What Do Peace Lilies Look Like? Key Features Revealed

By Emma Johnson · January 23, 2026

What Do Peace Lilies Look Like?

Peace lilies (Spathiphyllum) are elegant, low-maintenance houseplants known for their glossy, dark green leaves and distinctive white, spoon-shaped blooms that resemble a flag of peace. They typically grow 1–4 feet tall, with arching foliage and a tropical appearance, making them popular for indoor decor and air purification.

Key Features of Peace Lilies

Understanding what peace lilies look like involves recognizing their unique physical traits. These plants stand out due to a combination of foliage, flower structure, and growth habit.

Leaves

Shape: Oblong to lanceolate with a pointed tip
Color: Deep, glossy green on top; lighter green beneath
Size: Typically 6–12 inches long, up to 8 inches wide in larger varieties
Arrangement: Emerging from the base in a clustered, rosette pattern

Flowers (Spadix and Spathe)

The most recognizable feature of a peace lily is its bloom, which consists of two parts: the spathe and the spadix.

Spathe: A waxy, white or off-white hood-like bract that surrounds the spadix; often mistaken for a petal
Spadix: A finger-like central spike covered in tiny flowers; starts pale and turns greenish-yellow as it ages
Bloom Duration: Flowers can last 2–3 months under proper care

Growth Habit and Size

Peace lilies vary in size depending on the cultivar. Common indoor types stay compact, while outdoor or greenhouse varieties can grow much larger.

Variety	Average Height	Leaf Length	Flower Frequency	Common Use
Spathiphyllum wallisii	12–18 in	6–8 in	Spring–Summer, occasional fall	Indoor pots, offices
Spathiphyllum 'Mauna Loa'	24–36 in	8–12 in	Multiple times per year	Larger interiors, lobbies
Spathiphyllum 'Sensation'	4–6 ft	18–20 in	Seasonal blooming	Landscaping (tropical zones)
Spathiphyllum 'Domino'	15–20 in	6–9 in	Occasional with bright indirect light	Decorative tabletops

Table data source:1, 2

The table shows significant variation in size and flowering habits across common peace lily cultivars. Compact types like 'Domino' are ideal for small spaces, while 'Sensation' can serve as a dramatic floor plant in tropical gardens. Flower frequency correlates strongly with light exposure and consistent moisture.

Distinguishing Peace Lilies from Similar Plants

Peace lilies are often confused with calla lilies (Zantedeschia), but key differences exist:

Habitat: Peace lilies are tropical evergreens grown indoors; calla lilies are seasonal perennials often planted outdoors.
Flower Structure: Both have a spathe and spadix, but calla lily spathes are more funnel-shaped and come in colors like pink, yellow, or purple.
Leaves: Calla lily leaves are broader, arrow-shaped, and often spotted or textured.

Visual Cues for Healthy vs. Unhealthy Peace Lilies

Appearance can indicate plant health. Recognizing these signs helps maintain vitality.

Healthy Traits

Glossy, deep green leaves without spots or tears
Upright, firm stems and new leaf shoots
White, fresh-looking spathes emerging regularly
No drooping when soil is moist

Unhealthy Indicators

Yellow leaves: Overwatering or nutrient deficiency
Brown leaf tips: Low humidity or fluoride in water
Drooping despite wet soil: Root rot or poor drainage
No flowers: Insufficient light or lack of fertilization

Frequently Asked Questions About What Peace Lilies Look Like

Do peace lilies have white flowers?

Yes, peace lilies produce white, hood-like bracts called spathes that surround a central spadix. While not true petals, these spathes are commonly referred to as “flowers” and can last several months.

How big do peace lily leaves get?

Leaf size varies by variety. Standard indoor peace lilies have leaves 6–12 inches long, while larger cultivars like 'Sensation' can develop leaves over 18 inches in length under optimal conditions.

What color are peace lily flowers?

Peace lily blooms are typically pure white or creamy white when they first emerge. As they age, the spathe may turn green or develop greenish streaks before fading.

Are peace lilies green plants?

Yes, peace lilies are predominantly green due to their lush, glossy foliage. The contrast between the dark green leaves and bright white spathes enhances their ornamental appeal.

Can peace lilies change appearance over time?

Yes, peace lilies may grow larger and produce more blooms as they mature. Older plants often develop thicker stems and fuller foliage. Light levels and care practices significantly influence their visual development.