How to Grow Anthurium Radicans (Light, Water, Soil & Propagation)

Last Updated on March 19, 2022 by Admin

The Anthurium Radicans is also known as the Anthurium Malyi. It is currently the smallest creeping Anthurium species.

Its most attractive feature are its stunning dark-green bullate leaves. Because of their unique looks and qualities, the plant is often used to produce hybrids.

A few of the better known Anthurium Radicans hybrids include the:

  • Anthurium radicans x dressleri
  • Anthurium luxurians x radicans (or anthurium radicans x luxurians)
  • Anthurium radicans x crystallinum

That said the plant does is sterile therefore, it cannot self-pollinate. Thus, if kept indoors, the best way to grow more is to propagate.

Outdoors, or in their native habitat the plant relies on insects for pollination.

The anthurium radicans x crystallinum is native to South America including Brazil and Ecuador. It is known for having a long lifespan and is easy to care for.

How do you care for Anthurium Radicans? The Anthurium Radicans enjoys bright, indirect light, warm temperature (70 to 90 degrees) and high humidity (70% to 80%).

It is easy to grow as long as you avoid overwatering the plant. Therefore, allow the surface of the soil to dry between waterings.

Also, use a coarse, well-draining potting mix to avoid waterlogging.

Anthurium Radicans Plant Care

Light Requirements

The Anthurium Radicans thrives on bright, indirect light. It can also tolerate moderate and some low light which makes it easy to grow indoors.

That said, for the best growth and more flower blooms, it is best to provide it with bright, indirect light.

The plant is used to living in the tropical rainforests under the canopy of larger trees. As such, it is accustomed to filtered, dappled or diffused light.

Avoid direct sunlight or very strong, intense light as it can burn its leaves and flowers.

Similarly, try to keep it away from too low light including dim and dark areas because the plant will grow slower and produce fewer flowers (or not bloom at all).

Thus, the best locations indoors for the Anthurium Radicans is near an east facing window. It will likewise do well in the west or south facing windows provided that you distance it or protect it from the direct rays of the afternoon sun.

Outdoors, partial shade works best. Again, try to avoid full sun or keep it under the heat of the summer sun.

Note that depending on where you live, you may need to move the plant depending on the time of year. During the summer, avoid intense sun. in the winter, you may need to move it to the brightest spot in the house to get sufficient light.



The Anthurium Radicans temperature preference is also influenced by its tropical rainforest habitat. There it lives in warm, humid conditions in areas of South America.

Thus, the plant enjoys temperature between 70 to 90 degrees Fahrenheit.

While it can still tolerate more heat, you do want to be careful with going much higher than 90 degrees since this can dehydrate the plant due to more moisture evaporation.

Similarly, it can withstand lower temperatures from its ideal range. However, avoid leaving in in climates under 50 degrees or below.

The longer you leave it there or the lower the temperature goes, the more likely it will experience cold stress then damage.

Here, you’ll see the plant wilt, stop growing and start deteriorating until the point where it starts dropping leaves.

The good news is that the temperature range is what many homes have (at least on the lower end of the range). Therefore, you don’t need to make any major adjustments.

However, avoid leaving your Anthurium Radicans near heaters, air conditioners, cold drafts or fireplaces which will affect the temperature.

Outdoors, the plant is best suited for USDA Hardiness Zones 11 and 12.



Another aspect of tropical rainforests is its high humidity. This is because of the regular rain that location receives. As such, the moisture in the air stays high and the soil gets damp.

This is why the Anthurium Radicans prefers humidity between 60% to 80%. It can also tolerate humidity of 50%.

This is something you do need to look out for depending on where you live.

Most homes have humidity that stay between 20% to 50%. And during the winter, the air also gets quite dry.

Therefore, if humidity in your area happens to be low, it is a good idea to keep a hygrometer on hand, so you know if you need to take any action.

Once it drops under 50%, you can employ one or more of these humidity increasing measures.

  • Use a humidifier
  • Move the plant to the bathroom
  • Give the plant a shower every few weeks
  • Place the plant in a humidifying tray
  • Group it with other plants

You can also mis the plant a few times a week although I’m not a huge fan of this method because of you much work it entails.

Misting only helps temporarily, so you do need to mist every few days depending on how low humidity gets. Also, avoid wetting the leaves too much when spraying as this can increase the risk of fungal infection.


How Often to Water Anthurium Radicans

Besides humidity, the biggest thing to monitor with your Anthurium Radicans is watering.

This is important because the plant does not need a lot of water. Therefore, be careful not to keep watering it like other plants.

You only need to water it about once a week on average. Although, the frequency will depend on how cold or hot the weather is.

Thus, avoid, watering it daily as this can cause overwatering which can lead to root rot. I know some people who do this thinking that the plant needs regular watering.

Instead, wait until the top 1 to 2 inches of soil has dried up before adding more water. Following this rule will automatically adjust your watering schedule during the summer and winters.

In the summer, you may end up watering 1 to 3 times a week depending on how hot it gets. In the winter, you’ll likely only need to water once every 2 or 3 weeks.

Therefore, always check the soil before adding more water.

You can do so by sticking your index finger into the soil down to about 1-2 inches deep. If the soil is completely dry there, you can water again. But avoid doing so before then.

If the soil at that depth still feels moist, wait a couple of days before testing again.

Alternatively, you can also use a moisture meter if you don’t like testing the soil with your finger.




Anthurium Radicans Potting Soil

Because of the plant’s susceptibility to watering, using the right potting soil is very important for your Anthurium Radicans.

The best soil for the plant is moist, well-draining, fertile soil. Its ideal soil pH is between 6.1 to 6.5. Keeping soil pH at this level will allow the plant to efficiently absorb minerals from the soil. This way you avoid nutrient excesses and deficiencies.

If you prefer buying potting soil instead of mixing it yourself, look for an Aroid mix. This will be perfect for the plant.

On the other hand, if you don’t mind getting the ingredients separately and following a recipe to mix, you can make your own DIY potting mix for your Anthurium Radicans.

The simplest way is to combine equal parts of:

  • Peat
  • Perlite
  • Pine bark

Alternatively, you can use a combination of orchid mix, potting soil and perlite as well.

This will allow the soil to keep enough moisture so the plant will stay hydrated. But it will drain the excess water in order to avoid waterlogging.



Once you get past moisture, caring for the Anthurium Radicans is simple.

Fertilizer is quite straightforward.

Here, there are two things to keep in mind:

  • The Anthurium Radicans needs fertilizer to achieve optimal growth
  • But avoid overfeeding it

Instead, just follow the instructions on the label of the product.

Use a good quality liquid fertilizer and dilute it to half strength by adding water. Then apply once every 2 or 3 months. You can also use slow release fertilizer if you wish.

Only feed the plant during spring and summer. This is when it is actively growing. And giving it sufficient nutrients will help it grow fast during these times.

Once the cold comes, you can stop feeding. By around mid fall and winter the plant’s growth will slow down considerably. Thus, it won’t need plant food.

Avoid over fertilizing the plant because like water, too much is bad. And it can damage or even destroy the plant’s root system.



The Anthurium Radicans is not going to grow into a huge plant. It will get to about one and a half feet tall to two feet max.

If you live in a warm climate region like the tropics where the temperature stays hot and the sun is up all year, the plant will happily grow all 12 months.

But in colder regions, it will grow fastest in the warm months and slow down quite a bit during the colder ones.

Due to its size and the way its leaves grow, the plant does not need a lot of pruning. Although, you may need to prune it every few months if you want to keep it neat and trim or have it maintain a certain shape.

That said, most of the trimming will focus on the leaves. But because these are the most beautiful part of the plant, you don’t want to cut off too much at a time.

In addition to shaping the plant, you can also prune to encourage it to grow if you want a bushier plant.

However, also make sure to remove any yellow, brown, damaged, diseased or old leaves. Doing so will help the plant grow faster.


How to Propagate Anthurium Radicans

The best way to propagate Anthurium Radicans is through stem cuttings. It is the easiest and you can grow many new plants because the plant will produce many stems.

That said, you can also propagate the plant through division or from seed.

For most home growers, stem cuttings is not only the easiest but also the most efficient way to propagate the Anthurium Radicans.

Here’s how to do it.

  • Select a healthy stem with at least 2-3 leaves on it. More importantly, make sure the section you want to get has at least one node on the stem.
  • Take the cutting but snipping it off with a sterilized pair of scissors. Cut just below the node to make sure the node is included with the cutting.
  • Next, fill a small pot with fresh, well-draining potting soil. You can use the recipe above or use an Aroid mix.
  • Use your finger to make a small hole to insert the cutting into the soil. Make sure the nodes are buried under the soil. But remove any leaves that end up getting buried.
  • Water the soil and keep it moist.
  • Place the cutting in bright, indirect light with warm temperature and good humidity. If you don’t have a humid spot in your home, cover the plant with a plastic bag.
  • It will take about 3-4 weeks for the plant to root. During this time, remove the plastic bag once in a while to let fresh air in. Also, water the soil to keep it moist.
  • Once 4 weeks comes around, you can check for roots. One way is to slide out the root ball from the pot and look for roots. Another is to lightly pull on the cutting. It should resist which is a sign that roots have grabbed onto the soil.


How to Repot or Transplant Anthurium Radicans

The Anthurium Radicans is an average grower. Therefore, it won’t grow too fast or too slow. But how quickly it does grow and produce leaves will be influenced by how much light it gets, surrounding humidity, the fertilizer you give it and other factors.

Therefore, the same plant will grow at different rates depending on where you live and how you care for it. So, avoid comparing how quickly it grow with those of other Anthurium Radicans owners.

That said, on average you will likely be repotting it every 2 to 3 years. Although the plant is fine with being slightly root bound so you don’t have to hurry when the time comes.

Once you see roots appear under the drainage holes of the pot, that’s your sign that it wants more room, and the current pot is not big enough.

Move it to a pot that is no larger than 2 inches more than the current one. This will prevent overwatering due to too much soil volume.


Is It Toxic/Poisonous to Humans, Cats & Dogs

Unfortunately, the Anthurium Radicans is toxic to dogs and cats. It is also toxic to humans. However, this only comes into effect when ingested.

Therefore, you can touch the plant safely without any issues.

However, be aware that the sap for the plant is where the poisonous substance are. This means you want to avoid getting into your nose, mouth or eyes. Also, it can cause skin irritation in some people.

So, if you have sensitive skin or allergies, be sure to wear gloves when pruning or propagating.s


Anthurium Radicans Problems & Troubleshooting


The Anthurium Radicans has good resistance to pests. But it is by no means immune to them.

This means that you need to regularly inspect the plant so if any pests happen to come around, you can quickly treat it.

Because the most common pests that attack the Anthurium Radicans are spider mites, mealybugs and aphids, you want to get them as soon as possible.

These are sap sucking insects that feed on the plant’s internal juices. In effect, the steal its moisture and nutrients.

Just as importantly, they grow very quickly in number. So, they can do significant damage within a few days to a week if left alone.

You can use water to spray off the bugs. This will take 2 or 3 time to completely get rid of them. Or you can use neem oil.



Diseases are often caused by excess moisture.

And the main culprits are overwatering the soil, wetting the leaves too much or excess humidity. Thus, you do want to watch out for these especially the first one since that’s the most common.

More importantly, it can cause root rot and increase the risk of bacterial and fungal infections.

The plant is also prone to leaf disease as leaf spot and blight. Therefore, make sure the leaves dry quickly after they get wet.

You can ensure this by having enough light, good air circulation and not watering the plant late in the day.

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