Peace Lily: How to Care for them?

Al Ardh Alkhadra > Blog > Gardening > Peace Lily: How to Care for them?

peace lily

If you are looking for a beautiful and stunning plant you can have a peace lily in your indoor settings.

Peace lily or Spathiphyllum is also popular as a closet plant.

Moreover, this plant is a popular choice for offices and homes. When it comes to indoor plants, peace lily plants are the easiest to care for.

However, though you may find them easy to care for, proper growing conditions are still crucial for them.

It is important to note that in some cases, a peace lily can be temperamental, but once you know how to care for them correctly, it will make a lovely addition to your home.

Keep on reading to learn more about peace lily.

Peace Lily

A peace lily is a tropical, evergreen plant that tends to thrive on the forest floor.

This is where they can receive dappled sunlight and consistent moisture along with the right level of humidity.

Moreover, by replicating these conditions in your home, you can make these plants happy and healthy.

With enough light, peace lilies will produce white to off-white flowers starting in the early summer.

peace lily 1

They will continue to bloom throughout the year in the right conditions.

Most household varieties of peace lily tend to grow about 16 inches tall.

However, when you place larger outdoor cultivators in your garden or backyard, they can have leaves that reach up to 6 feet in height.

It is important to note that this plant is not a cold-hardy plant, so you can only grow them outdoors in warm, humid climates,  USDA zones 10, 11.

Fast Facts about Peace Lily

Some fast facts about peace lily are:

Common Name Peace lily, Spath lily
Botanical Name Spathiphyllum spp.
Family Araceae
Plant Type Flowering tropical plant
Mature Size 1–3 ft. tall; up to 6 feet tall outdoors
Sun Exposure Partial shade
Soil Type Moist but well-drained
Soil pH Acidic
Bloom Time Spring
Flower Color White or yellow
Hardiness Zones 11–12, USA
Native Area Central America, Asia
Toxicity Toxic to dogs, toxic to cats, toxic to humans

Are they poisonous?

Yes, the peace lily is mildly toxic.

All parts of the peace lily contain calcium oxalate. It is a substance that can cause stomach and respiratory irrigation when you ingest it in large amounts.

Therefore, keep peace lilies out of reach of small children and pets who may chew on the plant.

While other common plants that contain calcium oxalate are:

  • daffodils
  • true lilies
  • hyacinths
  • philodendron

Planting Peace Lily

In order to plant peace lilies, you need to use well-draining, all-purpose potting soil.

Moreover, the soil should be able to hold moisture and dry out slowly over time, as they do not like to dry out entirely.

However, they also will not do well if you keep the soil constantly wet, as this fosters root rot fungus.

peace lily 2

You can move your plant outdoors in the summer month, but when the temperatures drop, it is a good idea to bring them back inside.

Furthermore, these plants are free of most of the plant diseases and pests that can plague these plants.

It is, however, important to note that they are susceptible to scale and mealybugs.

Spot treatment with horticulture oil is a good strategy for these plants.

Can you Grow them in Water?

Yes, you can grow peace lilies in water alone.

You can often find them in vases without soil.

In ideal cases, you will need to suspend the base of the plant above the water line, either by a specially made vase insert or a layer of small river stones.

This will allow the roots to grow down into the water.

However, make sure that it keeps the base of the plant.

And keep the leaves of the plant wet, which can cause rot.

Light and Water Requirments for Peace Lily

Ideally, you will need to keep peace lilies in a spot where they get bright, indirect sunlight.

An east-facing window is a perfect spot for them, as the plant will have exposure to the bright morning sun.

While a north-facing window is also a good choice for your plant.

Moreover, make sure to keep peace lily out of areas where they will get direct sunlight all day, like in a south-facing window.

This is because it may dry them out too much.

When it comes to watering your peace lily, consistency is the key.

Keep the soil lightly moist to the touch, but not overly saturated.

These plants can tolerate short periods of dry soil however, their leaves will start to develop brown tips if they do not have enough water or humidity.


Tip: One thing about peace lily is that they will tell you when they are thirsty.

The leaves of the plant will start to droop, and when the plant looks less ‘perky’ than usual, test the soil with your finger.

If it feels dry, it is time to water again.

Another important thing to keep in mind is that these plants are sensitive to chemicals that are commonly present in tap water like fluoride.

It can cause brown leaf tips.

Therefore, use filtered, room temperature water if possible.

Humidity, Fertilizing, and other Requirments

Peace lilies tend to enjoy high humidity, thus misting their leaves or placing them atop a moisture tray of gravel can help to increase humidity around the plant.

Moreover, these plants are not heavy feeders.

Thus, you will have to fertilize them occasionally.

To encourage spring and summer growth, fertilize them every 6 weeks or so with a well-balanced houseplant fertilizer in late winter.

Peace lilies are tropical plants, so make sure to keep them at a temperature above 60°F (16°C) and away from cold, drafty windows.

They will do best in temperatures above 70°F (21°C).

The large leaves of peace lily tend to collect a lot of dust in your home.

Therefore, gently wipe them down with a wet paper towel occasionally.

This is because a thick layer of dust can inhibit photosynthesis.

How to get Peace lilies to Flower?

In most cases, if the flowers are not appearing, your plant is not getting enough light.

Peace lilies are very tolerant of low light, however, “low light” does not mean no light!

To make sure your plant is flowering, move the plant to a brighter location, where it will receive bright, indirect light for at least a few hours every day.

Moreover, green flowers, weak-looking flowers, or a general lack of flowers can be due to improper fertilizing.

In the case of green flowers, cut back on fertilizing, as the plant may be getting too much nitrogen.

In case of weak-looking flowers or a lack of flowers, try to switch to a fertilizer that is especially for flowering plants.

This type of fertilizer has a higher amount of phosphorus which your plant needs for blooming.

Recommended Varieties

It is important to note that specialty varieties are not very easy to come by in most garden centers of a peace lily.

Though they have been growing in popularity.

You can have more success, however, when ordering them online.

Some of these are:

Spathiphyllum wallisii: This one is a smaller peace lily, that reaches only 12 inches tall.

Petite: This is a smaller one, growing approximately 8 to 10 inches.

Sensation: This one is the largest variety available, and is capable of growing up to 4 to 6 feet in height and width.

Domino: Is a medium-size variety with attractively variegated leaves.

Major Lime: This variety tends to have lime-green foliage, and is another medium-size lily.

Propagating Peace Lily

You can propagate peace lily by dividing clumps during repotting activities.

You can do this during any season. Inspect the plant for small offshoot crowns that may be present adjacent to the main mother plant.

This is a sign that your plant is ready to divide.


Follow the steps below:

  • remove the entire plant from its container
  • tug apart or cut away the adjacent down
  • or you can simply cut away a section of the main root ball
  • any piece that has two or more leaves and attached roots will likely grow successfully
  • fill a 6-inch pot with fresh potting soil that is moist but not soggy
  • immediately plant the clumps in the container and water thoroughly

It is important to keep your plant somewhere warm and well-lit.

The roots will reestablish themselves in less than a month.

Pest and Diseases

Some common pests and diseases are:

Brown Leaf Tips: These commonly occur due to excessive direct sunlight. over-fertilization, or lack of water, and/or humidity.

Keeping your plant on a tray of moistured gravel or misting the leaves can help to increase humidity.

Yellow Leaves: These can occur due to:

  • overwatering
  • underwatering
  • old off of the leaf

droopy leaves

Moreover, if the oldest leaves are yellowing and you have not repotted that plant in a while, it may just need more space to stretch its roots.

Scale and Mealybugs: These pests will happily take residence on your plant if you give them the opportunity.

A thorough wipe-down of the laves with dish soap and water solution can help.

Or you can use an insecticidal soap, which is effective at stopping them, though repeated applications may be necessary.

The Bottom Line

Though not difficult to care for, peace lily does not a bit of attention than average houseplants. Between frequent feeding, you need to make sure that they do not get too much or too little light, and water them just enough. They will appreciate a bit of attention.

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