This creeping philodendron produces heart-shaped leaves with striking white veining. The philodendron pastazanum is a rare and highly sought-after aroid that plant collectors adore. If you have been searching for a unique vining plant, this species from Ecuador might be your next favorite.
Unlike many philodendrons that climb, this one crawls along the forest floor. It sends out runners and produces large, glossy leaves that can grow impressively wide. Let’s break down everything you need to know about caring for this stunning plant.
Philodendron Pastazanum Overview
The Philodendron Pastazanum belongs to the Araceae family. It is often confused with the Philodendron gloriosum because both are crawlers with velvety leaves. However, the Pastazanum has a distinct look that sets it apart.
Here are the key features to remember:
- Growth habit: Terrestrial creeper, not a climber
- Leaf shape: Heart-shaped (cordate) and slightly pointed
- Leaf texture: Velvety, matte finish
- Veins: White to silver, very prominent
- Stems: Reddish or green, crawling along the soil surface
This plant is native to the Pastaza province in Ecuador. That is where it gets its name. It thrives in warm, humid environments under the canopy of large trees.
Philodendron Pastazanum Vs. Gloriosum
Many people mix these two up. They look similar at first glance, but there are easy ways to tell them apart.
Check the leaf base. The Pastazanum has a more pronounced sinus (the dip where the leaf meets the stem). The gloriosum has a more rounded, closed sinus. Also, the Pastazanum leaves are often a bit thinner and less velvety than the gloriosum.
Another difference is the stem color. Gloriosum stems are usually pinkish-white. Pastazanum stems are often green with a hint of red or brown.
Light Requirements For Growth
Getting light right is crucial for this plant. Too much sun will burn the leaves. Too little will make the growth leggy and the leaves smaller.
Aim for bright, indirect light. A north or east-facing window is perfect. If you only have south or west windows, use a sheer curtain to filter the harsh rays.
Signs you are getting the light wrong:
- Yellow leaves: Too much direct sun
- Dark, dull leaves: Not enough light
- Long gaps between leaves: Stretching for light
You can also use grow lights. If you do, run them for 10-12 hours a day. Keep them about 12 inches above the plant to prevent leaf burn.
Best Soil Mix For A Crawler
Because this plant crawls, it needs a wide pot, not a deep one. The soil mix must be airy and well-draining. The roots hate sitting in soggy soil.
A good aroid mix includes:
- 40% orchid bark
- 30% perlite
- 20% peat moss or coco coir
- 10% worm castings
This mix holds moisture but allows oxygen to reach the roots. It also prevents compaction, which is a common killer of philodendrons.
When you pot it, make sure the rhizome (the thick stem that crawls) sits on top of the soil. Do not bury it deep. Burying the rhizome can cause rot. Pin it down with a U-shaped wire if needed to keep it in contact with the soil surface.
Watering Your Philodendron Pastazanum
Watering is where most people struggle. This plant likes consistent moisture but not a swamp. The goal is to keep the soil evenly moist during the growing season.
Here is a simple watering schedule:
- Check the top 2 inches of soil with your finger.
- If it feels dry, water thoroughly.
- If it feels damp, wait another day or two.
- Water until it drains out the bottom holes.
- Empty the saucer after 15 minutes.
In winter, cut back on watering. The plant grows slower and needs less. Let the top 3 inches dry out between waterings.
Use room-temperature water. Cold water can shock the roots. Rainwater or distilled water is best if your tap water is hard.
Humidity And Temperature Needs
This is a tropical plant. It loves humidity. Aim for 60% or higher. If your home is dry, especially in winter, you need to boost the humidity.
Ways to increase humidity:
- Use a humidifier near the plant
- Place it on a pebble tray with water
- Group it with other plants
- Keep it in a terrarium or greenhouse cabinet
Brown, crispy edges on the leaves are a sign of low humidity. Misting helps a little, but it is not a long-term solution. A humidifier works much better.
Temperature-wise, keep it between 65°F and 80°F (18°C to 27°C). Avoid cold drafts and sudden temperature swings. Do not place it near an air conditioner vent or a heater.
Fertilizing For Healthy Leaves
Feed your plant during the active growing months. That is spring and summer. Use a balanced liquid fertilizer diluted to half strength.
You can use a 20-20-20 formula or a specialized aroid fertilizer. Apply it every 4-6 weeks. Do not fertilize in the fall or winter.
Signs of over-fertilizing:
- Brown spots on leaves
- White crust on the soil surface
- Wilting despite wet soil
If you see these signs, flush the soil. Run water through the pot for several minutes to wash out excess salts.
Propagation Methods
Propagating a crawler is different from a climber. You cannot just cut a node and stick it in water. The best way is through rhizome division.
Here is how to do it:
- Wait until the plant has at least 3-4 leaves on a runner.
- Carefully remove the plant from its pot.
- Locate a section of the rhizome with roots and a leaf.
- Cut it with a sterile knife.
- Plant the cutting in a small pot with the same aroid mix.
- Keep it in high humidity and bright, indirect light.
Do not water the cutting heavily for the first week. Let the roots settle. You can also use moss to root the cutting. Just keep the moss damp, not wet.
Propagation is slow. Expect to wait a few weeks for new growth. Patience is key here.
Common Pests And Problems
Like all houseplants, this philodendron can get pests. The most common ones are spider mites, mealybugs, and thrips.
Check the undersides of the leaves regularly. Spider mites leave tiny webbing. Mealybugs look like white cotton. Thrips cause silvery streaks on the leaves.
Treatment steps:
- Isolate the plant immediately
- Wipe leaves with a damp cloth
- Spray with insecticidal soap
- Repeat every 5-7 days for a month
Prevention is better than cure. Wipe the leaves monthly. Quarantine new plants for 2 weeks before adding them to your collection.
Yellow Leaves And Root Rot
Yellow leaves are the most common complaint. Usually, it is a watering issue. Overwatering leads to root rot. Root rot is fatal if not caught early.
If you see yellow leaves, check the roots. Healthy roots are white or cream. Rotten roots are brown, mushy, and smell bad.
If you find rot:
- Remove the plant from the pot.
- Cut away all rotten roots.
- Wash the healthy roots with hydrogen peroxide diluted in water.
- Repot in fresh, dry soil.
- Water sparingly for a few weeks.
Do not fertilize a recovering plant. Let it stabilize first.
Potting And Repotting Tips
This plant does not mind being root-bound. Repot only when the rhizome has reached the edge of the pot. This usually happens every 2 years.
Choose a wide, shallow pot. A pot that is 2-3 inches wider than the current one is ideal. Terracotta pots are good because they allow the soil to breathe. However, they dry out faster. Plastic pots retain moisture longer.
When repotting, handle the rhizome gently. It is fragile and can snap. Place the rhizome on top of the new soil and lightly press it down. Do not cover it completely.
After repotting, keep the plant in a shaded area for a week. This reduces stress. Then move it back to its regular spot.
Why Is My Plant Not Growing?
Slow growth is normal in winter. But if it is not growing in spring or summer, something is off.
Check these factors:
- Light: Is it getting enough bright, indirect light?
- Temperature: Is it too cold or too hot?
- Humidity: Is the air too dry?
- Nutrients: Has it been fertilized recently?
Also, check if the rhizome is buried too deep. If the growing point is under the soil, it cannot push out new leaves. Gently scrape away the top layer of soil to expose the rhizome.
Where To Buy A Philodendron Pastazanum
This plant is rare. It is not available at big-box stores. You need to look at specialized plant shops or online sellers.
Prices vary. A small cutting can cost $50 to $100. A mature plant with several leaves can cost $200 or more. Be careful of scams. Buy from reputable sellers with good reviews.
Look for signs of a healthy plant:
- No yellow or brown leaves
- Firm, plump stems
- No visible pests
- At least 2-3 leaves
Ask for photos of the actual plant before buying. Do not rely on stock photos. Also, check the shipping policy. This plant is sensitive to cold. Make sure it is shipped with heat packs in winter.
Final Care Checklist
Here is a quick summary to keep your plant thriving:
- Bright, indirect light only
- Well-draining aroid soil mix
- Water when top 2 inches are dry
- Humidity above 60%
- Temperatures between 65-80°F
- Fertilize monthly in spring and summer
- Keep rhizome on top of the soil
- Repot every 2 years in a wide pot
This plant is not for beginners. It requires attention to detail. But if you provide the right conditions, it rewards you with stunning, velvety leaves that become the centerpiece of any room.
Frequently Asked Questions
Is Philodendron Pastazanum A Climber Or A Crawler?
It is a crawler. It grows horizontally along the ground. Do not give it a moss pole. Instead, give it a wide pot to spread out.
Why Are The Leaves Of My Philodendron Pastazanum Curling?
Curling leaves usually mean underwatering or low humidity. Check the soil moisture. If it is dry, water the plant. Also, increase humidity around the plant.
Can I Grow This Plant In Water?
No. This plant does not do well in water long-term. It needs a well-draining soil mix. Water propagation for cuttings is possible, but transfer to soil as soon as roots appear.
How Fast Does Philodendron Pastazanum Grow?
It is a moderate grower. In ideal conditions, it can produce a new leaf every 4-6 weeks. Growth slows down significantly in winter.
Is This Plant Toxic To Pets?
Yes. Like all philodendrons, it contains calcium oxalate crystals. These are toxic to cats and dogs if ingested. Keep it out of reach of pets.
Growing a philodendron pastazanum is a rewarding experience. It is a slow, steady plant that teaches patience. With the right care, you will have a lush, creeping beauty that stands out in any plant collection. Just remember to keep the rhizome on top, water consistently, and provide that tropical humidity. Your efforts will be paid off with those gorgeous, white-veined leaves.