Peace Lily Plant Care Guide

Peace Lily — Noun
Spathiphyllum is a genus of over 40 species of monocotyledonous flowering plants in the Araceae family. Peace Lilies are native to the tropical regions of the Americas and southeastern Asia.

Pronounced: Pea — Ce Li — Lee

Genus: Spathiphyllum, a genus of over 40 recognized species in the Arum (Aroid/Araceae) family, characterized by thick, glossy oblong leaves and distinctive flowers consisting of a spadix surrounded by a spathe.

First Use: The first known use of the term 'Peace Lily' was in 1887.

Name Meaning: Peace Lilies' scientific name, Spathiphyllum, is borrowed from the Greek “spathi,” which means 'sword or spoon', and “phyllos,” which means 'blade', roughly translating to Sword Blade, referring to its characteristic sword-shaped blade.

Otherwise known as:

• White Sails

• Spathe Flower

Overview: Peace Lilies are a classic and well-loved houseplant for good reason — they're easy to care for, they do well in lower lighting conditions, and they frequently flower indoors. These stunning beginner-friendly plants deserve a place in every plant keeper's heart for their easy care and stunning good looks.

Spathiphyllum 'Wallisii'

Figures

Ultimate height
0.5–1.8 metres indoors

Ultimate spread
0.1–0.5 metres

Time to ultimate height
2–5 years

Peace Lily lifespan
15+ years. Some people report plants living up to 65 years old.

Peace Lily Plant Facts & Figures

In The Pot

Soil
Sand
Loam
Chalk

Moisture
Well–draining soil

pH
Acid, Alkaline, Neutral

Out Of The Pot

Windows
Partial shade. North, south or west facing window.

Exposure
Sheltered

Hardiness
Can be grown outside in the summer, tolerates lower temperatures than most houseplants, but Peace Lilies hate frosts.

Temperature Tolerance: 10 °C (50 °F) – 29 °C (84.2 °F)

Facts

Family
Arum family, Araceae.

Native to GB / Ireland
No — Native to Central and South America

Foliage & Habit
Evergreen. Clump Forming.

Safety
Poisonous, causes skin & eye irritation.

How To Safely Handle Poisonous Peace Lily Plants

Peace lilies are toxic, but generally cause milder symptoms compared to other Araceae. Ingestion can result in a burning sensation in the mouth and throat, difficulty swallowing, and swelling. Contact with the sap can lead to skin irritation and itching. Wear gloves when handling, wash your hands after touching sap. Pets, particularly cats and dogs, may experience drooling, vomiting, and difficulty swallowing if they chew on the leaves or stems. Educate family members so that they know not to touch them and what will happen if they do.

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

Peace Lily Lighting

Peace Lilies are a worldwide favourite due to their beautiful foliage and ease of care. Ensuring the right light conditions is crucial for maintaining a healthy Peace Lily. Here’s a comprehensive guide to help your peace lily flourish by providing the ideal lighting:

Peace Lily Lighting Needs

Peace lilies thrive in low to moderate light conditions, making them suitable for rooms without direct sunlight. They are particularly well-suited for offices and spaces with fewer windows. However, if you notice changes in their leaf colour or pattern, it may indicate inadequate lighting.+

Best Light Conditions for Peace Lilies

Indirect Light: Peace lilies prefer bright, indirect light. Position them near a north or east-facing window where they can receive plenty of natural light without being exposed to harsh, direct sunlight. Direct sunlight can scorch their leaves and cause discolouration. If you're unsure, place your plant about 1–2 feet away from the window and monitor for any signs of stress.

Peace Lily Low Light Tolerance: One of the reasons peace lilies are popular is their ability to tolerate low light conditions. While they may not grow as vigorously or produce as many flowers in lower light, they will still survive and enhance the beauty of your space.

Artificial Light For Peace Lilies: If natural light is limited, peace lilies can also thrive under fluorescent lighting or LED grow lights. This makes them ideal for office environments or rooms without windows. Ensure they receive about 12–14 hours of artificial light daily to replicate their natural growth conditions. If the leaves lose their colour or pattern, move your plant closer to the light source or increase the lighting. For a full guide on supplemental lighting, check our LED, fluorescent and grow light guide for indoor plants.

Signs of Improper Lighting for Peace Lilies

Peace Lily Has Yellowing Leaves: If the leaves of your Peace Lily start to yellow, it may be a sign of too much direct sunlight. Relocate the plant to an area with less intense light or adjust artificial lighting.

Peace Lily Has Leggy Growth: If the stems are stretching and the plant appears sparse, it might not be receiving enough light. Move the plant to a brighter spot or add additional lighting. This may also indicate the need for pruning. Refer to our Peace Lily plant safety guide before pruning, as the plant's sap can be irritating.

Peace Lily Has Faded Variegation: When Peace Lilies do not receive adequate light, their vibrant variegation can fade. Increasing light exposure can help restore their striking appearance. This occurs because the plant produces more chlorophyll to maximize photosynthesis, often turning the leaves greener.

Adjusting Peace Lily Lighting for Seasonal Changes

As seasons change, so does the intensity and duration of natural light. In winter months, when light levels are lower, you may need to move your Peace Lily closer to a light source. In summer, protect it from direct sunlight to avoid leaf burn.

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

How Often To Water Peace Lilies

Peace Lily Watering Tips

• Check the Soil: Always check the soil moisture before watering. Stick your finger about an inch into the soil; if it feels dry, it's time to water. A houseplant moisture meter can help you monitor soil moisture levels easily.

• Use Dechlorinated Water: Using a houseplant-safe dechlorinator ensures your water is free of harmful chemicals.

• Room Temperature Water: Use water that has reached room temperature to avoid shocking the plant's roots.

• Water Thoroughly: When watering, do so thoroughly until water drains out of the bottom of the pot. This ensures the entire root system is hydrated. Avoid leaving the plant sitting in excess water for more than 24 hours—check the saucer the day after watering and empty any remaining water.

• Avoid Overwatering: Let the soil dry out slightly between watering to prevent root rot. Peace lilies are more tolerant of under-watering than overwatering.

Signs of Watering Issues In Peace Lilies

• Peace Lily Has Yellowing Leaves: This can indicate overwatering or poor drainage. Make sure your pot has drainage holes and allow the soil to dry out between watering.

• Peace Lily Has Wilting or Drooping Leaves: These may suggest under-watering. Check soil moisture and adjust your watering schedule as needed.

• Peace Lily Has Brown Leaf Tips: This can result from low humidity or inconsistent watering. Increase humidity around the plant and ensure a consistent watering routine.

• Peace Lily Has Brown Mushy Roots: This could be a sign of root rot, which is usually caused by overwatering. Cut off the slimy roots and repot your Peace Lily in a well-draining chunky soil.

Lilies are one of those incredibly dramatic houseplants that will show you exactly when they want water! The picture here shows a completely wilted Peace Lily that has dried out and needs watering. If you see your Peace Lily plant has wilted, don't be afraid, it's quite normal for mature plants to do this when they're thirsty. After a good drink, they soon perk back upright and stop being so dramatic.

Peace lilies love to have consistent moisture, but they do not tolerate being waterlogged. They hate to have wet feet, so always make sure you empty the cache pot after watering. Ensuring the right moisture balance is crucial to prevent common issues with Peace Lilies, like root rot, and leaf yellowing, which can be the most common causes of death for these houseplants.

How Often to Water Peace Lilies

Spring and Summer: During the growing season, water your peace lily when the top 1 inch (2.54 cm) of soil feels dry. This generally means watering once a week, although it can vary based on your home's humidity and temperature.

Autumn and Winter: In the cooler months, peace lilies experience slower growth and need less frequent watering. Check the soil moisture every 10–14 days and water only when the top 2 inches (5.08 cm) of soil are dry.

Peace Lily Plant that has wilted due to underwatering.

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

Peace Lily Humidity

Peace Lilies thrive in environments with a humidity level of around 60-70%, mimicking their natural tropical habitat. Adequate humidity keeps their foliage lush and vibrant, and helps prevent common issues like brown leaf tips, which are a sign of dry air.

To ensure your Peace Lily receives the right humidity, consider using a hygrometer to measure your home's humidity levels. Regular monitoring and maintaining the appropriate humidity can help prevent issues and promote healthier growth.

Tips to Increase Peace Lily Humidity

• Misting: Lightly misting your Peace Lily with water can help increase the humidity around the plant. Use a spray bottle to mist the leaves, especially during dry months or in low-humidity regions. Misting should be done in the evening to prevent bacterial or fungal diseases from developing on the leaves.

• Humidity Trays or Bowls: Placing bowls of water near the Peace Lily can boost the humidity around the plant. Alternatively, create a humidity tray by placing a layer of pebbles in a shallow tray and filling it with water. Set the peace lily's pot on top of the pebbles, ensuring the pot is above the water line. As the water evaporates, it will increase the humidity around the plant.

• Humidifiers: Using an electric humidifier is an effective way to maintain consistent humidity levels. Place a humidifier near your peace lily to keep the air moist and comfortable. Be sure to monitor the humidity to ensure it doesn't get too high. A humidity meter can help with this if your humidifier doesn’t have a sensor.

• Grouping Plants: Placing multiple plants together can create a microclimate with higher humidity. The natural transpiration from the plants' leaves will help humidify the surrounding air.

• Avoid Drafts: Keep your Peace Lily away from drafts and direct air from heating or cooling vents, as these can dry out the air and reduce humidity levels around the plant, counteracting your efforts to maintain adequate humidity.

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

The Right Temperature For Peace Lily Plants

Peace Lilies thrive in warm indoor environments, so maintaining the right temperature is crucial for their long term health and growth speed. Here’s how to ensure your Peace Lily has the perfect temperature conditions:

Optimal Peace Lily Temperature Range

Peace Lilies prefer temperatures between 10 °C (50 °F) – 29 °C (84.2 °F). This range mimics their natural habitat and promotes robust growth and vibrant foliage.

Avoiding Temperature Extremes For Peace Lilies

Peace Lilies are sensitive to temperature fluctuations. Avoid exposing them to temperatures below 10 °C (50 °F), as this can cause damage to the plant and cause it to go into shock. Keep your Peace Lily away from heat sources like radiators or heaters, which can dry out the air and overheat the plant, causing wilting or drooping.

Monitor Your Peace Lily Temperatures

We always recommended using a 24-hour thermometer to monitor temperature levels. The built-in memory of these thermometers stores the average humidity and temperatures in your home over a 24-hour period, providing a comprehensive overview of your indoor environment. This enables you to adjust your Peace Lilies care needs as required.

Peace Lilies Need Stable Environments

Like most houseplants, consistency is key for Peace Lilies. Try to keep your plant's temperature as stable as possible, avoiding drafts from windows and doors, and sudden changes in temperature. Peace Lily care is easy when their basic needs are met.

Seasonal Adjustments For Peace Lilies

During colder months, ensure your Peace Lily isn't near drafts or cold windows. In the warmer months, provide adequate ventilation to prevent your Peace Lily from overheating, but avoid placing the plant in direct airflow from air conditioning units.

Signs of Temperature Stress In Peace Lilies

If your Peace Lily is exposed to temperatures outside its ideal range, you may notice signs of stress such as yellowing leaves, drooping, or slowed growth. Adjust the temperature conditions to help the plant produce new, healthier growth.

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

Repotting & Substrate — DIY Soil Mix For Peace Lilies

To ensure your Peace Lily thrives, providing the right type of soil is crucial. This can make the difference between a plant that merely survives and one that truly flourishes. We do not use or recommend peat due to environmental concerns, so our soil recipes are both eco-friendly and perfect for Peace Lilies!

The Best Soil Type for Peace Lilies

• Soil vs. Soilless Mix for Peace Lilies: It can be easier to maintain Peace Lilies in a soilless mix, as compost is often contaminated with pest eggs and unwanted guests. Coco coir is a great alternative, boasting antifungal properties that help prevent root rot and being completely inert, which means pests cannot survive in it.

• Commercial Soil & Choosing a Well-Draining Mix: When using pre-mixed commercial soil, Peace Lilies prefer well-draining soil to prevent root rot. Like many tropical plants, Peace Lilies thrive in a chunky, airy soil. In the wild, they grow in rich, well-aerated forest floors, which is what we aim to replicate at home. If you can't find a suitable pre-mixed soil, try our DIY soil mix recipes.

DIY Soil Mix Recipes for Peace Lilies

• Basic DIY Soil Mix Recipe: Combine 1 litre of coco coir, 1 litre of compost, 1 litre of perlite, and 1 litre of orchid bark. Scale up as needed to fill your pot.

• Advanced DIY Soil Mix Recipe: Our favourite mix includes 4 litres of coco coir, 4 litres of perlite, 4 litres of orchid bark, 2 litres of lecca balls, and 1 litre of worm castings. You can also add 1 litre each of pumice, activated charcoal, and unscented zeolite.

• Sourcing Soil Mix Ingredients: If you can't find these ingredients locally or if you are the online shopping type, you can buy the soil mix components online here: Small Coco Coir Pack — Bulk Coco Coir Pack, Orchid Bark, Pumice, Horticultural Sand, Horticultural Grit, Worm Castings, Perlite, Lecca Balls, Activated Charcoal, Zeolite

Peace Lily Essential Soil Properties

• Rich in Organic Matter: A soil mix rich in organic matter provides necessary nutrients for your Peace Lily. Adding worm castings to your potting mix offers a natural source of organic matter. Alternatively, add compost or use a plant food like Ionic Formulex weekly to supplement nutrients.

• Neutral pH: Aim for a soil pH between 6.0 and 6.5 for Peace Lilies. The ingredients in our soil recipes should give you a neutral pH. If buying pre-mixed soil, check the bag for the pH reading.

Preparing to Pot Up Your Peace Lily

1. Inspect the Root Ball: Check your Peace Lily's root ball. If there are no visible roots around the edge, it probably doesn't need repotting. Soggy and brown roots indicate root rot; trim the mushy roots and consider a smaller pot to prevent further damage.

2. Choose the Right Size Pot: Select a pot with drainage holes to prevent water from sitting at the bottom and causing root rot. Pick a pot no more than 1 inch (2.54 cm) larger than the current root ball.

3. Prepare the Soil Mix: Combine your DIY soil mix in a bucket or large container. If using commercial substrate, open your soil bag to prepare for potting.

Peace Lily Potting Process

1. Prepare the Pot: Place a small handful of soil at the bottom of the pot.

2. Prepare the Peace Lily Plant: Gently remove the Peace Lily from its current pot, being careful not to damage the root ball. Place the plant in the new pot on top of the small handful of soil.

3. Fill Around the Roots: Add more soil mix around the Peace Lily's roots, leaving at least 1 inch (2.54 cm) of free space at the top. Press the soil gently to eliminate air pockets, but avoid compacting it too much.

4. Water: Thoroughly water the Peace Lily, allowing excess water to drain out of the pot's holes. If your pot doesn't drain well enough, consider drilling extra holes. Let the water drain fully for 10 minutes before disposing of any excess water.

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

Fertilizer For Peace Lily Plants & How Often To Feed

Most houseplants need a bit of love now and then, and Peace Lilies are no different. Without the proper care and attention, your plant's growth may slow down, or even stop. For your Peace Lily, providing the right plant food is essential to keep it growing healthily with vibrant colours and healthy leaves. Think of plant food as a vitamin boost, supplementing their usual tap water diet. Here are some great options for fertilizing your Peace Lily:

Balanced Liquid Fertilizer For Peace Lilies

A balanced, water-soluble fertilizer with an equal ratio of nitrogen, phosphorus, and potassium, such as 20-20-20 or 10-10-10, is ideal for Peace Lilies. This offers a good mix of nutrients for overall plant health. The Houseplant Shop exclusively uses Formulex Fertilizer, as we have personally experienced great results using this fertilizer for both young and mature Peace Lilies.

Slow-Release Fertilizer For Peace Lilies

For a low-maintenance option, consider a slow-release granular fertilizer. Mix the granules into the soil mix, and they will gradually release nutrients, allowing the plant to take in a balanced diet.

Organic Fertilizer For Peace Lilies

Organic options like seaweed extract or worm castings are also effective for Peace Lilies. These fertilizers are gentler than liquid plant food additives, while still providing essential micronutrients and macronutrients that promote healthy growth.

Biofertilizers For Peace Lilies

A natural solution includes feeds containing microorganisms like seaweed. When added to the soil, they boost soil fertility and promote plant growth. At The Houseplant Shop, we use biofertilizers as stress reducers when repotting, moving, or pruning plants, though we don't solely rely on them as they don't contain a complete spectrum of nutrients for Peace Lilies.

Feeding Schedule For Peace Lilies

• Spring and Summer: Feed Peace Lilies every 4–6 weeks with a balanced, water-soluble fertilizer. This is their active growth season, so using fertilizer during these months will encourage a burst of new growth.

• Autumn and Winter: During colder months, Peace Lilies need less food. Cut back to every 8–10 weeks, dilute your feed by adding 50% less fertilizer concentrate, or even pause feeding completely to keep everything balanced.

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

How To Prune Peace Lilies

Pruning is an essential aspect of Peace Lily care that promotes healthy growth, prevents disease, and keeps your plant looking its best. Here’s a detailed guide on how to prune your Peace Lily effectively:

Why Prune a Peace Lily?

Pruning helps maintain the shape and size of your Peace Lily, encouraging it to grow more robustly. It also removes dead, yellowing, or damaged leaves, which can help prevent disease and pest infestations. Regular pruning keeps your Peace Lily looking lush and attractive.

When to Prune Peace Lily Plants

Prune your Peace Lily throughout the year as needed, but the best time for substantial pruning is during the spring and summer growing seasons. This is when the plant is most active and can recover quickly from pruning. If pruning in winter is unavoidable, ensure the plant is kept in a warm, well-lit area.

How To Manage Working With Poisonous Peace Lily Plants

Peace Lilies contain a poisonous sap that can be irritating if it comes into contact with the skin, causing redness and itching. Wash your hands thoroughly after handling the plant, and avoid touching your face.

How to Prune Your Peace Lily

1. Pruning Tools: Use clean, sharp pruning shears. Disinfect your shears before and after use with rubbing alcohol or a diluted bleach solution to prevent the spread of disease.

2. Identify Dead or Yellowing Leaves: Look for leaves that are yellowing, browning, or damaged. Remove these to keep the plant healthy and improve its appearance.

3. Cut Close to the Base: When removing a leaf, make the cut close to the base of the stem to avoid unsightly stubs. Clean your pruning shears between each cut to prevent the spread of disease.

4. Trim Leggy Growth: If your Peace Lily has become leggy with long stems and sparse leaves, trim back the stems to encourage bushier growth. Cut just above a node (where a leaf joins the stem) to promote new growth from that point.

5. Shape the Plant: Prune to maintain the desired shape and size of your Peace Lily. If it has grown too large for your space, selectively remove larger leaves or stems to keep it compact.

Peace Lily Pruning Aftercare

After pruning, provide your Peace Lily with optimal care to help it recover:

• Watering: Water thoroughly after pruning to encourage new growth.

• Lighting: Ensure your Peace Lily is in a spot with bright, indirect light.

• Feeding: Consider feeding with a balanced, water-soluble fertilizer to give it a boost after pruning.

Common Peace Lily Pruning Mistakes to Avoid

• Over-Pruning: Avoid cutting back more than one-third of the plant’s foliage at once. This can stress the plant and cause long-term stunted growth.

• Leaving Stubs: Make clean cuts close to the base to avoid long stubs.

• Neglecting to Disinfect Pruning Shears: Wipe blades between each cut to help prevent the spread of disease, bacteria, and fungus.

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

Propagating Peace Lilies

Propagating Peace Lilies is a little different from many other plants, as you can't take a leaf or node cutting. Peace Lilies are usually propagated via division or stem cuttings. These methods might seem a bit intimidating at first, but they’re reliable ways to propagate your Peace Lily with high success rates. At The Houseplant Shop, we prefer stem cuttings as our favourite method to reproduce Peace Lilies.

How To Manage Working With Poisonous Peace Lily Plants

Peace Lilies contain a poisonous sap that can be irritating if it comes into contact with the skin, causing redness and itching. Wash your hands thoroughly after handling the plant, and avoid touching your face.

Propagating Peace Lily Via Division

This is the easiest and most common method for propagating Peace Lilies. It involves dividing the plant's root clump to create new plants. Be careful not to snap stems, as this can cause the stem to die off.

How To Propagate Peace Lilies Via Division

1. Prepare Your Tools: Gather a clean, sharp knife or set of pruning shears, and a few small pots with some well-draining soil prepared.

2. Remove the Plant: Gently remove the Peace Lily from its pot. Be careful not to damage the roots as you remove it.

3. Divide the Plant: Look for natural divisions in the root clump. Using your knife or shears, carefully separate these sections, ensuring that each division has several leaves and a good root system.

4. Pot the Divisions: Plant each division in a small pot filled with well-draining soil. Water the newly potted plants thoroughly using dechlorinator to remove chlorine and chloramine. Evaporating chlorine no longer always works due to the addition of chloramine at some water treatment plants, so chemical removal is safest.

5. Care for the New Plants: Place the new pots in a location with bright, indirect light suitable for Peace Lilies. Keep the soil moist but not waterlogged until the plants are well-established.

Propagating Peace Lily Via Stem Cuttings

Stem cuttings can be used to propagate Peace Lilies, although this method requires more patience. The benefit is that the mother plant (the one you took the cutting from) grows back bushier and denser.

How To Propagate Peace Lilies Via Stem Cuttings

1. Prepare Your Tools: Gather a clean, sharp knife or set of pruning shears, and a few small pots with some well-draining soil prepared.

2. Select a Healthy Stem: Choose a healthy stem with at least two to three leaves.

3. Cut the Stem: Using a clean, sharp knife or pruners, cut the stem just below a node (the point where a leaf joins the stem).

4. Prepare the Cutting: Remove the lower leaves from the cutting, leaving at least one or two leaves at the top.

5. Optional Rooting Hormone: Dip the cut end of the stem in rooting hormone to encourage root development.

6. Plant the Cutting: Place the stem cutting in a pot filled with well-draining Peace Lily soil. Alternatively, you can place the cutting in water until roots develop, then transfer it to soil.

7. Provide the Right Conditions: Keep the cutting in bright, indirect light and maintain high humidity. Covering the pot with a clear plastic bag can help create a humid environment.

8. Watering: Keep the soil moist but not waterlogged. If rooting in water, change half of the water every week. Always use dechlorinator to remove chlorine and chloramine, evaporating no longer always works due to the addition of chloramine at some water treatment plants, so chemical removal is safest.

9. Transplanting: Once roots have developed, transplant the cutting to a larger pot with a well-draining soil mix.

Tips for Successful Peace Lily Propagation

• Clean Tools: Always use clean, sharp pruning tools to prevent disease and ensure clean cuts. Don't forget to clean your blades in-between each cut to prevent the spread of disease, bacteria, and fungus. Always clean your blades with disinfectant before and after use.

• Humidity: High humidity levels aid in the rooting process. Consider using a humidity tray or misting the cuttings regularly at night.

• Patience: Be patient and allow time for the roots to develop. Some cuttings may take longer to root than others, this is totally normal and nothing to worry about. If you want your cuttings to establish faster, leave more leaves on each cutting to aid quicker growth.

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

Peace Lily Pests & Problems

Even Peace Lilies with perfect environments and their exact care needs met can encounter a few issues. As plant keepers, we sometimes have to deal with unwanted guests and common houseplant problems. The key is enabling your Peace Lily to thrive despite these challenges. Here’s how to tackle pests and common issues that may affect your Peace Lily.

Peace Lily Common Pest Species

• Spider Mites: These pests can spin webs at the bottom of stems and leaves, sucking the life out of your plant until it dies. Spider Mites have a 2-4 week life cycle and can often be found by spotting fine webs in the lower parts of your plants.

• Aphids: These invaders are typically brought in from gardens or through windows and can be tricky to get rid of due to their 30-day life cycle. Eggs are laid within the plant's structure, making them hard to see. Continue treatment for several life cycles using a systemic pesticide for a 4-week treatment window.

• Mealy Bugs: These pests are one of the worst to find on your Peace Lily. They hide in leaf joints and look like tiny fluffy white bugs. Changing your Peace Lily’s substrate can help if you have a bad infestation. The life cycle is 4–7 weeks, requiring vigilance and regular treatment.

• Scale Insects: These hard-shelled pests can be difficult to manage. Gently scrape them off with a soft brush and spray the plant down with a DIY pesticide recipe.

Best Pesticides For Peace Lilies

1. Natural Leaf Wipe: Wipe leaves with undiluted pure neem oil to give them a gentle shine while deterring pests. This works well as a preventative measure.

2. Instant Death: Spot dab pests with a cotton swab dipped in rubbing alcohol to finish them off instantly. Pick off remaining pests and submerge them in alcohol.

3. Natural Homemade DIY Pesticide: An insecticidal soap-based approach is gentle on your Peace Lily. Mix 1 teaspoon of neem oil with 1/2 teaspoon of insecticidal soap and 1 litre of water. Apply with a spray bottle, ensuring the entire plant is covered. Re-apply every few days until pests are gone.

4. Natural Premixed Pesticide: Premixed neem and soap treatments like SB Plant Invigorator can be used. Follow the directions on the bottle and avoid reapplying too frequently as it could burn the leaves.

5. Chemical Pesticide: A systemic pesticide provides a 4-week treatment window. We recommend Acetamiprid concentrate. This pest treatment can cause distortion in new growth, which can be fixed by trimming the plant back to the last healthy point.

Common Problems: Diagnosing and Fixing Peace Lily Woes

• Peace Lily Has Yellowing Leaves: Yellow leaves are often caused by overwatering. If the soil is soggy, let it dry out and reduce watering frequency. Ensure your Peace Lily's pot has good drainage and use a moisture tester to help manage watering. Consider changing your soil to a well draining mix.

• Peace Lily Has Brown Leaf Tips: Browning leaves are typically caused by low humidity levels or under-watering. Monitor humidity levels and increase localized humidity as needed. Mist leaves cautiously, doing so at night, ensuring the leaves are fully dry before light exposure to prevent fungal and bacterial issues.

• Peace Lily Leggy Growth: If your Peace Lily looks too tall and sparse, it may need more light. Move it to a brighter spot or add supplemental LED lighting. Check our Peace Lily lighting guide for more information.

• Peace Lily Has Root Rot: Black and mushy roots indicate root rot from overwatering. Cut off the affected roots and repot the plant in fresh chunky soil which is well draining.

• Peace Lily Is Losing Leaves: Lilies dropping leaves could be a natural part of the ageing process. Plants shed lower leaves that don't get much light to concentrate that energy into newer leaves in better conditions. If the drop rate is excessive, check your plant care routine and environment. Overwatering or poor drainage could be the cause. Ensure a good feeding schedule to prevent nutrient deficiencies.

• How To Get a Peace Lily To Flower: To encourage your Peace Lily to bloom, ensure it receives bright, indirect light by placing it near a bright window with no direct sunlight. Maintain consistent soil moisture, watering when the top inch feels dry, and avoid letting the soil dry out completely. Peace Lilies thrive in high humidity, so mist the leaves regularly, use a humidity tray, or place a humidifier nearby. Keep the temperature between 18-27 °C (65-80 °F), avoiding cold drafts and heating vents. Feed your Peace Lily with a balanced, water-soluble fertilizer like 20-20-20 every 4–6 weeks during the growing season to provide essential nutrients for blooming. Regularly remove spent flowers and any yellowing or dead leaves to help the plant focus its energy on new growth. Lastly, avoid transplant shock around flowering season (spring and summer) and minimizing disturbances after repotting.

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

14 Peace Lily Varieties

Sensation Peace Lily
Spathiphyllum Sensation
Colour: Dark green leaves with white blooms
Unique Features: One of the largest varieties, can grow up to 4–6 ft tall
Origin: Hybrid, no native range

Piccolino Peace Lily
Spathiphyllum Piccolino
Colour: Shiny dark green leaves with pure white blooms
Unique Features: Compact and dwarf variety
Origin: Hybrid, no native range

Patricia Peace Lily
Spathiphyllum Patricia
Colour: Rich green leaves with white blooms
Unique Features: Compact with contrasting display
Origin: Hybrid, no native range

Sonia Peace Lily
Spathiphyllum Sonia
Colour: Small structure with charming white blooms
Unique Features: Small and charming
Origin: Hybrid, no native range

Little Angel Peace Lily
Spathiphyllum Little Angel
Colour: Deep green, glossy leaves with white blooms
Unique Features: Compact dwarf plant
Origin: Hybrid, no native range

White Stripe Peace Lily
Spathiphyllum White Stripe
Colour: Green leaves with white stripes
Unique Features: Beautiful matte finish
Origin: Hybrid, no native range

Domino Peace Lily
Spathiphyllum Domino
Colour: Ruffled green foliage with white streaks
Unique Features: Easy-going plant
Origin: Hybrid, no native range

Mauna Loa Supreme Peace Lily
Spathiphyllum Mauna Loa Supreme'
Colour: Tropical leaves with white blooms
Unique Features: Larger variety
Origin: Hybrid, no native range

Clevelandii Peace Lily
Spathiphyllum Clevelandii
Colour: Dark green leaves with white spathes
Unique Features: Striking white spathes
Origin: Hybrid, no native range

Diamond Peace Lily
Spathiphyllum Diamond Variegata'
Colour: Green leaves with white and silver variegation
Unique Features: Elegant variegation
Origin: Hybrid, no native range

Silver Cupido Peace Lily
Spathiphyllum Floribundum Silver Cupido
Colour: Green leaves with silver variegation
Unique Features: Touch of silver variegation
Origin: Hybrid, no native range

Allison Peace Lily
Spathiphyllum Allison
Colour: Medium-sized dark green leaves with white blooms
Unique Features: Hardy nature
Origin: Hybrid, no native range

Golden Peace Lily
Spathiphyllum Golden
Colour: Golden leaves with creamy white blooms
Unique Features: Rare indoor flowering plant
Origin: Hybrid, no native range

Domino Peace Lily
Spathiphyllum Domino
Colour: Marbled green leaves with white blooms
Unique Features: Beginner-friendly
Origin: Hybrid, no native range

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

10 Fun Facts About Peace Lilies

1. Peace Lilies Are Natural Dehumidifiers: Besides purifying the air, Peace Lilies can also help reduce indoor humidity levels.

2. The Victorian Era: Peace Lilies gained popularity in Europe during the Victorian era, when they were part of the famous flower craze in Victorian England

3. Blooming Beauties: The white “flowers” of Peace Lilies are actually modified leaves called spathes that surround the true flowers, which are tiny and clustered on the spadix.

4. The Tallest Peace Lily vs The Smallest Peace Lily: With indoor varieties such as Spathiphyllum 'Sensation' that can reach 6 ft (1.83 m), there are Peace Lilies to suit every sized indoor space. The smallest Peace Lily variety is the Power Petite Peace Lily (Spathiphyllum Petite). It typically grows to a height of 8–10 inches (20-25 cm), making it the perfect Peace Lily for smaller spaces.

5. Peace Lily Symbolism: In various cultures, Peace Lilies symbolize peace, prosperity, and purity, often used in religious and ceremonial contexts. In some cultures, Peace Lilies are used in funeral and memorial services as a symbol of the soul's return to the earth.

6. Pet Caution: While beautiful, Peace Lilies are a part of the Araceae family and are toxic to pets if ingested, causing irritation and other symptoms, so it's best to keep them out of reach of curious animals and children.

7. Peace Lily Medicinal Uses: In traditional medicine, parts of the Peace Lily plant have been used for their supposed healing properties, although this is not scientifically proven.

8. NASA-Approved: Peace Lilies were part of NASA's Clean Air Study, which identified them as one of the top houseplants for improving indoor air quality.

9. Peace Lily Discovery: The Peace Lily was first discovered by German plant collector Gustav Wallis in the late 19th century

10. Peace Lily Lifespan: With proper care, Peace Lilies can live for over 15 years, providing lasting beauty and elegance to your home. Some anecdotal evidence has shown that they can live for over 60 years!

Spathiphyllum 'Wallisii'

Spathiphyllum 'Wallisii'

Overview Of Peace Lilies

Peace Lilies are a unique houseplant for their unusual foliage and flowers, well-beloved worldwide for their beauty. Although Peace Lilies do not come in a variety of colours like some other Arum family plants, they do come with variegated patterns full of white patches.

One of the best features of Peace Lilies is their ability to survive in low-light environments. This makes Peace Lilies an excellent choice for adding plants to spaces that might not receive much natural sunlight, such as offices, bedrooms, or rooms with shaded windows.

With flowers that come back reliably every year in the right conditions, a Peace Lily is a magnificent choice if you're looking to add flowers to your indoor space. Check our common problems guide if you're having issues getting your Peace Lily to flower indoors.

Edited & Fact Checked By: The Houseplant Shop

Article Published: 25th November 2024

About The Houseplant Shop:

Independent Houseplant Nursery
Horticultural Specialists
Managing Over 250 Houseplant Species Onsite
Over 15 Years Of Experience With Horticulture

As head of horticulture, Sarah manages the care and propagation of over 250 plant species at a commercial houseplant nursery. With over 15 years of experience in horticulture, specializing in houseplants, Sarah has extensive expertise in plant biology, soil science, and integrated pest management. She continually reviews and integrates the latest research into her plant care guides. Dedicated to educating others, Sarah has spent years diagnosing houseplant care issues and sharing her real-world experience. Her commitment to scientific accuracy and helping people diagnose plant health issues has established her as a trusted authority and expert in the field.

The Houseplant Shop is a dedicated houseplant nursery, growing all of their own stock from their botanical library of over 250 houseplant species. The nursery staff are horticultural experts who have dedicated their lives to cultivating and nurturing over 250 different species of houseplants, focusing on Aroids, tropical plants, and NOID collectables. All their plants are grown in house in Britain to be more environmentally friendly. The nursery is proud to have been featured by the Royal Horticultural Society (RHS) as a 100% peat free nursery.

Recommended Further Reading:

People also looked at: Pruning Toxic Houseplants, and Care Guides by Houseplant Species.

How We Reviewed This Article:

Our horticultural experts continually monitor the houseplant space, and we update our articles when new information becomes available. We are committed to providing current and reliable information. If you have some information that you think would be helpful in this article, we'd love to hear from you. Our team works hard to revise articles for factual accuracy, and we regularly update our pages with new information, techniques, tips, images, trade secrets, and real world experience from the team here at the houseplant nursery. You can find a list of the article updates below.

Written By: Sarah Brooks, Head of Horticulture

Article Received: 22nd November 2024

Copyright: The Houseplant Shop (https://thehouseplant.shop)
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List of Article Updates:

20th December 2024: Minor UI updates

Author Bio:

Author: Sarah Brooks,
Head of Horticulture at The Houseplant Shop