The sharply divided, multi-lobed leaves of this philodendron resemble the shape of an oak leaf. If you’re looking for a statement houseplant with unique foliage, the philodendron mayoi is an excellent choice. This tropical aroid is known for its deeply lobed, glossy leaves that bring a touch of the jungle indoors. It’s a rewarding plant to grow, suitable for both beginners and experienced enthusiasts.
Philodendron Mayoi
Philodendron mayoi is a stunning species native to the rainforests of Brazil. It was formally described in 2006, named in honor of botanist Simon Mayo. Unlike many vining philodendrons, it often exhibits a semi-upright or climbing growth habit. Its most distinctive feature is its deeply pinnatifid leaves, which means they are divided almost to the central rib, creating multiple finger-like lobes. This gives the plant a full, textured appearance that is highly sought after. As it matures, the leaves can become quite large, especially if given a moss pole or other support to climb.
Key Characteristics And Identification
To properly identify and appreciate your philodendron mayoi, look for these specific traits. The leaf shape is the most obvious identifier, setting it apart from similar species like Philodendron bipinnatifidum or selloum. Understanding these characteristics will help you provide the best care.
- Leaf Structure: Leaves are deeply divided into 5 to 11 narrow, pointed lobes. They have a leathery, glossy texture and a vibrant green color.
- Growth Habit: It is a hemiepiphyte, starting life on the forest floor and then climbing trees. Indoors, it will grow as a climber or in a semi-upright bush form.
- Petioles: The leaf stems (petioles) are long, smooth, and often have a reddish or purplish tinge, which adds to its visual appeal.
- Mature Size: In a container, leaves typically reach 12 to 18 inches long. In its natural habitat or in ideal greenhouse conditions, they can grow much larger.
- Root System: Like other aroids, it develops both subterranean roots and aerial roots that seek out moisture and support.
Ideal Growing Conditions
Recreating the philodendron mayoi’s natural rainforest environment is the key to a thriving plant. It prefers conditions that are consistently warm, humid, and bright but not harsh. Sudden changes in temperature or light can stress the plant.
Light Requirements
This philodendron thrives in bright, indirect light. Think of the dappled sunlight that filters through the canopy of taller trees. An east-facing window is often perfect. A west or south-facing window can work if the plant is placed a few feet back or filtered by a sheer curtain. Too much direct sun will scorch the leaves, causing brown, crispy patches. Conversely, too little light will result in smaller leaves, longer stems (legginess), and a loss of that compact, full form. If you only have lower light, consider supplementing with a grow light to keep your plant healthy.
Temperature and Humidity
As a tropical plant, philodendron mayoi enjoys warmth and moisture in the air. Maintaining a stable environment prevents stress and promotes steady growth.
- Temperature: Keep it in a range of 65°F to 80°F (18°C to 27°C). Avoid placing it near drafty windows, air conditioning vents, or heating sources, as cold drafts below 55°F (13°C) can damage the plant.
- Humidity: Aim for 60% humidity or higher. Average home humidity (around 40%) is often tolerated, but higher levels encourage larger, healthier leaves. You can increase humidity by using a pebble tray filled with water, grouping plants together, or employing a room humidifier. Misting provides a temporary boost but is not a long-term solution on its own.
Plant Care And Maintenance
Consistent care is simple once you understand the plant’s basic needs. The main pillars are proper watering, feeding, and soil management. Overwatering is the most common mistake, so when in doubt, it’s better to wait a little longer.
Watering Guidelines
Your philodendron mayoi prefers its soil to partially dry out between waterings. The goal is to keep the root ball moist but not soggy. A good rule is to water thoroughly when the top 1-2 inches of soil feel dry to the touch. Insert your finger into the soil to check. Water slowly and evenly until water flows freely from the drainage holes, then empty the saucer after a few minutes to prevent root rot. In winter, when growth slows, you will need to water less frequently. Yellowing leaves can often be a sign of overwatering, while drooping or curling leaves may indicate thirst.
Soil and Potting Mix
The right soil mix is crucial for drainage and aeration. A standard potting soil is too dense and retains too much water on its own. You need a chunky, well-draining mix that mimics the plant’s epiphytic tendencies.
A simple and effective recipe is:
- 2 parts high-quality indoor potting mix
- 1 part orchid bark or coco chips
- 1 part perlite or pumice
- A handful of horticultural charcoal (optional, helps keep the mix fresh)
This combination ensures water drains quickly while retaining some moisture and allowing air to reach the roots. Repot your philodendron mayoi every 1-2 years in spring, or when you see roots circling the bottom of the pot. Only increase the pot size by 1-2 inches in diameter to prevent excess wet soil.
Fertilizing For Growth
During the active growing season (spring and summer), feeding your plant will support its lush foliage. Use a balanced, water-soluble fertilizer (such as a 10-10-10 or 20-20-20 formula) diluted to half the recommended strength. Apply this every 4-6 weeks. You can also use a slow-release granular fertilizer applied at the beginning of the season. In fall and winter, reduce or stop fertilizing altogether as the plant’s growth naturally slows. Over-fertilizing can lead to salt buildup in the soil, which can burn the roots—if you see a white crust on the soil surface, flush the pot with water.
Support And Training
Providing a support structure allows your philodendron mayoi to grow vertically, which is its natural inclination. This encourages larger leaf development and a more impressive display. Without support, the plant may become sprawling and less tidy.
- Moss Pole: This is the ideal support. The aerial roots can attach to and grow into the moist moss, drawing additional moisture and nutrients. Keep the pole damp.
- Coco Coir Pole or Wooden Plank: These are also suitable alternatives, though aerial roots may not attach as readily as to moss.
- Training: Gently tie the main stem to the pole using soft plant ties or strips of fabric. Do not tie it tightly. As new growth emerges, continue to secure it to encourage upward growth.
Propagation Methods
Propagating philodendron mayoi is a straightforward process, typically done through stem cuttings. The best time to propagate is during the warm growing season when the plant is actively putting out new growth. This gives the new plantlet the best chance to establish itself quickly.
- Select a Cutting: Choose a healthy stem with at least one node (the bump where leaves and roots emerge) and 2-3 leaves. Using clean, sharp scissors or pruners, cut just below a node.
- Rooting in Water: Place the cutting in a jar of room-temperature water, ensuring the node is submerged but the leaves are not. Place it in bright, indirect light. Change the water every few days to keep it fresh. Roots should appear in 2-4 weeks.
- Rooting in Moss/Perlite: For a more seamless transition to soil, you can root the cutting directly in damp sphagnum moss or perlite. Keep the medium consistently moist and enclose the pot in a plastic bag to maintain high humidity.
- Potting Up: Once roots are at least 1-2 inches long, pot the cutting into a small container with your well-draining aroid mix. Keep the soil slightly more moist than usual for the first couple weeks as it adjusts.
Common Problems And Solutions
Even with good care, you might encounter some issues. Most are easily corrected by adjusting your care routine. Early intervention is key to keeping your plant healthy.
Pests and Diseases
Philodendron mayoi can be susceptible to common houseplant pests. Regularly inspect the undersides of leaves and along stems, especially when you water.
- Spider Mites: Look for fine webbing and tiny stippling marks on leaves. Increase humidity and wipe leaves with a damp cloth. For infestations, use insecticidal soap or neem oil.
- Mealybugs: These appear as small, white, cottony masses in leaf axils and on stems. Remove them with a cotton swab dipped in rubbing alcohol.
- Fungus Gnats: Small flies around the soil indicate over-moist conditions. Let the soil dry out more between waterings and use yellow sticky traps. The larvae live in the soil and can damage young roots.
- Root Rot: Caused by chronically wet soil. Symptoms include yellowing leaves, wilting, and a foul smell from the soil. You must remove the plant from its pot, cut away any black, mushy roots, and repot in fresh, dry mix.
Leaf Discoloration and Issues
Leaves are the best indicator of your plant’s health. Changes in color or texture usually point to an environmental issue.
- Yellow Leaves: Often a sign of overwatering. Check your watering schedule and ensure the pot has drainage. Could also be a natural process of older leaves dying off.
- Brown Leaf Tips or Edges: Usually caused by low humidity or underwatering. It can also result from a buildup of salts and minerals from tap water or fertilizer. Try using distilled or rainwater, and flush the soil periodically.
- Brown, Crispy Patches on Leaves: This is typically sunburn from too much direct sunlight. Move the plant to a location with gentler, filtered light.
- Small, Pale Leaves: Usually indicates the plant is not receiving enough light. Move it to a brighter location with indirect light.
Frequently Asked Questions
Is Philodendron Mayoi Rare?
While once considered quite rare, philodendron mayoi has become more available to collectors in recent years. It is not as common as a heartleaf philodendron, but you can find it at specialty nurseries and through reputable online plant shops. Its popularity continues to grow due to its unique foliage.
How Fast Does Philodendron Mayoi Grow?
Under ideal conditions—warm temperatures, high humidity, bright indirect light, and regular feeding—philodendron mayoi has a moderate to fast growth rate. You can expect several new leaves per growing season. Growth will slow or stop during the shorter, cooler days of winter, which is normal for most tropical plants.
Is Philodendron Mayoi Toxic to Pets?
Yes, like all philodendrons, philodendron mayoi contains calcium oxalate crystals which are toxic to cats, dogs, and other pets if ingested. It can cause oral irritation, drooling, vomiting, and difficulty swallowing. It’s best to keep this plant out of reach of curious pets. Consider placing it on a high shelf or in a room they cannot access.
What Is the Difference Between Philodendron Mayoi and Selloum?
Philodendron mayoi and the plant commonly known as selloum (now classified as *Thaumatophyllum bipinnatifidum*) look similar but are different. Mayoi has narrower, more finger-like lobes that are divided almost to the central rib. Selloum has broader, more rounded lobes and a more tree-like, terrestrial growth habit. Mayoi also tends to have a more pronounced reddish tinge on its petioles.
Why Are the Leaves on My Mayoi Not Lobed?
Young philodendron mayoi plants often produce simpler, heart-shaped leaves. The characteristic deep lobes develop as the plant matures and receives adequate light. If a mature plant starts producing less-lobed leaves, it is usually a sign that it needs more bright, indirect light to express its full genetic potential. Providing a moss pole for support can also encourage larger, more divided leaves.