The Dracaena plant is a popular tropical houseplant known for being low-maintenance, yet its leaves may begin turning yellow for several different reasons. Continue reading to learn the main causes of yellowing Dracaena leaves and the best ways to treat each issue.
Soil Moisture
Excess soil moisture caused by overwatering is one of the most common reasons Dracaena leaves turn yellow. Dracaena prefers evenly moist soil—but not waterlogged or saturated. Maintaining a consistent watering schedule is essential for keeping this plant healthy.
When watering Dracaena, provide enough water so that the excess drains out of the pot’s drainage hole into the saucer. It is crucial to discard any standing water from the saucer immediately. Leaving the plant sitting in stagnant water will eventually lead to root rot, which can kill the plant. Yellow or brown leaves are often the first signs of root rot.
Water Quality
Water quality can also cause Dracaena leaves to turn yellow. This plant is sensitive to the chemicals commonly found in tap water. For this reason, it is recommended to water Dracaena using filtered or distilled water, or by letting tap water sit for 24 hours to allow chlorine to evaporate.
Additionally, using very cold water may shock the plant and lead to yellowing leaves. Always water Dracaena with room-temperature water. A heating pad can also help warm the roots if the soil is too cold.
Potting Soil
If the potting mix is too cold or holds excess moisture, Dracaena leaves may begin to yellow. To prevent this, always use a well-draining potting mix and ensure the pot has proper drainage holes.
Fertilizer Use
Over-fertilizing can cause Dracaena leaves to turn yellow because excess fertilizer can burn the roots. To avoid this, fertilize Dracaena every two months using half of the recommended fertilizer dose. Monitor the plant closely for signs of stress.
If you suspect fertilizer burn, remove the plant from its pot and inspect the roots. If the roots appear black or burned, trim away the damaged parts and reduce fertilizer use going forward.
Temperature Changes
Sudden temperature fluctuations are another common cause of brown or yellow Dracaena leaves. This plant thrives in warm temperatures between 21°C and 27°C at all times.
During spring and autumn, nighttime temperatures may drop significantly. In such cases, keep the plant away from drafts and close windows at night. In the summer, placing the plant near an open window can help provide the warmth and airflow it needs.
