of the plant. As a result of the lack of moisture, your Asparagus plant will become dried out and appear wilted and brown with dry leaves.

Fixing Process

Fertilizing indoor ferns is best done once a month during the growing season. So, while the plant is actively growing, feed it with liquid or water-soluble fertilizer every 3-4 weeks.

2. Nutrition Deficiency

Asparagus  Ferns thrive well in rich nutrition soil, but plants won’t grow well and contain various symptoms to indicate a deficiency if there aren’t enough essential nutrients. Ferns require potassium, nitrogen, and phosphorous in their soil, and if they do not receive any of these nutrients, you will notice that your plant looks unhealthy, with yellow or brown leaves.

Fixing Process

Feeding your Asparagus Fern liquid fertilizer or water-soluble fertilizer can help you eliminate this problem. On the other hand, incorrect PH levels stand in the way of your plant from absorbing nutrients like potassium, nitrogen, and phosphorous. The ideal pH range for growing asparagus is between 6.5 and 7.0; try to keep your plant soil within this range.

3. Fungus

This disease reduces photosynthesis by affected ferns because it infects the fern and damages its roots, stopping them from carrying nutrients to the stem and leaves. You will notice that the leaves of your Asparagus Fern are wilting and turning brown, which can be caused by fungus.

Fixing Process

Using a fungicide, prune the plant’s infected parts stand in your plant’s way and try to re-pot your Asparagus Fern in new soil.


Question: How do you bring an asparagus fern back to life?

Answer: Daily mist the plant, paying particular attention to the arching stems. If the plant appears to be browning and drooping, it most likely requires more water.

Question: Are coffee grounds good for asparagus?

Answer: Asparagus grows best in soil with a pH of 6.5 to 7, which is mildly acidic. Coffee grounds can have a pH of 5 or less on their own, and they also add nitrogen, which is an essential nutrient for asparagus.

Question: What is the healthiest way to eat asparagus?

Answer: Shredded, raw asparagus can be added to pasta dishes and salads. Alternatively, serve the spears lightly steamed or sautéed in a frittata or as a side dish independently.

Take Away

Now, those are the reasons Why Is Your Asparagus Fern Turning Brown. If you follow these processes, you will indeed have your Asparagus Fern better in no time.

So, where did you mess up? 

Share your answers and thoughts with us by leaving a comment. Good luck saving your precious Asparagus Fern!

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