Cordatum Philodendron Care

These plants generally like a moderate amount of soil moisture. Water whenever the top inch of soil has dried out. Both overwatering and underwatering can cause the leaves to droop, so gauge when it’s time to water by the soil dryness and not necessarily the leaves. Philodendrons don’t do well sitting in soggy soil, as this can lead to root rot. The non-climbing varieties tend to have a little more drought tolerance than the vining species.

Use a balanced liquid fertilizer monthly on your plant in the spring and summer. Then, reduce feeding to every six to eight weeks in the fall and winter. If your plant isn’t getting enough food, its growth will be slower than normal and its leaves might appear smaller than usual.

Philodendrons typically grow best in partial sunlight. They naturally would get dappled light under a tropical canopy, not direct sun. Indoors, set them up by a window that gets bright, indirect light. Too little light can result in leggy growth with lots of space in between the leaves. But too much light can cause many of the leaves to turn yellow at the same time. (Only a few leaves yellowing is typically just normal aging.)

Philodendrons like a loose potting soil that’s rich in organic matter. The soil must have good drainage. For container plants, it’s recommended to replace your philodendron’s soil every couple of years or so. These plants are sensitive to salts that accumulate in the soil via watering, which can cause leaf browning and yellowing.3 You can periodically flush out some of the salts by watering your container thoroughly until water comes out of its drainage holes. But eventually the soil will need refreshing.

The temperature tolerance of philodendrons varies based on the species. In general, they should not be exposed to temperatures below 55 degrees Fahrenheit. Indoors, protect them from cool drafts, such as those from an air-conditioning vent. These plants do like humidity, so if you live in a dry climate you might have to boost humidity around your philodendron. To do so, you can mist the plant every few days with water from a spray bottle. You also can place the container on a tray of pebbles filled with water, ensuring that the bottom of the container isn't touching the water, which can lead to root rot.

Initially, a philodendron should be planted in a container that is slightly larger than its root ball and has ample drainage holes. When the roots start poking up from the soil and out of the drainage holes of the pot, it’s time to repot the philodendron. The ideal time to do this is in the late spring or early summer.

Philodendron leaves and stems are high in calcium oxalate. This can be toxic to both people and animals when eaten.

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