How to Care for Philodendron Warscewiczii Indoors & Outdoors

The Philodendron Warscewiczii is a rare plant that’s very difficult to find. As you would expect, it is highly sought after by collectors.

It is a large aroid that produces amazing leaves that split making it look like the Phlodendron bipinnatifidum.

This philodendron plant is native to the tropical regions of Central and South America, which is why is enjoys temperate conditions.

How do you care for the Philodendron Warscewiczii? The plant thrives in bright, indirect light or partial shade. It needs a lot of space so many growers prefer keeping it outdoors.

The plant grows best in consistently warm temperatures and high humidity. It also needs fertilizer to reach its potential. Only water when the top few inches of soil dry up since it is prone to overwatering.

Philodendron Warscewiczii Plant Care

Light Requirements

The Philodendron Warscewiczii needs medium to bright indirect light if you want it to grow optimally. This will let it grow bigger and produce more leaves.

Good lighting is also important if you want the plant to produce its lovely leaf splits.

That said, the plant can tolerate low light which makes it easy to grow indoors.

But when there is less light, it will grow slower.

This means it will produce fewer leaves and the leaves won’t be as big or as vibrant as if kept in bright indirect light.

The reason is that the plant uses light as the raw material for photosynthesis, which in turn, is the process by which it creates energy to support its functions and grow.

However, while the plant is tropical in nature, keep it mind that it there’s such a thing as too much light.

That’s because it lives under the forest canopy. It size is considerably smaller than the huge trees which means that it lives under the shade in the forest.

Thus, it cannot tolerate too much direct sunlight especially during noon to mid-afternoon when the sun is very intense.

Therefore, avoid leaving it near a south facing window with lots of direct sunlight.

Outdoors, it will grow better in partials shade like in a balcony, patio or under a tree. Avoid full sun.

 

Temperature

The Philodendron Warscewiczii is native to Central and South America. Both regions have tropical weather that ranges from hot to humid throughout the year.

As such, the plant is used to warm weather.

Again, because it lives under the shade of the large trees, is has become more accustomed to moderate to warm conditions

This is why it prefers temperatures between 60 and 85 degrees Fahrenheit.

On the other hand, avoid leaving it in temperatures below 55 degrees Fahrenheit.

The plant is not cold hardy not does it tolerate chills and cold fronts. That’s because the tropics don’t have winter.

Therefore, if you leave the Philodendron Warscewiczii outdoors during the summer, don’t forget to take it back indoors come fall. Never leave it outdoors during winter.

The only exception to this is if you live in USDA Hardiness Zones 9 to 11.

These areas have sunshine and warm weather all year round. So, the plant will happily stay outdoors the entire year if you want.

 

Humidity

The Philodendron Warscewiczii has high humidity preference. Again, this comes from its tropical rainforest habitat.

As such, the plant prefers humidity between 50% to 70%. This is the environment where it will produce its most beautiful leaves.

That said, the plant can tolerate 40% humidity and a bit lower than that.

This makes it somewhat easier to care for indoors. Nevertheless, it can be a challenge depending on where you live.

Note that indoor humidity is always lower than outdoor humidity. So, always check each room individually and don’t just rely on what the outdoor humidity is based on the weather channel.

The good news is if you keep the plant well-hydrated, it will be better able to tolerate low humidity.

But, be careful about overwatering the plant. I’ll talk more about this in the following section.

 

Related

 

How Often to Water Philodendron Warscewiczii

Watering is the trickiest part of caring for the Philodendron Warscewiczii.

That’s because it enjoys moist soil but hates wet conditions. In fact, it is prone to overwatering and root rot.

Additionally, the plant as some tolerant to dryness. Therefore, it is much safer to stay on the dry side of things than to water the plant too often.

Another thing that makes watering challenging is that how much water the Philodendron Warscewiczii needs will vary based on the time of year.

This is less prominent if you live somewhere with fairly consistent weather.

The changes will be less pronounced.

However, in areas with four seasons, the difference between how fast he soil dries in summer compared to winter will be very significantly.

This is why it is not a good idea to use a fixed schedule.

If you live in the tropics, you can get away with this since you’ll usually end up watering daily or every other day more or less.

The same is true in some parts of the country with more Mediterranean or warm weather all year round.

Average watering will vary from one a week to once every few days. But it will be fairly consistent.

But in the if you get snow and very hot summers, you may find yourself watering 2 or 3 times a week during the summer and only once every 2 to 3 weeks in the winter.

Therefore, I prefer to rely on the soil to know when to water.

The best way to do this is feel the soil. Stick your finger down a few inches into the soil.

Only water when the top 2 or 3 inches have dried out completely. Never do so before then. This will prevent overwatering.

 

Philodendron Warscewiczii Potting Soil

Since the Philodendron Warscewiczii grows epiphytically on trees or can be seen on rocky terrain, you don’t necessarily need to use soil if you don’t want to.

You can use a bark, tree trunk or something similar instead of the more traditional pot and soil setup.

That said, growing the plant in potting mix seems to be the most common way.

Therefore, if you opt to do so, make sure to use light, porous, well-draining soil that’s high in organic matter.

Good drainage and aeration are important because of how the plant grows in its natural habitat.

As an epiphyte, the plant clings onto trees using its roots. Therefore, they get a lot of air. Because it rains a lot in the rainforest, the roots get a lot of moisture.

However, moisture quickly dries up because of the light and air circulation.

This is why the plant does not like sitting in water for long periods of time.

When it grows on rocks, the same thing happens because locks have a lot of space in between them for air to flow though.

They also allow the wet roots rot drip quickly which speeds up drying.

Therefore, always go with a well-draining soil.

You can use an aroid mix if you prefer buying potting soil. Or you can make your own DIY potting mix at home. Here’s what I’ve found to work really well for the plant.

  • 1 part potting soil
  • 1 part coco chips or coco fiber

If you don’t have coco chips or coco fiber, you can use orchid bark instead.

The potting soil provides organic matter and will retain moisture. Meanwhile, the coco chips, coco fiber or orchid bark are all chunky which not only increases drainage but allows good air circulation to the roots.

 

Fertilizer

The Philodendron Warscewiczii is a light feeder. As such, be careful not to over fertilize the plant as this can damage it and cause its leaves to turn brown or yellow.

Instead, the important thing is not so much to try and maximize feeding, but instead to make sure the plant gets the nutrients it needs.

Therefore, all it needs is a balanced, liquid fertilizer dilute to 50% strength. Apply this every 4 weeks during the spring and summer.

Make sure that the fertilizer you use has enough nitrogen. This is the first digit of the N-P-K ratio that’s on the label.

Make sure the N is not a smaller number compared to the other two digital.

 

Pruning

The Philodendron Warscewiczii will grow to a good sized plant even indoors. So, it will need space on the floor eventually. Its leaves will likewise get big reaching 2 to 3 feet in size.

That said, the plant will be much bigger if you decide to grow it outdoors.

Another thing worth noting is that it is a fast grower.

Therefore, it will need pruning if you want to limit its size.

However, how much you prune will ultimately depend on how much space you have and what kind of look you want the plant to have.

Of course, you can keep the plant in the living room, patio, porch or under a tree in your backyard. It is really up to you.

 

How to Propagate Philodendron Warscewiczii

There are many ways to propagate the Philodendron Warscewiczii. The most common ones include:

  • Stem cuttings
  • Air layering
  • Division

Of the three methods, stem cutting is the most efficient because you can do it anytime, you can grow many new plants simultaneously and it is very easy to do.

Of course, if the plant has gotten big and you want to reduce its size, you can divide it to do so.

Here’s how to propagate the Philodendron Warscewiczii from stem cuttings.

  • Choose one or more healthy stems that you can propagate with. Make sure each candidate stem has at least one node and a few leaves on it. The more nodes the better.
  • Use a sterile pair or pruning shears and cut the stem just below a node.
  • Prepare a pot and it with well-draining soil.
  • Plant the cuttings in the pot with the nodes buried in the soil. If you have rooting hormone, apply it on the cuttings.
  • Place the pot in a bright spot with no direct light.
  • Water the soil and keep it moist.

It takes about a month for the roots to start getting established.

 

How to Repot or Transplant Philodendron Warscewiczii

The Philodendron Warscewiczii can be grown in a pot although you do need to be mindful of its size.

It will only take a few years to get big. And you’ll soon be keeping it in a 10 inch pot.

Because it is a fast grower, it does not take too long before it gets root bound.

In most cases, it will only take about 12 to 18 months before you need to repot it. However, don’t just rely on the estimates.

Instead, check the bottom of the pot to see if there are quite a few roots coming out from the holes. This is your sign to repot.

Due to its size, you have a few options when repotting.

One is to repot to a larger pot. This is the usual method. But it also means you’re okay with the plant growing bigger.

Another option is to prune its roots and leaves. This is your best choice if you’re already happy with the plant’s size.

In doing soi, you can repot the plant in the same pot and just refresh the potting mix.

A third option is to divide the plant. Here, you’ll be propagating the big mother plant into 2 or more smaller plants. Then potting them up separately.

As such, you end up reducing the size of the mother plant. But in this case you now have more than one Philodendron Warscewiczii.

 

Is It Toxic/Poisonous to Humans, Cats & Dogs

Keep the Philodendron Warscewiczii away from young children, dogs and cats. It is toxic when ingest, swallowed, chewed or consumed.

As such, try to avoid any accidents by keeping the plant out of reach of young kids and pets.

 

Philodendron Warscewiczii Problems & Troubleshooting

Pests

The Philodendron Warscewiczii is fairly resistant to pests. Therefore, you may never have to deal with any of them throughout the lifespan of the plant.

However, that does not mean it is immune to them.

In fact, it can get attacked by common houseplants pests including mealybugs, aphids, spider mites and thrips.

As such, keeping the plant healthy and cleaning it leaves go a long way it keeps the bugs away.

Also, it helps to apply neem oil or insecticidal soap once a month to prevent pests.

 

Diseases

Overwatering makes the Philodendron Warscewiczii prone to root rot.

Because of how dangerous root rot is, it is important to avoid overwatering and waterlogged soil at all costs.

The best way to do this is to wait until part of the soil has dried before adding more water. Also, use well-draining soil. And make sure your pot has drainage holes.

These will keep waterlogging and overwatering at bay to keep the plant safe.

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