Philodendron Xanadu: Winterbourn Plant Care

What is a Philodendron Xanadu?

Philodendron Xanadu, also known as the Philodendron Winterbourn plant, is native to the rainforests of South America.

Due to its large size and hardiness, it has become a popular landscape plant in many tropical areas such as Florida and southern Georgia.

Philodendron Xanadu is known for its large evergreens with deep green dissected leaf fenestrations.

They are popular among many Instagram influencers and are featured in quite a few houseplant books.

Before its current classification, Xanadu philodendron was previously known as Thaumatophyllum Xanadu.

Its classification was changed when it was released as a plant of the year by house plants of Australia.


While many people in USDA grow zones, 9-11 enjoy this plant outdoors. They also make great indoor plants when kept in bright indirect light and organic soil.

Unlike most philodendrons, the Philodendron Xanadu is not a vining plant but instead has a compact growth habit.

Another upright plant in the philodendron genus is the Philodendron Birkin.

Both have a compact appearance, aerial roots, and grow in dense clumps, but the Xanadu is a much larger plant.

Before acquiring a Philodendron Xanadu, it’s essential to note that this plant can get quite large, maxing out at about 3 feet tall and 4 feet wide.

They are also very toxic to kids and animals.

If bringing one home, be sure to keep it somewhere it can’t accidentally be ingested or played with as its stems can release a liquid that is also a skin irritant.

How to Care for Philodendron Xanadu

While many people keep the Xanadu plant outside, this article is focused on keeping the Xanadu philodendron houseplant indoors.

Philodendron Xanadu is very hardy and relatively disease resistant, but it is prone to getting spider mites, aphids, and mealybugs, so keep an eye out for these on your plant. 

Temperature and Climate

Philodendron Xanadu prefers warm temperatures in the daytime and cool temperatures at night.

Daytime temperatures should be around 75-85 degrees Fahrenheit, and nighttime temperatures should be 65-70 degrees Fahrenheit.

This tropical plant prefers high humidity but can acclimate to the humidity found in most homes.

If you want to provide your plant with higher humidity, you can do so by using humidifiers, misting, or clumping other plants around it to create a microclimate.

Be sure to keep your plant away from cooling and heating vents as these can cause the plant to dry out.



Philodendron Xanadu prefers bright indirect light with a few hours of direct sunlight, especially the morning sun every day.

If the plant is in a low light area and doesn’t get enough light, you may notice its leaves turning a yellowish-green color.

This can be a sign of too much water or root rot.

If you notice your plant’s leaves are browning, it is probably getting burnt, and you may need to move it to a spot that gets lower light.

Too much direct sun can cause burning, while too little light can cause stunted plant growth.


Philodendron Xanadu needs a regular watering schedule to thrive. The ideal watering schedule for this philodendron plant is one to two times per week.

Water until you see excess water draining out of the drainage hole, then allow the soil surface to dry out before watering again.

Always check the soil with your finger to see if your plant is ready for water. If it is still wet, wait another day or two. If it is dry or nearly dry, you are good to water it.

If you’re looking for a pot with drainage holes, take a look at this self-watering container. It is what we use for our indoor plants as there’s no need to worry about overwatering.

Unique 10" Self-Watering, Aerating, High Drainage Plant Pot with Deep Saucer (10 Inch,...
  • SELF-WATERING, 2-WEEKS+ DEEP RESERVOIR: No more troublesome wicks that clog...
  • WATER FROM THE BOTTOM + NO MORE OVERFLOW: Each planter comes with a clip-on...


A well-draining soil high in organic matter is ideal for Philodendron Xanadu.

An excellent DIY soil choice is two parts potting soil to one part perlite. However, any commercial organic potting soil will work.

If you’re looking for general potting soil for houseplants, we recommend this particular houseplant potting soil. It’s nothing special, but it works for all our indoor plants – plus, it’s inexpensive.

Miracle-Gro Houseplant Potting Mix: Fertilized, Perlite Soil for Indoor Gardening,...
  • Growing indoors is easy under the right conditions; Miracle-Gro Houseplant...
  • Recommended for growing beautiful indoor houseplant varieties like Pothos,...
  • This indoor plant soil is less prone to gnats, thanks to the combination of...


You will want to fertilize your plant in the spring and summer growing season with a balanced fertilizer.

As the plant ages and its root ball gets larger, it will need more fertilizer. I recommend one to two times per month with a 10-10-10 fertilizer.



You will want to repot your philodendron when you see roots coming out of the bottom of the drainage hole.

The root ball of this plant does not like to have too much room or to be too crowded, so choosing a pot that is several inches in diameter larger than your existing pot is ideal.

Be careful to wear gloves when repotting, as the plant’s sap can cause skin irritation.



No Xanadu philodendron care sheet is complete without a guide on propagation.

To learn more about propagating, read further:

While this philodendron is not a climber, its lobed leaves can be propagated like most other Philodendrons by leaf cutting.

Place the leaf-cutting in its container, like a vase. You should see new growth and roots forming from the stems in about two to three weeks.

Once you see roots, you can place them in soil like its parent.


Is a Philodendron Xanadu Plant Rare?

Philodendrons Xanadu is a reasonably common houseplant. You can find them at most big box stores and small family garden centers. However, the Golden Philodendron Xanadu variety is scarce and highly coveted among people growing houseplants.

Can Philodendron Xanadu plants be in full sun?

Too much light can cause the leaves on Xanadu philodendron plants to burn, but a few hours of direct sun in the morning can be beneficial. Yellow leaves can signify that your plant is not getting enough sunlight.

Is a Philodendron Xanadu an indoor plant?

Yes, Xanadu philodendron care is relatively simple. This easy-to-grow plant needs regular watering, bright indirect light, and fertilizer in the growing season to thrive as a house plant. When grown indoors, this plant needs more light than it usually requires outside.

Other Philodendron Plants to Consider

Philodendron plants come in a variety of shapes and sizes, making them a popular houseplant choice. Here is a list of other Philodendron plants to consider for your home, office, or outdoor garden.


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