Anthurium vs Peace Lily: Which One Blooms Year-Round in a Living Room?

Anthurium and peace lily share more than most people realize. Both are aroids (family Araceae), both produce the same two-part flower structure — a modified leaf called a spathe surrounding a central spike called a spadix — and both are toxic to cats and dogs via the same calcium oxalate crystal mechanism. And yet they look completely different, bloom in completely different ways, and have meaningfully different care demands.

That divide starts with the spathe itself. On a peace lily, the spathe is white and papery, lasting a few weeks before gradually turning green as its tissue completes its life cycle. On an anthurium, the spathe is thick, waxy, and lacquered — capable of holding its saturated red, pink, coral, or white color for two to three months per bloom. Same structure, same plant family, dramatically different performance.

This comparison covers the differences that matter most for a buying decision: light, water, humidity, blooming behavior, toxicity, and which plant will actually thrive in your specific conditions.

Quick Comparison: Anthurium vs Peace Lily

The Flower: What You’re Actually Looking At

Both anthurium and peace lily produce what most people call “the flower” but is technically a spathe — a modified leaf that surrounds or cradles the spadix, the central spike where the tiny true flowers are clustered. The spathe’s job in the wild is to attract pollinators to the spadix, not to function as a petal. Understanding this structure explains why these two plants look so different despite being botanical cousins.

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On a peace lily (Spathiphyllum), the spathe emerges white and cupped, gradually unfurling to stand beside the cream-colored spadix. As the spathe ages, chloroplasts in its leaf tissue activate — the same biological process that makes all leaves green. The spathe is essentially reverting to its leaf function after its display role is complete, which is why every peace lily bloom eventually turns green before it dries and drops. This is normal and expected, not a sign of stress.

On an anthurium (Anthurium andraeanum), the spathe develops a thick, waxy cuticle that gives it the lacquered, almost plastic-looking texture the plant is known for. This wax layer locks in the red, pink, coral, or white pigments and prevents the chloroplast activation that would turn the spathe green. The result is a spathe that holds its color and gloss for 60–90 days per bloom — making anthurium one of the longest-blooming houseplants you can grow indoors.

The spadix also differs visibly. A peace lily’s spadix is cream to pale yellow and relatively slender. An anthurium’s spadix is typically cream, yellow, or pale purple and curves slightly upward from the spathe, giving the plant its distinctive flamingo-flower silhouette.

Size and Growth Habit

Anthurium andraeanum, the flamingo flower variety most commonly sold as a houseplant, typically grows 12–24 inches tall with a similar spread. Growth is measured — a few new leaves and a handful of blooms per season — but the plant is tidy and self-contained. The leaves are large, glossy, and broadly heart-shaped, making anthurium ornamental as a foliage plant even between bloom cycles.

Peace lilies range considerably more in size depending on the cultivar. Standard supermarket varieties top out around 1–2 feet tall; larger cultivars like ‘Mauna Loa’ and ‘Sensation’ can reach 4–6 feet and fill a significant floor space. If you are considering a peace lily as a statement plant for a large room, the cultivar matters — a standard peace lily in a 6-inch pot is a very different commitment from a Sensation in a 10-inch. See our Peace Lily vs Spathiphyllum Sensation comparison for the full rundown on size and care differences between standard and giant varieties.

Neither plant is a rapid grower, and neither is likely to outgrow a room within a few years of normal care.

Light Requirements

Light is the most important difference between these two plants in practical terms, and it directly controls whether anthurium will bloom for you.

Anthurium requires bright indirect light to produce flowers consistently. NC State Extension notes that insufficient light is the primary reason anthuriums fail to rebloom indoors [1]. In dim conditions, the plant will grow foliage indefinitely but produce few or no spathes. The ideal position is a few feet from an east- or south-facing window with a sheer curtain to filter direct sun. Morning sun from an east window is fine; sustained afternoon sun from a west or south window will bleach the spathes and scorch the leaf margins.

Peace lily is one of the most light-tolerant houseplants in common cultivation. It survives in low-light corners where most plants would struggle, and it is frequently recommended for offices and bathrooms with minimal natural light. That said, it blooms best in bright indirect light — as our houseplant light guide explains, there is a significant difference between surviving in low light and actually thriving. A peace lily in a dim room will stay green and occasionally bloom; an anthurium in the same space will grow leaves and nothing more.

Watering

Both plants want consistently moist (not wet) soil, but they respond to drought very differently — and that difference has practical implications for how you manage them day to day.

Anthurium is naturally epiphytic: in its rainforest habitat it grows on other plants rather than in ground soil, and its roots are adapted to short dry periods between rainfall events. University of Florida IFAS Extension recommends allowing the top 2–3 inches of soil to dry before watering [2]. Overwatering is the most common cause of anthurium decline; the roots rot quickly in chronically damp soil, and the plant gives little visible warning until the damage is already significant.

Not sure what to feed? anthurium cultivation warocqueanum breaks down the options.

Peace lily is more sensitive to drought and communicates it dramatically. When the soil dries out, the entire plant droops — leaves go flat, stems collapse, the plant looks genuinely alarming. Give it a thorough watering and it recovers within a few hours, usually upright again before the day is over. NC State Extension notes that peace lilies prefer consistently moist but not waterlogged soil [3]; the visible droop is the plant’s built-in signal system rather than a sign of serious stress.

The practical implication for beginners: peace lily tells you when it needs water; anthurium requires you to check the soil before watering rather than waiting for a visual cue. If you are prone to forgetting plants until they look distressed, peace lily is more forgiving. If you tend to overwater out of concern, anthurium’s preference for drying out slightly is actually an advantage.

Humidity and Temperature

Both plants are tropical and prefer warmth and humidity above typical US home levels, but anthurium is the more demanding of the two in both respects.

Anthurium performs best at 60–80% relative humidity. Below 50%, blooming slows and leaf tips may brown and curl. Temperature should stay in the 65–85°F range; cold drafts or exposure below 50°F causes black leaf tips and can damage the roots [2]. Keep it away from exterior doors, drafty windows, and air conditioning vents.

Peace lily is more accommodating. It handles 50–70% humidity comfortably and tolerates cooler nights down to 60°F without complaint [3]. In most US homes running central heating in winter (which can drop indoor humidity to 20–35%), both plants benefit from a humidifier or pebble tray, but anthurium will show the deficit more visibly through slower blooming and browning leaf edges.

Blooming: How to Keep Each Plant Flowering

Anthurium blooms more or less continuously when conditions are right. Each waxy spathe lasts 60–90 days, and a healthy plant typically has multiple blooms at different stages simultaneously. The main levers for consistent blooming are:

• Bright indirect light — non-negotiable; move it closer to a window before trying anything else
• High phosphorus fertilizer at quarter strength every 6–8 weeks during the growing season (spring through early fall)
• Humidity above 60% — a humidifier near the plant makes a noticeable difference
• Consistent temperature in the 65–85°F range

Peace lily blooms most actively in spring and fall, with individual spathes lasting 1–4 weeks before turning green. The most reliable bloom trigger is improved light — inadequate light is the primary reason peace lilies fail to flower indoors. Additional factors that encourage blooming:

• Slight root-binding — peace lilies often bloom more prolifically when a little pot-bound; avoid overpotting
• Balanced fertilizer at quarter strength every 6–8 weeks from spring through early fall
• Stable conditions — frequent relocation, cold drafts, or irregular watering disrupt bloom cycles

Once a spathe turns green on a peace lily, cut the entire stalk at its base with clean scissors — the same stalk will not produce another bloom, but the plant will generate new ones from other growth points. For anthurium, spent spathes turn brown and papery; remove them the same way. For the full peace lily blooming and care breakdown, see our complete peace lily care guide.

Toxicity and Pet Safety

Both plants are toxic to pets and children, and the mechanism is identical: insoluble calcium oxalate crystals throughout the leaves, stems, and roots. Ingestion causes immediate oral irritation — drooling, pawing at the mouth, difficulty swallowing, and occasional vomiting. The ASPCA lists anthurium (flamingo flower) as toxic to cats and dogs [4], and peace lily carries the same ASPCA toxic classification [5].

Neither plant is considered life-threatening under normal circumstances, but symptoms can be distressing and occasionally more serious in smaller animals. Place both out of reach of pets that chew on plants. If you need a pet-safe tropical alternative with similar lush foliage, our pet-safe houseplants guide covers non-toxic options that can fill the same visual role.

Which One Should You Choose?

Choose anthurium if:

• You have bright indirect light available — near an east or south window with a sheer curtain
• You want long-lasting, colorful blooms that stay vibrant for 2–3 months at a time
• You are comfortable checking soil moisture manually rather than waiting for a visible signal
• You want a compact, tidy plant with ornamental foliage between bloom cycles
• You want color variety — red, pink, coral, white, or purple depending on cultivar

Choose peace lily if:

• You have lower-light conditions — no good east or south window
• You want an easy, forgiving plant that signals clearly when it needs water
• You are new to houseplants and want something that tolerates minor neglect
• You want a larger statement plant (choose ‘Sensation’ or ‘Mauna Loa’)
• You prefer the classic white-on-green aesthetic over saturated color

Both plants are rewarding and long-lived when their core needs are met. The decision comes down to your light conditions and how much attention you are prepared to give to watering precision.

Frequently Asked Questions

Can anthurium and peace lily be kept in the same room?

Yes. Both prefer warm, humid conditions and indirect light, so their environmental requirements are compatible. Position anthurium closer to the light source for best blooming; peace lily can sit further back where the light is dimmer. A humidifier running nearby benefits both plants simultaneously.

Why does my peace lily flower turn green?

This is normal and unavoidable. The spathe is a modified leaf — as it ages, its chloroplasts activate and produce chlorophyll, gradually shifting the spathe from white to green. It is the plant completing the spathe’s lifecycle, not a sign of stress. Cut the stalk at the base once the spathe turns fully green; the plant will generate new spathes from other growth points.

Which flowers longer — anthurium or peace lily?

Anthurium, by a significant margin. Each anthurium spathe lasts 2–3 months due to its waxy, lacquered coating that preserves color and structure. Peace lily spathes last 1–4 weeks. However, peace lily blooms freely even in lower light where anthurium will not produce flowers at all.

Are anthurium and peace lily related?

Yes. Both are members of the Araceae family (aroids) and share the spathe-and-spadix flower structure. Anthurium (Anthurium andraeanum) is native to tropical rainforests of Colombia and Ecuador; peace lily (Spathiphyllum wallisii) is from tropical rainforest floors of Colombia and Venezuela. They are distinct genera but botanical cousins.

Which is better for beginners — anthurium or peace lily?

Peace lily is the better choice for beginners. It tolerates a wider range of light conditions, signals dramatically when it needs water, and rebounds readily from occasional neglect. Anthurium is not a difficult plant, but it requires consistent bright light and more attentive watering habits to produce the blooms it is known for. An anthurium in insufficient light will simply grow leaves and nothing else — which is a common source of frustration for new owners.

Why is my anthurium not blooming?

In the vast majority of cases, insufficient light. Anthurium will produce foliage in low or medium light but will not invest energy in bloom production without bright indirect light. Move the plant closer to an east or south window and give it 6–8 weeks — new spathes should begin developing within that window. If light is adequate, check humidity (should be above 60%) and fertilizer (a phosphorus-rich bloom booster helps during the growing season).

Sources

1. NC State Extension. Anthurium andraeanum. North Carolina Extension Gardener Plant Toolbox.
2. University of Florida IFAS Extension. Anthurium. Gardening Solutions.
3. NC State Extension. Spathiphyllum. North Carolina Extension Gardener Plant Toolbox.
4. ASPCA Animal Poison Control. Toxic and Non-Toxic Plants: Flamingo Flower (Anthurium). ASPCA.org.
5. ASPCA Animal Poison Control. Toxic and Non-Toxic Plants: Peace Lily (Spathiphyllum). ASPCA.org.