If you’re looking for a philodendron with bold, heart-shaped leaves that really catch the eye, Philodendron Pastazanum is a fantastic choice. At first glance, it looks a lot like other heart-leaf philodendrons. But the glossy texture and strong veins make it stand out as something special.
You probably won’t find this plant at just any garden center since it originally comes from Ecuador. It’s considered a rare variety.
The good news? Its care needs are almost the same as other philodendrons.
If you want to grow it indoors and keep it happy, just follow the simple steps below. I’ve covered everything you need to know.
You May Also Like: Grazielae philodendron care guide
About the Plant
In perfect conditions, Pastazanum can grow up to 4 to 6 feet long and spread 3 to 4 feet wide. But since it’s hard to fully copy its natural jungle home indoors, your plant will likely stay smaller in height—though it can still spread wide if it’s happy.
If you give it the right amount of light, water, and fertilizer, the leaves will stay large and glossy. Bright light also helps bring out those beautiful vein patterns that make the plant so attractive. You can use either a grow light or place it near a bright window.
Let’s go deeper into what it needs.
Light Needs
Light is one of the most important factors for growing a healthy Philodendron Pastazanum. Without enough light, it won’t produce the deep green color or glossy leaves you’re hoping for.
But direct sunlight is too harsh. The sun’s rays can burn the leaves, causing brown tips and crispy edges.
From my own experience, an east-facing window works best. It gives the plant plenty of soft, bright light for a few hours each day without scorching it.
You May Also Like: Syngonium Rayii grow guide
Potting Soil
This plant loves loose, airy soil. The best option is an aroid mix that includes peat, perlite, and pine or orchid bark.
This type of mix drains quickly but still holds just enough moisture to keep the roots hydrated.
Pastazanum roots are delicate, so avoid using regular potting soil. It’s too dense and can suffocate the roots.
If you know how to mix your own soil, that’s great—but honestly, it’s cheaper and easier to just buy a ready-made aroid mix.
Whatever you do, don’t use garden soil from outside. It’s not made for potted plants and won’t work well here.
Watering
Pastazanum likes soil that’s moist but not soggy. The best method is deep watering. Pour water slowly into the soil so it gets absorbed fully. Stop only when water runs out from the drainage holes.
Before watering again, check the soil by sticking your finger in it. If it feels dry, it’s time to water. If it still feels damp, wait another day or two and check again.
Use clean water. If your tap water is safe to drink and has no chlorine, you can use that. If it contains chlorine, let a bucket of water sit overnight. By morning, the chlorine will settle, and you can use the clear water on top.
Fertilizing
If your soil already has lots of organic material, you might not need fertilizer.
But if you want big, glossy leaves (like in the pictures), feeding the plant helps a lot.
Use a balanced liquid organic fertilizer. Dilute it in water and pour it evenly around the soil—don’t dump it directly on the stem.
Spring and summer are the best times to fertilize. Just remember to leave about 50 days between each feeding. That gives the plant time to absorb nutrients without overloading it.
Temperature & Humidity
This plant loves warm temperatures. Ideally, keep it between 65°F to 90°F.
If you live in USDA Zone 11, you can even grow it outdoors all year.
In cooler zones, bring it inside if temperatures drop below 55°F.
Humidity is also very important. Try to keep it above 65%. That can be tricky, but it’s doable. You can:
- Use a room humidifier
- Mist the leaves regularly (especially in summer)
- Place the plant in naturally humid spots like the kitchen or bathroom
Toxicity
Like many philodendrons, Pastazanum is toxic to both pets and humans. Its sap can cause stomach pain, sore throat, and vomiting if ingested.
If your child or pet chews on it, call your doctor or vet right away.
It’s always a good idea to wear garden gloves when handling this plant, especially when pruning or repotting.
Repotting
Repot it once in 3 years because it is a slow grower. Use terracotta pots because they are a bit heavy than plastic or ceramic ones.
Due to the large and heavy size of the plant you need to use a sturdy pot. Terracotta is the only option for this plant.
Moreover, these pots are made up of porous material which means the material has a tiny hole in it. This allows the air to circulate and keep the soil fresh.
This also keeps the plant roots free of diseases.
Propagation
The easiest way to propagate Pastazanum is through stem cuttings.
- Take a healthy stem about 5 to 6 inches long with a few leaves
- Remove the lower leaves
- Place the cutting in a glass of water and keep it in a warm, humid spot (out of direct sunlight)
- Change the water when it looks cloudy
You don’t need rooting hormone. In a few days, new roots will appear. Once they’re about 2 to 3 inches long, you can plant the cutting in soil.
Why is my Philodendron Pastazanum wilting?
If your plant looks droopy, it’s usually because of one of these problems:
- Too much light
- Low humidity
- Temperatures that are too cold or too hot
Fix these things and your plant will bounce back quickly.
Conclusion
Philodendron Pastazanum is a rare beauty, but it’s surprisingly easy to care for.
Just make sure you give it the right balance of light, water, and fertilizer.
Well-draining, airy soil is key. With the right care, your plant will reward you with big, glossy, heart-shaped leaves that’ll be the highlight of your indoor jungle.