How to Save Your Dying Peace Lily Plant
Peace Lily (Spathiphyllum) is generally considered a low-maintenance houseplant. But even the hardiest of houseplants can occasionally show signs of stress, whether due to neglect, a sudden change in environment, or an unexpected pest problem. If your Peace Lily is struggling, don't worry, there’s often hope for recovery with attentive care. In this blog post, we'll walk you through how to bring a peace lily back to life.
Diagnosis
Before you can effectively address any issues with your Peace Lily, the first step is to identify the problem. Understanding the symptoms your plant is displaying will help you determine the underlying cause and guide you toward the best solution. The following are common symptoms and their causes:
Peace Lily Leaves Drooping or Wilting
- Overwatering or underwatering
- Excessive light
- Low Humidity
- Sudden Temperature Fluctuations
- Pest
Peace Lily Leaves Turning Yellow
- Overwatering or Underwatering
- Insufficient Light
- Low Humidity
- Nutrient Deficiency
- Extreme Temperature
Peace Lily Brown Tips
- Overwatering or Underwatering
- Low Humidity
- Excessive light
- Overfertilization
- Hard Water
Peace Lily Mushy Stems (Root Rot)
- Overwatering
- Poor Drainage
- Soil Compaction
How to Bring a Peace Lily Back to Life
Now that you know the reasons behind the various unhealthy states of your Peace Lily, pick up your Peace Lily, find the culprit. And take the following targeted measures to save your Peace Lily.
Water
Overwatered peace lilies can cause their roots to rot due to constant water saturation. If the plant is severely waterlogged, remove it from the pot, trim away any blackened, rotten roots, and replant it in fresh, well-draining soil. To prevent recurrence, allow the top 1-2 inches of soil to dry out before watering again.
Underwatering peace lilies leads to drooping and yellowing leaves. You need to remove dead leaves and rinse the plant thoroughly with room temperature water, ensuring both the leaves and soil are fully saturated. Place the plant in bright, indirect light afterward. If the soil no longer retains moisture, repot the plant with fresh potting mix. Going forward, water when the top 1-2 inches of soil are dry.
In addition to watering, poor water quality can affect peace lilies. Hard water can cause mineral buildup, blocking the roots from absorbing nutrients. To prevent this, use distilled or filtered water. If you notice white crust on the soil, flush the pot to remove excess minerals.
Light
Peace lilies do not thrive in strong, direct sunlight, as this can scorch their leaves. If you notice brown tips or sunspots on the leaves, move your peace lily to a location with softer, indirect light. An east-facing window that offers gentle morning sunlight is ideal. Alternatively, you can use sheer curtains to filter the sunlight.
Although peace lilies can tolerate low light conditions, they prefer bright, indirect light for optimal growth. Inadequate light can cause drooping leaves and stunted growth. Avoid placing your peace lily in dark corners. If natural light is limited, consider using artificial lighting. LED grow lights are energy-efficient and produce little heat, making them perfect for indoor planting.
Humidity
Peace lilies are tropical plants that thrive in high humidity, ideally between 40% and 60%. In winter, indoor humidity can drop, especially with heating or air conditioning. To help, you can place a pebble tray under the pot, adding water daily, or mist the leaves.
The most effective solution is a humidifier. The Mars Hydro Ultrasonic Cool Mist Humidifier automatically adjusts mist output to maintain the ideal humidity level. It operates quietly (under 35 decibels) and includes a low water alarm and automatic shut-off, making it a great option for indoor plant care.
Nutrient
Both insufficient and overfertilization can harm your peace lily. If you notice nutrient burn, immediately flush the soil with plenty of water to remove excess nutrients. If the burn is severe, it's best to remove the plant from its pot. Trim off any blackened roots, then replant the peace lily in fresh potting soil. Do not fertilize it temporarily.
The ideal fertilization frequency for peace lilies is every 6-8 weeks during the growing season (spring and summer) using a balanced, water-soluble fertilizer. Reduce or stop fertilizing in the fall and winter when the plant is dormant. Always dilute the fertilizer to about half the recommended strength to avoid over-fertilizing.
Pests
Peace lilies are susceptible to pests like spider mites, aphids, mealybugs, and scale insects. These pests feed on the plant’s sap, causing yellowing, drooping leaves, and stunted growth. If you notice signs of infestation, isolate the affected plant immediately to prevent spreading.
Then wipe the leaves with a damp cloth to remove visible pests or use a mild insecticidal soap. Alternatively, spray a neem oil solution (1-2 tbsp neem oil per quart of water) on both sides of the leaves. Repeat every 7-10 days until pests are gone. Regularly cleaning and inspecting the leaves helps prevent infestations.
Temperature
Peace lilies prefer temperatures between 65°F and 80°F (18°C to 27°C). If they are exposed to temperatures below 50°F (10°C), they can suffer from stunted growth or even leaf damage. Extremely high temperatures, above 85°F (29°C), can cause the plant to wilt, with yellowing leaves and curled edges.
If your peace lily shows signs of wilting, especially in hot weather or when there's a cold draft, adjusting the temperature will usually help. Keep the plant away from air conditioners, heaters, or cold windows. Sudden temperature changes can also stress plants, so it's best to avoid placing your peace lily near vents or heat sources.
