Why Are My Anthurium Leaves Curling?

Last Updated on November 22, 2022 by Stephanie

When your anthuriums leaves curl, you may be experiencing an issue of stress. Ill walk your through some of the frequent causes , and a few less common possible issues as well.

The most common reason for curly leaves on anthurium is due to the absence of water. It could be caused by the plant being underwater or a lack of humidity in the atmosphere surrounding the plant. In addition, stress from temperature or diseases as well as insects can cause problems with curling leaves. Whatever the cause, the result is the same - curly leaves that brown and dry before falling from the plants.

Well also look at ways to assist you in getting the leaves of your Anthurium back to their stunning best.

Underwatering

If you do not provide enough water to your Anthurium it will soon notify you. The leaves will drop and become curled, and then turn brown before dropping off the plant.

The reason for this is that when theres not enough water in the cell walls of the leaves well-hydrated, they start to shrink, which causes the leaf to curled.

This prevents the plant from losing more water through its leaves since the surface area exposed is reduced.

Solution

Make sure to water your Anthurium plant on a regular basis and test the level of moisture in the potting mix each day. The frequency of watering depends on the weather conditions.

In hot weather, you may require watering your plant every few days. In cooler temperatures every week, once or less is sufficient.

Be sure to give your plant water only when it is in need. Utilize your fingers to examine the top one or two inches of potting mix. If its dry, then give your plant water.

Another method to test is to hold the pot up and If it is like its light, your plant requires water. It is also possible to use an instrument to monitor the level of moisture in the mix of potting.

To ensure that your plant has an optimum root system and to prevent diseases from occurring you can water it from beneath by placing it inside an ice tray for about an hour. Do not leave it in the water too long since the soil that is soaked with water can cause root decay.

Low Humidity

Anthuriums are tropical plant species that belong in the tropical rainforests of South America. They require a humid climate to flourish and can quickly exhibit signs of dehydration when placed in an area that is not able to provide sufficient humidity.

If your leaves of the plant are curled, dry and browning at the edges, it could be the cause. A plants low humidity causes it shed water from its leaves (a process known as transpiration) more quickly than it normally would.

The plant isnt able to replenish the water in a timely manner and cells start to fall apart. A low humidity level can cause a plant to die in just only a few days, which is why its crucial to address it immediately if you suspect the issue.

Solution

Check that the humidity within your plant is between 70-80 percent. The average homes humidity is around 45%, therefore youll likely require a significant increase in the humidity of your home to keep your plant healthy.

There are several ways to accomplish this: purchase an electric humidifier or put your plants on humidity tray.

They are basically trays of water beneath the plant, containing pebbles that keep the plant away from the water. You can also place your plant in the hottest area of your house - typically the bathroom.

The root rot is caused by overwatering

If youve been feeding your Anthurium plenty of water, and its still looking dehydrated with dry, curly leaves, its possible that youve overwatered it and caused root decay.

Root rot is a major problem for all houseplants, and is particularly dangerous since the signs make it appear like the plant requires more water, but in reality, more water will only make the issue more severe.

Root rot is caused by a variety of kinds of microscopic fungi which thrive in moist conditions, like soil that is soaked with water.

The fungus eats away the roots of the plant, and prevents it from absorbing nutrients and water which causes cell collapse, drooping leaves, eventually leading to death.

Solution

Be careful not to drown your plant. Only water it when it requires it, and only when the top layer of the plants potting mix is dry.

Do not water according to a set schedule because this could result in overwatering. Also, ensure that you adjust your watering according to the seasons and the conditions.

A good drainage system is vital to avoid root rot, therefore, ensure that the pot of your plant is well-drained, with plenty of drainage holes at the bottom.

Check out the article below to protect your anthurium from root decay.

Direct sunlight or a lack of light

Anthuriums arent a fan of direct sunlight hitting their leaves. Theyre adapted to the shade of the rainforest , and can be burned if exposed to intense sunlight.

If youve kept your plant in a sunny window or similar location and the leaves are beginning to curl or change color it could be the cause.

While Anthuriums do not like the direct light that hits the leaves of their plants, they do require a significant amount of light in order to be content.

In their natural surroundings they get between 8 and 12 hours of sunlight per day, which is why its best to try to recreate this.

Insufficient sunlight can make your plant tilt towards the closest light source, resulting in fewer flowers, and less affluent flowering leaves.

As the plant struggles to produce enough food to sustain its own growth, the leaves will get tangled and then die.

Solution

Make sure your plant is kept out of direct sunlight, but ensure that it receives plenty of indirect, bright sunlight. A couple of feet from a window would suit the plant perfectly.

Do not place your plant in an extremely dark space such as a room with no windows or in the rear of a shaded space.

Try to provide your plant at least eight hours of daily direct, bright lighting. In the winter months, think about the use of grow lights to give your plants an extra boost.

Temperature Stress

Anthuriums are a part of an environment that is tropical, meaning temperatures dont fluctuate much between night and day or from season to season.

If you place your plant in an area that is exposed to changing temperatures, such as in a window that is drafty or in close proximity to a radiator, the stress can cause the leaf leaves to curl and fall. Extremely cold water may also create stress on the temperature.

Solution

Maintain your plant in a place that is as steady as it can be and far from sources of cold or heat.

Anthuriums thrive in an environment with a steady temperature between 65 and 85 degrees Fahrenheit (18-29degC). Their growth rate will slow drastically if temperatures fall below this level for a long time.

Use room temperature or lukewarm liquid to water the plants to prevent stressing the roots.

In or outfeeding with Fertilizer

If theyre planted in a fertile soil mix, Anthuriums do not require much care in any way. It isnt difficult to do and if youve fed your plant recently and the leaves are curled, it might be the cause.

If youve kept your Anthurium for a lengthy period of time with the exact same mix of potting soil and you havent fed it, the curly leaves may be due to a deficiency of nutrients. It is also likely that the plant will produce fewer flowers in the event that this is the cause.

Solution

In the spring and summer Feed your plant every two weeks with a liquid half-strength fertilizer that is rich in the mineral phosphorous.

If youve just repotted your plant in an incredibly rich potting mix its likely that you wont have feeding it until several months.

Its much more easy to overfeed these plants than to underfeed them If youre not sure whether your plant is in need of feeding, you should wait until you know.

Water Quality

Tap water is contaminated with a variety of undesirable chemicals for Anthuriums, such as mineral salts, chlorine and fluoride. In time, these substances may accumulate within the mix of potting, causing issues for the plant.

The minerals accumulate around the roots of plants, which prevent them from taking in water and other nutrients. They may even cause burning to the roots if they are at a sufficient level.

Solution

Make sure to provide your plant with the best water that is filtered. Be on the lookout for a yellow or white crust appearing on top of the potting mix your plant is using This is an indication that there is a buildup of minerals.

If you observe this, plant the plant with fresh potting mix. Also, If you notice any build-up on the root, wash the roots in clean water.

Diseases

Anthuriums are susceptible to a variety of fungal or bacterial diseases However, plants that are kept indoors are more resistant.

In addition to root rot, these diseases typically result in black or brown spots or blotches on plants stems, leaves, or flowers that gradually expand. The affected areas may begin to curl, then die. (Source: University of Florida)

Solution

If your plant is infected take it out from any other plants in order to prevent spreading the disease. Take infected areas off the plant, if you can.

For fungal illnesses treatments, a fungicide could be beneficial. But both fungal and bacteria-related diseases can be difficult to treat once theyve established themselves and are therefore best to prevent these diseases from the beginning.

Do not reuse contaminated potting mix or equipment without first sterilizing it. Be careful not to splash water on your plant as there are numerous diseases can be spread through this method.

If you can, drink water from below. Misting is frequently suggested to boost humidity, however, it is a good method of spreading disease, therefore it is best to avoid.

Insect Infestation

Anthuriums are generally protected from pests, however the possibility of infestation is there. Anthuriums are susceptible to sap-sucking insects like scale or mealybugs that stick to the leaves or stem that are part of the plant, and feast on sap. In the process, the plant becomes weaker, and the leaves may begin to curl, and then die.

Solution

If you notice insects on your plants then use a pad that has been that has been soaked in ruby alcohol to eliminate the pests. Be sure to check and eliminate any pests as soon you spot they are.

The plant can be sprayed with solution of horticultural soap or oil can deter further infestation.

Anthurium Leaves Curling After Repotting

Repotting can be a risky time for plants as it is easy to harm fragile roots in the process.

If the roots of a plant have been damaged, the roots cant perform as they should and the plant may not be able to absorb enough nutrients or water.

In the event that youve just repotted your plants and the leaves are curly it could be due to this problem.

Most plants can withstand the stress of repotting. It is best to let the plant be alone and let it heal and ensure that you provide it with the highest quality treatment during this time, and try to avoid stressing it even more.

The best method to avoid this issue is to repot your plant only as needed at least every two or three years and taking care to ensure that you dont damage the roots in the process.

Final Words

The curly leaves of an Anthurium is a sign that there is something wrong with the surroundings or in the way you care for the Anthurium.

Fortunately theyre robust, and youll be able to resolve the issue and help save your plant. The most important thing to do is identify the root of the issue and take action quickly.

Stephanie

Stephanie

Went from an inexperienced gardener to a half-decent one over 10+ years. I cover anything from general indoor plant guides and lawn care, to succulents and flowers. Super happy to share my tips and tricks with you :)