Philodendron Red Sun: A Guide to Growing and Caring for 2023

Philodendron Red Sun, with its striking and vibrant foliage, has captured the attention of plant enthusiasts worldwide. This stunning cultivar of the Philodendron genus showcases a mesmerizing display of red, burgundy, and bronze tones, adding a touch of exotic beauty to any indoor or outdoor space. Renowned for its resilience and low-maintenance nature, Philodendron Red Sun is an excellent choice for new and experienced plant lovers.

In this comprehensive guide, we will dive into the world of the Philodendron Red Sun, exploring its origins, unique features, cultivation requirements, and tips for successful care. Whether you’re a seasoned plant enthusiast looking to expand your collection or a beginner taking your first steps into the world of indoor gardening, this guide will help you with the knowledge and confidence to cultivate and enjoy the beauty of  Philodendron Red Sun to its fullest potential. Let’s start a journey to discover the captivating allure of this remarkable plant.

What is Philodendron Red Sun?

Philodendron Red Sun is a cultivar of the Philodendron genus, known for its vibrant and eye-catching foliage. It features large, heart-shaped leaves with unique red coloration, especially on the newer growth. The leaves can vary in shades of red, ranging from deep maroon to bright crimson. The vibrant red coloration of the leaves sets it apart from other philodendron varieties, adding a striking and decorative element to indoor spaces. Like other philodendrons, the Red Sun variety is relatively easy to care for, making it a popular choice among houseplant enthusiasts.

philodendron red sun


Originating from the tropical regions of Central and South America, this unique cultivar belongs to the Araceae family and shares its genus with numerous other popular houseplants. The Greek words “Philos” and “dendron,” which mean “love” and “tree,” respectively, are the source of the name “red sun.” The particular nickname “red sun” refers to the young leaves’ reddish hue.

Philodendron Red Sun Scientific Name

The scientific name of Philodendron Red Sun is Philodendron Selloum ‘Sun Red’. The genus name, Philodendron, comes from the Greek words “Philo” meaning love, and “dendron” meaning tree, reflecting the fondness people have for these plants. The name ‘Red Sun’ is used to denote the vibrant and intense red hues exhibited by the leaves of this cultivar.

Unique Features of Red Sun Philodendron

Philodendron Red Sun has some unique features that set it apart from other plants and make it an exceptional addition to any indoor or outdoor space. Let’s explore some remarkable features to identify the correct red sun plant:

Vibrant Foliage

The most distinctive feature of the Philodendron Red Sun is its stunning foliage. The leaves exhibit a captivating array of vibrant red, burgundy, and bronze tones, creating a striking visual contrast to the typical green foliage of other plants. The intensity of the coloration often deepens when the plant receives sufficient bright light, making it a captivating centerpiece in any setting.

Heart-Shaped Leaves

Similar to other philodendron varieties, Philodendron Red Sun features heart-shaped leaves. The foliage is typically large and lush, adding a touch of elegance and natural beauty to any space. The glossy texture of the leaves enhances their visual appeal, reflecting light and further highlighting the vibrant colors.

Variegation of Philodendron Sun Red

Some variations of Philodendron Red Sun exhibit variegation, where the foliage showcases patterns or streaks of different colors, such as pink or cream. This adds an extra layer of visual interest and uniqueness to the plant, making it even more eye-catching and desirable for collectors.

Low-Light Tolerance

Despite its vibrant coloration, Philodendron Red Sun demonstrates a notable tolerance for lower light conditions. While it thrives in bright, indirect light, it can adapt and still grow reasonably well in areas with moderate to low light levels. This characteristic makes it an excellent choice for spaces with limited natural light, such as offices or rooms away from windows.

Air-Purifying Properties 

Like other philodendron species, Philodendron Red Sun contributes to improving indoor air quality. Through its natural ability to filter and cleanse the air, it helps remove toxins and airborne pollutants, promoting a healthier and more enjoyable environment.

Versatile Growth Habit

Philodendron Red Sun typically exhibits a vining growth habit, allowing it to trail gracefully from hanging baskets or climb up supports such as moss poles. It can also be trained to grow in a bushier form, making it a versatile plant for various decorative arrangements and landscaping designs.

Philodendron Red Sun Size

Philodendron Red Sun can vary in size depending on various factors such as environmental conditions and care. Generally, the mature size of Philodendron Red Sun is typically moderate to large. 

The leaves of Philodendron Red Sun can grow to be quite substantial, reaching lengths of around 10 to 20 inches (25 to 50 cm). The size of the leaves adds to the plant’s overall visual impact, making it an impressive focal point.

In terms of height, Philodendron Red Sun can grow to be approximately 2 to 4 feet (60 to 120 cm) tall, measured from the base of the pot to the tip of the highest leaf. However, with proper care and ideal conditions, it has the potential to reach even greater heights.

Is  Red Sun Philodendron Toxic?

Yes, Philodendron Red Sun, like many other members of the Philodendron genus, is toxic to humans and pets if ingested. It contains calcium oxalate crystals, which can cause irritation and discomfort when chewed or swallowed. The crystals can irritate the mouth, throat, and digestive system, leading to symptoms such as swelling, burning sensation, difficulty swallowing, and vomiting.

It is important to keep the plant out of reach of children and pets to prevent accidental ingestion. If you suspect that someone has ingested any part of the plant or is experiencing symptoms after contact, it is recommended to seek medical attention or contact a poison control center immediately.

While Philodendron Red Sun adds beauty to indoor spaces, it is essential to handle it with care and be aware of its toxic nature to ensure the safety of everyone in the household, including curious pets.

Quick Overview of Philodendron Red Sun

Common Name Philodendron Red 
Scientific Name Philodendron Selloum ‘Sun Red’
Family Araceae
Origin Americas
Growth Rate Fast Grower
Identification Heart-shaped leaves that vibrant red, burgundy, and bronze tones 
Height 2 to 4 feet height
Soil Well-draining airy soil
Water Allow water when the top inch of the soil feels dry to the touch
Temperature 65-85F
Sunlight Bright indirect sunlight
Toxic to Cats & Dogs Yes
Toxic to Humans Yes
Pests Mealybugs, Aphids, Spider mites
Diseases Root rot, Leaf Spot, Leaf blight


Philodendron Red Sun Care

Taking proper care of the Philodendron Red Sun is essential to ensure its health, growth, and vibrant appearance. Here are some key care guidelines to keep in mind:

Pot Size

When selecting a pot for your Philodendron Red Sun, choose one that allows for proper root development and growth. A pot that is slightly larger than the current root system is recommended, providing enough room for the roots to expand without being overly spacious. A pot with drainage holes is essential to prevent waterlogging and ensure adequate drainage.


Philodendron Red Sun thrives in well-draining soil that retains some moisture. A suitable soil mix can consist of a combination of peat moss, perlite, and a quality potting mix. This mixture helps provide good drainage while retaining enough moisture for the plant’s roots. Avoid using heavy or compacted soil that may lead to waterlogged conditions.


Watering is an important aspect of Philodendron Red Sun care. Keep the soil consistently moist but not overly saturated. Check the top inch of soil and water when it feels slightly dry. Pour water slowly and evenly around the soil, allowing it to absorb without creating standing water. It is better to underwater than overwater, as the plant is more tolerant of drying out slightly between waterings. Regularly check the moisture level of the soil and adjust the watering frequency accordingly.


Proper drainage is essential for the health of the Philodendron Red Sun. Ensure that the pot has drainage holes at the bottom to allow excess water to escape. This prevents water from pooling at the roots, which can lead to root rot and other moisture-related issues. Place a saucer or tray at the bottom of the pot to catch drained water and discard any excess water to prevent the plant from sitting in standing water.


humid leaf

While Philodendron Red Sun can tolerate average humidity levels but it appreciates higher humidity. To increase humidity around the plant, you can use a humidifier in the room or place a tray filled with water and pebbles at the bottom of the pot. As the water evaporates, it creates a humid microclimate around the plant. Regular misting of the leaves with water can also help provide some humidity. However, ensure that the plant is not constantly wet, as excessive moisture can lead to fungal diseases.


Philodendron Red Sun thrives in bright, indirect light. Place it near a window with filtered sunlight where it can receive bright, indirect light for several hours a day. Avoid exposing the plant to direct sunlight, as it can scorch the leaves. If natural light is limited, you can supplement with artificial grow lights, positioning them a few feet above the plant to provide sufficient light energy.


Philodendron Red Sun prefers average to warm temperatures between 65-85°F (18-29°C). Avoid exposing it to sudden temperature fluctuations and drafty areas. Protect the plant from cold drafts, as exposure to cold air can cause damage to the foliage. Keep it away from heating vents or radiators, as direct heat can dry out the plant. Maintaining temperature within its preferred range helps promote healthy growth and prevents stress.


To promote healthy growth and foliage, Philodendron Red Sun needs regular fertilization. Use a balanced, water-soluble fertilizer specifically formulated for houseplants. Dilute the fertilizer to half-strength and apply it every 4-6 weeks during the growing season (spring and summer). Follow the manufacturer’s instructions for dosage and application. Avoid overfertilizing, as it can lead to nutrient burn and damage the plant. During the dormant period (fall and winter), reduce or stop fertilization since the plant’s growth slows down.


pruning shears

Pruning is an important aspect of Philodendron Red Sun care. Regular pruning helps maintain the plant’s shape, removes dead or yellowing leaves, and encourages bushier growth. Use clean, sharp pruning shears or scissors to make clean cuts just above a leaf node. You can trim back leggy or excessively long stems to promote a more compact appearance. Pruning can be done throughout the year as needed. Always sanitize your pruning tools before and after use to prevent the spread of diseases.

Potting Mix and Repotting 

Philodendron Red Sun thrives in a well-draining potting mix. Use a mix that consists of peat moss, perlite, and a quality potting mix in equal parts. This combination ensures good drainage while retaining some moisture.

Repot the plant when it becomes root-bound or every 1-2 years to provide fresh soil and room for growth. Choose a pot that is slightly larger than the current one, with drainage holes. Gently remove the plant from its old pot, loosen the root ball, place it in the new pot, and fill around it with fresh potting mix. Avoid burying the stem too deep. Water the plant thoroughly after repotting to settle the soil.

Regularly inspect the roots during repotting and trim any diseased or rotting roots. Repotting also presents an opportunity to divide the plant if it has outgrown its current pot. Dividing can help rejuvenate the plant and create new individual plants.

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Propagating Philodendron Red Sun

Propagating Philodendron Red Sun is an exciting way to expand your plant collection or share the beauty of this cultivar with others. There are several methods you can use to propagate this plant:

Stem Cuttings

One of the most common and successful propagation methods is through stem cuttings. Select a healthy stem with at least two nodes (points where leaves emerge). Using clean, sharp pruning shears or a knife, make a clean cut just below a node. Remove any lower leaves, leaving a few leaves at the top. Dip the cut end in the rooting hormone (optional) to encourage root development. After that place the cutting in a jar of water or moist soil, ensuring that at least one node is submerged. Keep the cutting in a warm, well-lit area, and mist the leaves occasionally to maintain humidity. Roots should develop within a few weeks, at which point you can transplant the cutting into a pot with well-draining soil.

Air Layering

Air layering is another effective method, especially for larger and more mature plants. Select a healthy stem and make a small opening or remove a section of bark about 4-6 inches below a node. Apply rooting hormone (optional) to the exposed area. Wrap the area with moist sphagnum moss, then cover it with plastic wrap or a plastic bag, securing it tightly with twine or a rubber band. Keep the moss consistently moist and monitor the progress. After several weeks or when roots have developed, carefully cut below the rooted section and plant it in a pot with well-draining soil.


If your Philodendron Red Sun has multiple stems or a clustering growth habit, division can be an effective propagation method. During repotting, carefully separate the plant into smaller sections, ensuring that each division has its own set of roots and stems. Plant the divisions in separate pots with well-draining soil. Water thoroughly and provide appropriate care as they establish themselves.

Regardless of the propagation method you choose, it is important to provide a warm and humid environment, avoid direct sunlight, and keep the soil or rooting medium consistently moist but not waterlogged. Patience is key, as it may take several weeks or even months for roots to develop and new growth to emerge.

Leaf-Related Problems of Sun Red Philodendron

Philodendron Red Sun, like any other plant, can face various leaf-related problems. Here are some common issues you may encounter:

Yellowing Leaves 

Yellow leaves can be a sign of overwatering, underwatering, or nutrient deficiencies. Check the moisture level of the soil, adjust your watering routine accordingly, and ensure the plant is receiving adequate light and proper fertilization.

Browning Leaf Tips

Browning leaf tips can indicate dry air, low humidity, or overfertilization. Increase humidity levels by misting the leaves, using a humidifier, or placing a tray of water near the plant. Avoid overfertilizing and ensure the plant is not exposed to drafts or direct heat sources.

Leaf Spotting 

Leaf spots can be caused by fungal or bacterial infections, which thrive in humid conditions. Ensure good air circulation around the plant, avoid overwatering, and maintain proper spacing between plants. Remove affected leaves and consider applying a suitable fungicide or bactericide if necessary.

Leaf Curling

Leaf curling can result from underwatering, low humidity, or pest infestations. Check the moisture level of the soil and adjust the watering accordingly. Increase humidity levels and inspect the plant for pests such as spider mites or aphids. Treat any infestations promptly with appropriate insecticidal solutions.

Leaf Drooping

Leaf drooping can occur due to underwatering, overwatering, or extreme temperature fluctuations. Ensure the plant is receiving adequate water without becoming waterlogged. Check the soil moisture level and adjust the watering accordingly. Avoid exposing the plant to cold drafts or excessive heat.

Leaf Loss

Leaf loss can occur due to stress, environmental changes, or improper care. Ensure the plant is receiving appropriate light, water, and temperature conditions. Avoid sudden changes in its surroundings and provide consistent care to minimize stress.

Regularly inspect your Philodendron Red Sun for any leaf-related problems, promptly address issues as they arise, and maintain a proper care routine to keep your plant healthy and thriving. If problems persist or worsen, consulting with a plant specialist or horticulturist can provide further guidance and support.

pests and diseases.

Philodendron Red Sun, like other plants, can be susceptible to certain pests and diseases. Here are some common ones to be aware of:


Spider Mites

These tiny pests can cause webbing on the leaves and yellowing. Use a strong jet of water to dislodge them, or apply insecticidal soap or neem oil to control infestations.


These small, cottony insects can cluster in leaf axils and leaf undersides. Remove them manually with a cotton swab dipped in rubbing alcohol, or use insecticidal soap or neem oil to eliminate them.



These small, soft-bodied insects can gather new growth, causing curling and distortion. Remove them by spraying the plant with water or using insecticidal soap or neem oil to control their population.

Scale Insects

These insects appear as small, raised bumps on stems and leaves. They can be difficult to remove due to their protective shells. Use a cotton swab dipped in rubbing alcohol to dislodge them, or apply horticultural oil or insecticidal soap for control.


Leaf Spot

Fungal or bacterial infections can cause brown or black spots on the leaves. Improve air circulation, avoid overhead watering, and remove infected leaves. If necessary, use a suitable fungicide or bactericide as directed.

Root Rot

Overwatering or poorly draining soil can lead to root rot. Ensure proper drainage, avoid overwatering, and consider repotting the plant in fresh, well-draining soil if root rot is severe.

Leaf Blight

This fungal disease causes brown or black spots with yellow halos on the leaves. Remove infected leaves and improve air circulation to prevent further spread. Fungicidal treatments may be necessary.

To prevent and manage pest and disease issues, it is important to maintain good plant hygiene, provide proper cultural care, and regularly inspect your Philodendron Red Sun plant for any signs of infestation or disease. Quarantine new plants before introducing them to your collection, as they can carry pests or diseases. Quickly addressing issues with appropriate treatments can help keep your plant healthy and thriving. If problems persist or worsen, seek guidance from a local plant expert or horticulturist.


Q. How do you take care of a Red Sun Philodendron?

To take care of a red sun philodendron, place it in a bright location with indirect sunlight. Water it regularly, keeping the soil moist but not soggy. Avoid overwatering or letting it dry out completely. Maintain a warm temperature between 65-85°F (18-29°C). Fertilize the plant monthly during the growing season using a balanced houseplant fertilizer.

Q. How big does a Philodendron Red Sun get?

It typically grows to a height of 2-4 feet with a similar spread.

Q.Is Philodendron Red Sun a climbing plant?

It is not a climbing plant, but it can trail or cascade as it grows. 

Q.Why is my Philodendron Red Sun not growing?

If your philodendron red sun is not growing, it might be due to inadequate light, overwatering, or lack of nutrients. Check the plant’s conditions and adjust accordingly to promote healthy growth.

Q. What is the other name for Philodendron Red Sun?

Philodendron Selloum – Sun Red.

Q. Is The Philodendron Red Sun a Rare Plant?

No, It is not a rare plant. It is widely available in garden centers and online nurseries.

Q. Why Are The Leaves Of My Philodendron Turning Brown?

One of the most common problems with this plant is the browning of leaves. It can be caused by overwater or underwater, low humidity, or even cold temperatures.


In summary, Philodendron Red Sun is a remarkable plant that brings beauty and vitality to your indoor garden. With its bright and cheerful foliage, adaptable nature, and ease of care, it is an excellent choice for both beginners and experienced plant lovers. By following the tips and guidelines outlined in this article, you can cultivate, propagate, and enjoy the beauty of Philodendron Red Sun in your own home. Embrace the joy of growing and caring for this remarkable plant, and let it transform your living space into a lush and vibrant oasis.


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