Why Is My New Monstera Leaf Turning Black

How dry should I let the soil get before watering is the proper question to ask. And for the love of plants, please refrain from using a moisture meter!

Why? Because the majority of them are useless garbage, and because many customers have come to me after using a moisture meter to kill their plant,

Simply feel the earth with your finger. Depending on the size of the pot, let the top inch or two grow before adding water.

A drainage hole must be present in your pot. Not having a drainage hole is not an option.

And always, ALWAYS water your lawn thoroughly. Soak the ground completely, then let the water drain completely.

Overwatering doesn’t mean what most people assume it does, so you should get rid of that concern!

Overwatering causes an unreasonable anxiety in most people. Ironically, they really drown as a result of their dread. Learn the truth about overwatering. You might be shocked.

Why are my Monstera’s new leaves brown or black before it unfurls?

Before they have even begun to unfold, a plant’s new leaves will be brown or black, indicating a severe imbalance in soil moisture.

Either your soil has become excessively dry, or your plant has been left moist for an extended period of time. To learn how to water a houseplant correctly, be sure to read my blog post on under- and overwatering.

Can I put my Monstera outside in summer?

Most definitely! It will prosper outside! If you decide to move your indoor plants outside during the hot summer months, there is one thing you must do without fail.

Plants must be hardened off otherwise their leaves will burn. Many people are unaware of this and believe falsely that their plants dislike being outdoors.

Once you’ve prepared your plants for the outside, your Monstera or any other houseplant you decide to spend the summer outdoors will grow with startlingly stunning results. No plant was ever intended to be indoors, after all!

Why is my Monstera deliciosa wilting?

The most frequent causes of this are either extremely dry or extremely moist soil.

As soon as you notice your plant wilting, check the soil’s moisture level. Has the ground dried completely? If so, water it thoroughly and thoroughly straight away.

On the other side, if your Monstera plant has wilted and the soil feels extremely wet when you go to feel it, your plant may have experienced root rot.

Take the plant out of its pot and examine the roots if the soil is really damp and it appears like it is wilting. The roots have they rotted? Does the earth have a faint rotten odor?

It might be wise to remove the dead roots at this time, take out as much soil as you can, and repot the plant in new soil.

Why is my Monstera getting yellow leaves?

The soil being too dry is perhaps the most frequent cause of yellowing Monstera leaves.

Feel the soil if you see that the lower leaves are becoming yellow, especially the oldest ones. The oldest leaves will turn yellow first if the soil is extremely dry (totally dry).

From my experience, this is the most typical cause, however there are quite a few additional causes for the yellowing of your houseplant’s leaves.

What are the best Monstera support ideas?

Making your own is the best and most affordable option if you’re seeking for the best moss pole for Monstera. I’ve bought moss posts online, but they’re pricey and not very useful.

Don’t miss my DIY Moss Post tutorial so you can create your own superior post at a lower cost than anything you can buy.

If you only have one or two Monstera deliciosa vines in a single container, I think moss posts work best. Due to space restrictions, it is less useful if you have more vines.

I would suggest a bamboo tripod if you have numerous vines in one pot, like I do for my largest plant. Put three strong bamboo stakes within the pot and knot them together at the top. This offers a lovely, reliable assistance.

Why are my variegated Monstera leaves turning brown?

I’ll direct you to my blog entry about variegated Monstera deliciosa for this one. There are a few causes for this, and I go into more depth in the article I just linked to.

Why are my Monstera’s leaves going black?

Monstera leaves develop black or brown patches when leaf tissue degenerates. We can figure out what’s wrong with your Monstera based on the color, texture, and placement of the spots.


To start, overwatering is the primary cause of the most prevalent kind of black spot on Monstera leaves. Dark brown or black patches of varied widths at the leaf’s margin or center are signs of overwatering damage. The spots frequently have a yellow ring around the edges and are velvety to the touch. Additionally, overwatered leaves curl.

Additionally, it’s critical that you examine the stem and roots for dark mushy areas as soon as possible if your Monstera exhibits signs of overwatering. Monstera houseplants are most frequently killed by root and stem rot.


The tips and margins of your Monstera’s leaves may develop spots if there is not enough moisture. Leaves that have been overwatered appear limp or curled. Dehydration damage, as opposed to overwatering, results in lighter-brown, crispier-looking leaves from the outside in. This is the simplest technique to distinguish between the causes.

Dehydration harm can be caused by underwatering, low humidity, or a combination of the two. Increase the frequency or volume of irrigation. If you live in a dry area or have the heat on in the winter, you can also use a humidifier to raise the humidity in your home. See our guide to humidity.

Sunburn on Monstera leaves

If burned, monstera leaves have the potential to turn black. On the upper surfaces of leaves closest to the light, sunburned areas that are dry and black or brown form. The obvious sign of sunburn is a silvery gray or bleached color to the foliage.

Direct sunlight from a window or positioning your plant too close to a grow lamp can also cause sunburn. Monsteras naturally grow in the shadow, so unless they are carefully acclimated, the heat from direct sunlight is too much for them. In our article, you can read more about the ideal lighting for Monstera.

Increase the distance between your plants and potentially harmful light sources, only give your Monstera indirect sunlight, and never let your Monstera outside to sunbathe. Check out our guide on the best grow lights for Monstera if your plant requires more light.

Frost Damage

Monstera should never be kept outside throughout the winter in cold locations because they are tropical plants. Houseplant Monsteras are therefore more susceptible to sustain cold damage during shipping or transportation. Get your Monstera back into the warmth as quickly as you can if it accidently comes into contact with frigid conditions within your home.

Frost damage is disastrous because any area of the plant that freezes through will perish as its cells rupture. The leaves and stems of frozen plants will turn black or brown, first appear scorched, and possibly even become moist. It may take several days for the effects of cold injury to fully manifest.

Mechanical Damage

When the physical structure of a monstera leaf is harmed, it can occasionally turn black. Examine your leaves for any rips or tears that can kill the tissue to look for this problem. Mechanical damage will only cause black spots in the torn sections, not throughout the plant as a whole.

Splits, as opposed to rips or tears, occur when a Monstera leaf unfolds. Learn more about the splits in Monstera leaves.

Fungus or Pests on Monstera leaves

Leaf spots caused by bacteria or fungi are small, uniformly sized, brown, damp circles with yellow borders. In my experience, fungal growth is frequently misdiagnosed as the cause of Monstera spots when it is actually overwatering or another pest.

Some sources advise against ever wetting Monstera leaves because doing so will result in fungus. Technically speaking, this is untrue because plants frequently experience wetness in the wild with no ill effects. In actuality, water on leaves might propagate an already established fungus. Water droplets dripping down the leaves of your Monstera or a neighbouring plant can spread spores of a fungus.

Small brown or yellow patches can also be caused by common Monstera pests, such as thrips or spider mites, which siphon the juice from the leaves. In order to recuperate, your Monstera needs an insecticide treatment if it has pests.

Should I trim the Monstera’s black leaves?

Your Monstera Deliciosa may potentially be drying up too quickly due to its root-bound condition. Because there isn’t enough room in the container to hold the water, the soil tends to dry out more quickly.

Repotting your Monstera Deliciosa is necessary if you see the roots poking through the dirt or emerging from the drainage hole.

After you repot your plant, don’t water it for three days while it’s in its new container. You can water it once more three days after the first application.

Provide Proper Shade

The light coming from west and east facing windows is too intense for your Monstera Deliciosa plant, so keep it three feet away from them.

If you can’t put your plant next to an east or west-facing window, try a south-facing window with sheer curtains instead.

If you’ve planted your Monstera Deliciosa outside, position it so that it receives some shade from the direct sunlight under the porch. Rotate your plant’s pot every few days to ensure that all of its parts are getting the same amount of sunshine.

Make sure your Monstera Deliciosa’s leaves are not in direct contact with the windows as this could result in additional damage.

Control the Humidity Level

Put a humidifier next to your plants if the air where you reside has low humidity levels. To boost the humidity around your plant, you can also fill a tray with water and set it nearby.

The water from the tray will evaporate, increasing the humidity around your plant and providing enough moisture for your Monstera Deliciosa.

Provide Proper Fertilization

From March through October, fertilize your Monstera Deliciosa at least once per month. You shouldn’t sprinkle the leaves of your plant with fertilizer because it can encourage bacterial growth.

Take Precautions to Avoid Pests

Pest risk can be reduced in a number of ways. First, you can look for any evidence of insects, webbing, or damage on your plant.

Second, be sure to separate your new plant for a few weeks from the rest of your plants. This is to make sure that there are no pest infestations on the plant.

Thirdly, every piece of equipment that you utilize for your plant should constantly be sanitized.

Another excellent technique to look out for pests is to inspect your plant. However, pests frequently evade detection since, for the most part, they are little and undetectable unless clustered together.

If you think your Monstera Deliciosa may have been contaminated by bugs, you can spray it with neem oil or wipe it off with rubbing alcohol. It’s crucial to keep in mind that none of these techniques will harm your plant.

Why are the leaves on my Monstera Adansonii becoming black?

While it is uncommon to see a leaf completely turn black, you can notice black spots developing on your Monstera adansonii’s leaves. This is sometimes a symptom of a condition known as “leaf blighta leaf disease,” which is typically brought on by the presence of fungus or bacteria on the leaf.

Improper Watering Habits

Typically, leaf blight starts as a result of poor misting or watering techniques. The blight is frequently visible on the lowest leaves of the plant (caused by water splashing up when poured) or the top leaves (caused by water mists dripping down).

Spray the water around your Monstera plant to provide its leaves and stems a more humid environment when spraying it. Water can build up on the leaves if it is misted directly onto the plant. Standing water fosters the growth of bacteria and fungus since the leaves of all plants, especially indoor types, are covered in microscopic debris, dead cells, and bacteria.

The fungus may occasionally be white in color, which denotes mildew or another type of fungal infection. However, the answer will be the same regardless of color.

The blight will gradually spread, just like mold on produce. Blighted leaves should be removed from the plant using clean pruning shears before being thrown away to protect the remaining healthy leaves. To prevent the illness from spreading to the stems, make sure that none of the diseased leaves fall into the planter.

Pour the water onto the plant gently and at a shallow angle to the soil. Avoid spraying the leaves or stems with water from a pitcher or container. In the future, avoid letting any water sit on your Monstera plant, and think about setting up a humidifier safely away from it to add humidity without actual moisture.

Direct Sun Exposure

An further cause for black dots on leaves is severe burns brought on by exposure to heat or sunshine. The black spots in this instance will often feel dry or brittle.

Near Hot/Cold Drafts

It just takes a brief exposure to this kind of heat to severely harm a plant. Radiators and space heaters can also be a source of leaf burns. To protect the delicate leaves of your Swiss cheese plant, make sure the environment where your Monstera grows is free from any sources of extreme heat or light.