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Philodendron Pastazanum – Heart-Shaped Leaves Plant

by gardeningit
Philodendron Pastazanum

Philodendron Pastazanum is a beautiful, creeping Aroid plant with soft leaves. These leaves are broad, green, and exceptionally beautiful, making them perfect for an indoor setting. But apart from being so beautiful, it has care requirements and maintenance that will surprise you. For these reasons, many botanical gardens worldwide have this plant as an essential part of their display collection.

To know more about this plant and how you can care for it properly, keep on reading!


  • Family: Araceae
  • Subfamily: Aroideae
  • Genus: Philodendron

About the Genus Philodendron

With over 400 different species in the genus, Philodendron is one of the two most abundant genera in its family. In 1829, these plants were collectively named Philodendron or “tree hugger,” different from the fact that they grew climbing on trees.

Even though all of these four hundred plants differ in their size and appearance, they are all equally glamorous and perfect for indoor display. Philodendron plants feature and are widely known for their large, beautiful foliage. Some have oral leaves, some heart-shaped ones, and some have a variety of colors displayed on them. However, all of them have thick, leathery leaves that prevent loss of moisture. This way, these plants can survive without an external source of water for a considerable amount of time.

Origin and Distribution

The earliest forms of philodendron plants date back to 1644, and they were native to Colombia. Philodendron plants like to grow in places with a tropical environment such as rain forests, swamps, and river banks. They grow in these areas and the West Indies, America, Australia, Asia, and Africa. However, Philodendron Pastazanum comes mainly from Columbia.

Philodendron Pastazanum Features

Foliage and Stem

This species has broad, green, heart-shaped leaves that can grow as wide as 2 feet. These leaves are white-veined, deeply lobed, and have a glossy finish. Because these leaves are so large and heavy, providing firm support to the plant is sometimes essential.


Good news for those who want to display their Philodendron Pastazanum indoors, these plants are evergreen. It means that they stay beautiful and broad all seasons of the year and do not shed their leaves.


Under the right conditions and care, these plants can grow as tall as 3 to 5 feet and spread as wide as 4 to 6 feet. However, it is a creeping plant, so it will grow and spread as per space you give it.

Temperature Tolerance

Because it originates from a warm area, Philodendron Pastazanum is a plant warmth-loving plant. However, these plants can tolerate a minimum of 10 degrees Celsius to thrive. Any harsh or sudden fluctuations in temperature should be avoided at all costs.

Humidity Tolerance

With Philodendrons, you can be as generous with humidity as you want. You can mist these plants or put them around humidifiers and let the air’s moisture do its job.


During the blooming season, these plants grow white flowers in the form of spathes. However, the main feature of the Philodendron Pastazanum plant remains its foliage.


These plants can indeed survive without water for a certain amount of time. Still, because it needs plenty of humidity in the air, Philodendron Pastazanum plants will not do well under drought-like conditions.

Pressure Tolerance

The thick, leathery leaves of Pastazanum Philodendron prevent it from being hurt under pressure. However, because it grows in a creeping nature, being under pressure means that it will not grow to its maximum potential. So, make sure that you keep it somewhere free and in a spacious corner.

Disease and Pest Resistance

Even though they have a tough exterior, these plants are not entirely resistant to diseases and pests. Some of the most common ones include Erwinia Blight, Pseudomonas Leaf Spot, and the Xanthomonas leaf spot. Common bugs that might appear on your plant include aphids and mealybugs.

However, these problems only appear on plants that are prone to be infected or attacked. They include species living in inadequate or inappropriate conditions, particularly high humidity and low light. To avoid them and prevent growing problems, keep the plant under optimum conditions, water them correctly, and maintain the air’s moisture.


Generally, these plants tend to grow slowly. However, under the right conditions, you can speed up their growth as well. It means that the plant’s growth rate generally depends on the environment you keep it in.


Every Philodendron Pastazanum is a toxic plant that contains calcium oxalate crystals. If ingested, these crystals can cause mild to severe symptoms in humans as well as animals. Symptoms can range from stomach aches to the swelling of mouth and tongue and lead to the inability to breathe under severe conditions.


The perennial lifestyle of a Philodendron Pastazanum leads to its increased durability. To be perennial means that these plants can live from 2 to 3 years to as long as decades. For this, the condition is that they are given the right care and environment. Pathologies such as bacterial or fungal infections, or inadequate conditions can kill the plant quickly.


Considering that it does not need anything extra in terms of your time or money, a Philodendron Pastazanum plant is relatively low-maintenance.


During the winter season, these plants generally ” go to sleep,” meaning that they stop growing and conserve whatever water or food is given to them. During this part of their life, make sure you do not propagate the plant or mess with it in any way. Let it be, and continue its usual care as soon as it “wakes up” in Spring.

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Philodendron Pastazanum Care

For Philodendron Pastazanum care, give these plants regular watering of moderate amounts and keep them in a well-lit room. Also, make sure they are living in warm temperatures and nutrient-rich soil. To boost their growth even further, you can use fertilizers every month.

Water Requirements

Philodendron Pastazanum plants are relatively tolerant when it comes to water requirements. They will not die immediately under water-deficient conditions. However, keeping them in such an environment for long periods can make it look dull, and your plant will eventually start to wilt. To avoid this, water these plants regularly in moderate amounts, staying far away from the possibility of overwatering. To make sure that it is the right time to water it again, check the plant’s soil texture with your fingers and see if it is dry on top. If it is, you’re good to go. You can also utilize a moisture meter to be more precise and accurate.

Soil Requirements

These plants require a well-draining, rich soil that has a high content of organic matter. Such a soil makes them fertile and an optimum substrate to grow in. Stay away from dry and sandy textures, and make sure that the soil stays moist but not wet. You may add peat moss or perlite for added efficiency of the soil. Orchid bark is also an excellent soil amendment. Maintain the soil pH from slightly acidic to neutral (5.5 to 6.0).

Sunlight Requirements

A corner under semi-shade is the perfect environment for a Philodendron Pastazanum plant. Because they are of rainforest origins, maintaining a similar amount of sunlight is essential for maximum growth. If you cannot manage such an environment, use shade cloth or sheer curtains to block the direct sunlight from heating the plant.

Temperature Requirements

These plants are tropical in nature, which is why they love temperate environments. A minimum of 55 degrees Fahrenheit is essential, while you can go as high as 80 degrees. Ensure that it is not exposed to harsh temperatures and certain situations in the environment.

Philodendron Pastazanum Humidity Requirements

Maximum humidity is an essential part of Philodendron Pastazanum care if you want these plans to grow. The moisture in the air is as crucial as the moisture in the soil. Therefore, you must make some extra efforts to meet Philodendron Pastazanum humidity requirements. These efforts may include installing an indoor humidifier, misting the plant, and putting the plant in a pebble tray filled with water.

Fertilizer Requirements

Monthly fertilizing can help the plant grow well and boost its growth rate. You can use any high-quality fertilizer for this purpose. Low-quality plant fertilizers have salts in them, which can kill your plant faster than you may expect. However, make sure that you spread it at least 6 inches from the plant’s base.

Grooming and Pruning

Because of their neat and singular growing habit, you do not have to prune the plant. However, grooming them and keeping them well maintained is essential to avoid growing problems such as diseases or pest attacks. You can mist the plant with distilled water and wipe it clean. While doing this, take the opportunity to inspect the plant thoroughly around its leaves and stems to make sure everything is clear.

Cultivation and Propagation

Pastazanum can be propagated during the spring season, as soon as they start to come out of dormancy. You can do this in three ways: Philodendron Pastazanum seeds, stem cuttings, and tip cuttings. You also have the opportunity to propagate them in water or soil.

  • Sterilize and sanitize all of your equipment and tools. You don’t want to hurt yourself or spread any germs or infections.
  • If you wish to use a stem cutting, use a sharp knife or a pair of scissors and gently cut off a piece of stem at least 2 to 3 inches in length. If you want to use a tip cutting for propagation, cut a similar section of a stem with some leaves on its tip.
  • To propagate via Philodendron Pastazanum seeds, remove one from the plant, and thoroughly wash it.
  • If you choose the water propagation method, place your cuttings in a jar filled with water. Ensure that the jar is not filled all the way up to the top. Be sure to leave at least one inch from the rim.
  • Place the cutting so that one or two nodes fall below the waterline, and a few leaves stand out of it.
  • If you choose the soil propagation method, prepare a pot with the right kind of soil. Maintain its texture as moist and not wet. Now, place your stem cutting, tip cutting, or your seeds into the soil.
  • Now, place the jar or your pot in optimum conditions with warmer temperatures and bright lights.
  • Water and fertilize it as needed.
  • When you see roots growing in the water propagating cutting, shift it to a larger pot.
  • If you want to add to the humidity factor, cover the pot with a clear, plastic bag.
  • To make the plants grow even faster, dip the cut end of your stem and tip cuttings in growth hormone.


Day 1-7: place your seed, stem, or trip cutting in the selected medium and put it under optimum conditions. During this phase of growth, you can fertilize and water the plant frequently.

Week 2-3: during this time, you will notice roots visibly growing.

Month 2-4: once you feel like the roots have grown to a considerable length and will tolerate a change in the environment, you can shift the baby plant to a proper pot with suitable soil.

Philodendron Pastazanum vs. Plowmanii

The current debate of a Philodendron Pastazanum Vs. Philodendron Plowmanii can be a little tough to solve. The difference between the two species lies in their appearance. A Philodendron Plowmanii has medium green petioles that are glossy as well as streaked on the upper surface. Undulations appear on the apex or top and near the leaf blade. They are usually reddish-purple.

On the other hand, Philodendron Pastazanum has firm petioles that are medium to dark green and semi-glossy. They have white longitudinal stripes. Furthermore, these plants have a V-shaped sinus which differentiates it from a Philodendron Plowmanii.

Final Thoughts

Philodendron Pastazanum is a gorgeous plant with broad, green leaves and an easy-to-maintain lifestyle. These plants are not only stunning for display, but they also clean the air you breathe and make your environment fresher. You can display them in any specious corner of the house, and they will sit there looking gorgeous on their own. However, they are severely toxic, so you must keep them out of children’s and pets’ reach.

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