How do You Store Harvested Peace Lily for Winter?
Peace lilies are tropical plants that cannot survive frost. If you grew yours outdoors for the summer, you need to move it inside before nighttime temperatures drop below 55°F. The goal of winter storage is to keep the plant alive but resting, with less water, less light, and no fertilizer until spring.
When should I bring my peace lily indoors for winter?
Start watching the weather in early autumn. As soon as the forecast shows lows near 55°F, plan to bring your peace lily inside. Never wait until frost hits—cold damage turns leaves black and mushy within hours.
A good rule is to bring the plant indoors about two weeks before your area's first average frost date. This gives the plant time to adjust to lower indoor light before winter settles in.
If you have a garage or covered porch, you can stage the move. First, place the plant in a shady spot outdoors for a few days. Then bring it into a bright room indoors. This gradual shift reduces shock and leaf drop.
How do I prepare the peace lily for indoor storage?
Preparation steps are simple but important. Follow this checklist for a smooth transition:
| Step | What to Do | Why It Matters |
|---|---|---|
| 1 | Inspect for pests | Check under leaves and in soil for aphids, spider mites, or fungus gnats. |
| 2 | Wash the leaves | Use a damp cloth to remove dust and any hidden insects. |
| 3 | Trim damaged leaves | Cut off yellow, brown, or torn leaves at the base with clean pruners. |
| 4 | Check the pot size | If roots are crowded, you may need a slightly bigger pot or just refresh the topsoil. |
| 5 | Quarantine | Keep the plant away from other houseplants for two weeks to avoid spreading pests. |
Pro tip: Use a moisture meter to check soil dampness before watering after the move. Overwatering is the biggest mistake during winter storage.
What is the best pot and soil for overwintering a peace lily?
Peace lilies prefer to be slightly root-bound, so you do not need a huge pot. Choose a container with good drainage holes so excess water can escape. Terra cotta pots dry out faster than plastic, which might be helpful in winter when the plant uses less water.
For soil, use a light, well-draining potting mix that includes perlite or orchid bark. Heavy garden soil holds too much moisture and can lead to root rot during the resting season. If you need to repot, do it at least two weeks before bringing the plant indoors.
A good quality potting mix specifically for houseplants works well. Avoid adding extra compost or fertilizer now—the plant does not need it until spring.
Need a new pot? Look for a pot with a drainage tray to catch any runoff without making a mess on your floor.
How often should I water a peace lily in winter?
This is where most people go wrong. Peace lilies like consistent moisture in summer, but in winter they need much less. Water only when the top inch of soil feels dry to your finger. Insert your finger about one knuckle deep. If it feels damp, wait a few more days.
In many homes, this means watering every 10 to 14 days, sometimes even less. Overwatering causes yellow leaves, drooping, and root rot. Underwatering also causes drooping, but the leaves perk up quickly once you water.
A simple trick: lift the pot. If it feels light, it needs water. If it still feels heavy, wait. You can also stick a bamboo skewer into the soil—if it comes out clean, the soil is dry.
Never let the pot sit in standing water for more than 30 minutes. Empty the saucer after watering.
Where should I place the peace lily indoors for winter?
Peace lilies need bright, indirect light to survive winter without damage. A spot near an east- or north-facing window is ideal. Direct sunlight from a south or west window can scorch the leaves, causing brown patches.
If your home is dark in winter, consider a small grow light placed 12 to 18 inches above the plant. Use it for 8 to 10 hours a day to keep your peace lily happy.
Keep the plant away from cold drafts like windows that leak cold air, doors to the outside, or heating vents that blow hot, dry air. Temperature swings stress the plant and cause leaf edges to turn brown.
Peace lilies also love humidity. In dry winter air, the leaves may curl or get crispy tips. Place a tray of water near the plant (not under the pot) or use a small humidifier. Misting the leaves every few days helps too.
Can I store peace lily cuttings or divisions over winter?
Yes, you can store divisions or cuttings, but the method is a little different. If you divided your peace lily in early autumn, pot each division in its own container with fresh potting mix. Keep them in bright indirect light and water sparingly until spring.
For stem cuttings (which are rare for peace lilies because they grow from rhizomes), you can root them in water. Place the cutting in a jar with clean water, change the water weekly, and keep it in indirect light. Once roots are about an inch long, transfer to soil. But note: water-rooted cuttings are more prone to rot in winter, so soil propagation is safer.
Do not store bare-root rhizomes in a bag like you would with some bulbs. Peace lilies are not true bulbs. They need soil to survive winter storage.
Should I fertilize my peace lily during winter storage?
No, do not fertilize a peace lily during the winter months. Fertilizer pushes new growth, but the plant is not growing actively in low light and cooler indoor conditions. Extra nutrients can build up in the soil and burn the roots.
Wait until early spring—around March or April—when you see new leaves starting to emerge. Then start feeding with a balanced, water-soluble houseplant fertilizer at half strength every four to six weeks.
If you accidentally fertilized in winter, flush the soil by running water through the pot for several minutes. Let it drain completely and do not water again until the top inch is dry.
What signs show my peace lily is stressed during winter storage?
Your peace lily will tell you if it is unhappy. Look for these common signs and fix them quickly:
- Yellow leaves – usually too much water or poor drainage. Let the soil dry out more between waterings.
- Brown leaf tips – dry air, fluoride in tap water, or fertilizer burn. Use filtered water and increase humidity.
- Drooping stems – either too dry or too wet. Check soil moisture first; if dry, water. If wet, stop watering and check roots for rot.
- Black or mushy stems – root rot from overwatering. Remove damaged leaves, repot with fresh dry soil, and water very sparingly.
- Leggy growth with small leaves – not enough light. Move to a brighter spot or add a grow light.
If you correct the issue quickly, the plant should bounce back. Peace lilies are forgiving and usually recover unless root rot has progressed too far.
How do I transition the peace lily back outdoors in spring?
Once nighttime temperatures stay above 55°F, usually around late spring, you can begin moving your peace lily back outside. But do it slowly. Sudden changes in light and temperature can scorch the leaves and set the plant back.
Start by placing the pot in a shaded, sheltered spot outdoors for a few hours each day. Increase the time over a week or two. After about two weeks, move it to its summer location with bright indirect light. Resume regular watering and fertilizing once you see new growth.
This gradual hardening-off period helps the plant adjust without shock. Your peace lily will reward you with lush green leaves and maybe even a white flower spike by midsummer.
Need a good set of pruning shears for trimming leaves? Sharp, clean cuts help prevent disease and make your plant look tidy.