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How to care for Peace Lily (Spathiphyllum wallisii)

Quick facts

  • Water roughly every 7 days
  • Light: Bright, indirect light

Overview

The Peace Lily (Spathiphyllum wallisii) is a popular houseplant known for its elegant white spathes and glossy, dark green leaves. It's a relatively low-maintenance plant that thrives in indirect light and can help purify indoor air. Peace Lilies are a great choice for both beginners and experienced plant enthusiasts.

Watering

Water thoroughly when the top inch of soil feels dry, allowing excess water to drain away. Peace Lilies prefer consistently moist soil but will wilt dramatically when thirsty, serving as a clear indicator. Avoid overwatering, which can lead to root rot; allow the soil to dry slightly between waterings.

Light

Peace Lilies prefer bright, indirect light. Direct sunlight can scorch their leaves, while too little light can reduce flowering. Place them near an east or north-facing window, or a few feet away from a brighter window.

Soil & potting

Use a well-draining potting mix, such as a standard peat-based mix with added perlite or sand to improve drainage. A slightly acidic to neutral pH is ideal. Ensure the pot has drainage holes to prevent waterlogged soil and root issues.

Fertilizing

Feed your Peace Lily every 4-6 weeks during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Reduce or stop fertilizing in fall and winter when the plant's growth naturally slows down.

Seasonal care

During spring and summer, provide regular watering and feeding to encourage blooming. In fall and winter, reduce watering frequency and cease fertilizing as the plant enters a period of dormancy or slower growth. Maintain consistent temperatures and avoid drafts.

Common problems

Yellowing leaves can indicate overwatering or too much direct light. Brown leaf tips often result from dry air or inconsistent watering. If your plant isn't flowering, it may need more light or a change in fertilization. Pests like spider mites and aphids can be managed with insecticidal soap or neem oil.

Frequently asked questions

Why are my Peace Lily leaves turning yellow?
Yellowing leaves on a Peace Lily can be caused by several factors including overwatering, underwatering, too much direct sunlight, or a lack of nutrients. Assess your watering schedule and light exposure. If the soil is constantly wet, reduce watering. If it's dry, water more frequently. If leaves are scorched, move to a shadier spot. A balanced liquid fertilizer during the growing season can help if nutrient deficiency is suspected.
Why is my Peace Lily not flowering?
Peace Lilies need adequate bright, indirect light to produce their characteristic white spathes. If yours isn't flowering, it might be getting too little light. Ensure it's in a spot that receives filtered sunlight. They also benefit from consistent feeding during the growing season with a balanced fertilizer and proper hydration.
How often should I water my Peace Lily?
Peace Lilies prefer consistently moist soil but dislike being waterlogged. A good rule of thumb is to water when the top inch of soil feels dry to the touch. They are quite dramatic when thirsty and will droop their leaves, making it easy to tell when they need a drink. Allow excess water to drain completely to prevent root rot.
What kind of soil is best for a Peace Lily?
A well-draining potting mix is essential for Peace Lilies to prevent root rot. A standard houseplant mix amended with perlite or orchid bark works well. Ensure the pot has drainage holes. They prefer a slightly acidic to neutral pH.
Are Peace Lilies toxic to pets?
Yes, Peace Lilies are mildly toxic to cats and dogs due to the presence of calcium oxalate crystals. If ingested, they can cause oral irritation, drooling, vomiting, and difficulty swallowing. It's best to keep them out of reach of curious pets.

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