Philodendron cordatum also known as cordatum philodendron, Heartleaf Philodendron , sweetheart vine is a rare and beautiful aroid species. While this plant is available from time to time, most of the specimens seen for sale are actually mislabeled heart leaf philodendrons. If you’re lucky enough to own a specimen of the true species, you can follow the tips in this guide to keep it happy and growing in your home.
What is a Philodendron Cordatum?
The confusion between P. cordatum and P. hederaceum lies in the word cordatum, which actually translates to ‘heart shaped’. If you’ve just bought a ‘cordatum’, start by getting an accurate identification of the plant and check out our article on the heart leaf philodendron (P. hederaceum) if you suspect this is what you have.
The true Philo cordatum is a climbing vine from the Araceae family. It is native to the Atlantic coastal zone of South-eastern Brazil in South America where it grows on and up other plants and sometimes over rocks. Philodendrons can grow over 20 feet tall because their aerial roots stick to tree bark.
It is a large-leaved species with a petiole up to 2 feet (0.6m) long. The heart shaped leaves can measure over 2 feet (0.6m) long and about 16 inches (40cm) across.
The leaves are deep green and glossy above, but matte below. The petiole and leaf midrib are often speckled with extra-floral nectaries.
Does Philo Cordatum Bloom?
The species produces greenish cream inflorescences that mature to pink or red. This plant is known to flower through the spring and summer months in its natural habitat. Flowering is pretty uncommon in indoor specimens, however.
Is Philo Cordatum Toxic?
This plant is toxic if eaten due to the presence of an irritant known as calcium oxalate (2). These crystals can also irritate the eyes and sensitive skin. Place the plant out of reach if you have pets or young children around to prevent any accidents.
How to Care for Philodendron Cordatum
This species is a climbing plant that will enjoy growing up a moss pole or some other structure as it does in nature. Relatively little has been written about care for this plant, but it is likely to thrive under the same conditions as other hemi-epiphytic philodendrons.
Sunlight
As with most other philodendron species, Philodendron cordatum craves bright, indirect sunlight like the dappled glow under a leafy canopy. East or west facing windows with sheer curtains or a spot a few feet away from a south-facing window.
Direct sun, especially midday blasts, can scorch the leaves, so avoid sunny sills. While these tropical plants can tolerate lower light, growth will be slower and leaves will be less vibrant, so aim for that sweet spot of bright, indirect light or partial shade for a thriving Philodendron cordatum.
Water
Philodendrons enjoy a moist growing medium, but overwatering should always be avoided. Aim to keep the soil evenly moist but never saturated. It is best to water this plant when its growing medium begins to feel dry to the touch.
Water the plant thoroughly and monitor the soil moisture daily to determine how often you will need to hydrate the plant. Bear in mind that the plant’s water usage will vary according to the time of year, growing conditions, and growth rate of the specimen.
Temperature and Humidity
This species is native to warm temperatures and humid climates, so replicating these conditions is likely to bring out the best in the plant. Fortunately, philodendrons are generally very adaptable to the relatively low humidity levels typical of most homes.
Best Growing/Potting Media
The best growing or potting media for Philodendron cordatum is a well-draining, lightweight mixture that retains moisture while allowing excess water to drain freely through drainage holes.
A combination of peat moss, perlite, and coarse sand or orchid bark creates an ideal environment for root growth and development. Adding a small amount of compost or aged manure can provide additional nutrients for the plant.
Ensure that the potting mix is loose and airy to promote aeration and prevent waterlogging, helping Philodendron cordatum thrive in indoor or outdoor settings.
Fertilizer
Apply a balanced liquid fertilizer once or twice a month during the growing season when the plant is in active growth. It is usually good practice to dilute the recommended concentration even further to stay on the safe side.
Unused fertilizer tends to build up around the roots of pot plants over time to where they can become toxic. Periodically flushing out the soil with a deep watering will remove the excess fertilizer.
Pruning
Be prepared for this plant to grow relatively large if provided with good care. It will not need much pruning apart from removing old, dying leaves on occasion. When the time comes, cut the petiole close to the stem with a sharp, sterile cutting tool.
Common Pests and Diseases
P. cordatum is likely to be resistant to pests like most of the other philodendrons. The nectaries on the leaves could potentially attract ants, but these will not harm the plant. Inspect your plant regularly for signs of common pests like aphids, spider mites, and mealybugs.
Providing your plant with a good watering schedule and appropriate lighting will go a long way toward preventing infestations and other potential issues like root rot and leaf scorch.
How to Propagate Philodendron Cordatum
This plant can be propagated from stem cuttings that include a node. These cuttings can be rooted in water, sphagnum moss, or soil, and then transplanted once healthy roots have grown.
FAQs
Is Philodendron Cordatum easy to grow?
Yes, Philodendron Cordatum is generally considered easy to grow, making it a popular choice for indoor plant enthusiasts. It tolerates a wide range of light conditions and is relatively low-maintenance.
Can Philodendron Cordatum live in water?
Yes, Philodendron cordatum can survive in water for extended periods, but it’s not ideal for long-term growth. While it can root and thrive in water temporarily, eventually, it will benefit from being planted in a well-draining potting mix to support healthier growth.
Can Philodendron Cordatum take direct sunlight?
Yes, Philodendron Cordatum prefers bright, indirect light but can tolerate some direct sunlight, especially if it’s filtered or diffused. However, prolonged exposure to intense sunlight may cause its leaves to burn or become scorched.
How often do I water Philodendron Cordatum?
Water Philodendron Cordatum when the top inch or so of the soil feels dry to the touch. Typically, this means watering every 1-2 weeks, but frequency may vary depending on factors like temperature, humidity, and light levels. Adjust watering accordingly to prevent overwatering or underwatering.
Final thoughts
In conclusion, proper care and attention are essential for the thriving growth of Philodendron cordatum.
By following these plant care guidelines, enthusiasts can enjoy the beauty and resilience of Philodendron cordatum as a cherished addition to their indoor green spaces.
Check our Philodendron care guide to learn more specific tips on caring for these indoor plants.
*A special thank to Scott Zona for letting us using the photo in this article!
References
Reference list
- Royal Botanic Gardens. Philodendron Cordatum
https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77073767-1
- Tulane University. Oxalate Plant Poisoning
https://tmedweb.tulane.edu/pharmwiki/doku.php/oxalate_plant_poisoning
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