Why are the Leaves on my Philodendron Lickety Split Turning Yellow?

It’s a common moment of panic for plant lovers: You walk over to your Philodendron Lickety Split and notice that its beautiful green leaves have started to turn yellow. You might ask yourself, "What did I do wrong?" or "Is my plant dying?" Before you start worrying too much, let's take a closer look at what could be causing those yellow leaves.

This article will cover the most common reasons for yellowing leaves on your Philodendron Lickety Split and how to address each issue. From watering mishaps to lighting problems, nutrient deficiencies, and even pest invasions, we aim to help you get to the root of the problem and restore your plant to its lush, green glory.

Overwatering Issues

One of the most common reasons for yellowing leaves in Philodendrons—or any houseplant, really—is overwatering. While your plant does need water to thrive, too much can be harmful. Overwatering can lead to root rot, a condition where the roots become waterlogged and start to decay. If you notice your plant's leaves turning yellow and the soil feels constantly damp, overwatering might be the culprit.

To remedy this, first check the soil moisture. Stick your finger a couple of inches into the soil. If it feels wet, hold off on watering. Ensure that your pot has proper drainage holes, as stagnant water at the bottom of the pot can exacerbate root rot. You might even consider repotting the plant in fresh soil if the current mix seems waterlogged.

It's also a good idea to establish a watering schedule based on your plant's needs. Typically, watering once the top inch of soil feels dry works well for Philodendrons. Remember, it's better to underwater slightly than to overwater.

Underwatering Concerns

On the flip side, underwatering can also lead to yellow leaves, though it's usually less common with Philodendrons. If the leaves are turning yellow and crispy, and the soil feels bone dry, your plant might be thirsty.

To fix underwatering, start by giving your plant a good soak. Water it until you see water draining out of the bottom of the pot. This ensures that the roots get enough moisture. Going forward, make sure to water your plant consistently, allowing the soil to dry out slightly between waterings.

Creating a reminder on your phone or calendar can help you keep track of watering days, ensuring that your Philodendron stays hydrated without becoming soggy.

Too Much or Too Little Light

Lighting conditions play a huge role in the health of your Philodendron Lickety Split. These plants generally prefer bright, indirect light, but they can tolerate lower light conditions. However, too much direct sunlight can scorch the leaves, causing them to turn yellow and brown at the edges.

If your plant is in a spot that receives intense afternoon sun, consider moving it to a location with filtered light or using sheer curtains to diffuse the sunlight. Conversely, if your plant is in a dim corner and its leaves are yellowing, it might need a bit more light. Try moving it closer to a window, but avoid direct sunlight.

Lighting can be tricky, so you might need to experiment with different spots in your home to find the perfect balance. Remember, each home is unique in its lighting conditions, so what works for one plant parent might not work for another.

Nutrient Deficiencies

Nutrient deficiencies can also cause yellowing leaves, as your plant isn’t getting the essential nutrients it needs for healthy growth. A lack of nitrogen, for example, can lead to leaves that are pale or yellow. Similarly, deficiencies in other nutrients like magnesium or iron can cause yellowing or chlorosis.

To address nutrient deficiencies, consider using a balanced, water-soluble fertilizer. Philodendrons generally do well with a fertilizer that has equal parts nitrogen, phosphorus, and potassium (often labeled as 20-20-20). Follow the instructions on the package, usually feeding your plant every 4-6 weeks during the growing season (spring and summer).

Avoid over-fertilizing, as this can lead to salt buildup in the soil, which can harm the roots and exacerbate the yellowing. If you suspect salt buildup, flushing the soil with water can help remove excess salts.

Temperature Stress

Philodendrons are sensitive to temperature changes, and extreme temperatures can cause stress, leading to yellow leaves. These plants thrive in temperatures between 65°F and 80°F (18°C to 27°C) and can suffer if exposed to temperatures outside this range.

If your plant is near a drafty window, a heater, or an air conditioner, it might be experiencing temperature stress. Try to find a more stable environment for it. Sudden changes in temperature, like a cold draft, can shock the plant and cause leaves to turn yellow.

Maintaining a consistent temperature can be crucial for your plant's health. If your home has fluctuating temperatures, consider using a room thermometer to monitor the conditions around your plant.

Pests and Diseases

Pests like spider mites, aphids, and mealybugs can also cause leaves to yellow. These pests feed on the plant’s sap, weakening it over time. If you notice tiny spots on the leaves or a sticky residue, you might have a pest problem.

To combat pests, you can start by washing the leaves with a gentle soap solution. Neem oil is another effective treatment, acting as a natural pesticide. Make sure to treat both the tops and undersides of the leaves, as pests can hide in nooks and crannies.

Diseases like bacterial or fungal infections can also cause yellowing. These are often more challenging to deal with and may require removing affected leaves and applying a fungicide. Ensuring good air circulation around your plant can help prevent these diseases from taking hold.

Pot Size and Root Bound Issues

If your Philodendron is outgrowing its pot, it might become root-bound, leading to stress and yellowing leaves. A root-bound plant has roots that are tightly packed and circling the pot, leaving little room for growth.

To check if your plant is root-bound, gently remove it from its pot and inspect the roots. If they’re tightly wound around the outside of the soil, it's time for a bigger pot.

When repotting, choose a pot that is 1-2 inches larger in diameter than the current one. This gives the roots room to grow without overwhelming the plant with too much new soil. Fresh potting mix can also provide additional nutrients that your plant might be lacking.

Water Quality Concerns

Sometimes, the water you use can affect the health of your plant. Tap water often contains chlorine, fluoride, and other chemicals that can build up in the soil and lead to leaf yellowing.

If you suspect water quality might be an issue, try using distilled or rainwater to water your plant. Alternatively, you can let tap water sit out for 24 hours before using it, allowing some of the chemicals to evaporate.

By being mindful of the water you use, you can help ensure your Philodendron is getting the best care possible.

Natural Aging Process

Finally, it’s important to recognize that some yellowing is natural. As Philodendrons grow, older leaves will occasionally turn yellow and drop off. This is part of the plant’s normal life cycle and isn't necessarily a cause for concern.

If only the occasional lower leaf turns yellow and the rest of the plant looks healthy and vibrant, it’s probably just part of the plant's aging process. You can gently remove these leaves to keep your plant looking tidy.

In summary, while yellow leaves can indicate a problem, they’re not always a sign of disaster. By understanding the various factors that can cause yellowing, you can take steps to address the issue and keep your Philodendron Lickety Split thriving.

Final Thoughts

Yellowing leaves can be a sign that your Philodendron Lickety Split needs a little extra attention, whether it’s adjusting your watering routine, lighting conditions, or checking for pests. Remember, each plant is unique and might require a bit of trial and error to find the perfect care routine.

Here at Cafe Planta, we’re passionate about helping you grow beautiful, thriving plants in your home. If you have questions or need advice, feel free to email us or drop us a message on our Instagram. Let’s cultivate our love for plants together!