Spathiphyllum wallisii

Peace Lily

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Taxonomy

Common Names

Peace LilyWhite SailsSpathe Flower

Context

nativeRegion

Tropical rainforests of Central and northern South America (primarily Colombia and Venezuela).

usdaZones

Zones 11-12 (grown as a houseplant in cooler zones).

companionPlants

Philodendron, Aglaonema, Dieffenbachia, Ferns

culturalUses

Common houseplant for improving indoor air quality; used in ornamental horticulture for low-light interior spaces.

Care

LightPrefers bright, indirect light but tolerates low light conditions. Avoid direct sunlight, which can scorch the leaves.

WateringKeep the soil consistently moist but not soggy. Water when the top inch of soil feels dry. Avoid letting the plant sit in standing water.

SoilWell-draining, organically rich potting mix. A standard houseplant or tropical mix is suitable.

FertilizerFeed every 4-6 weeks during the growing season with a balanced, diluted liquid fertilizer. Fertilize less in fall and winter.

HumidityPrefers high humidity, but adapts well to typical indoor levels. Mist occasionally or use a humidity tray if air is very dry.

TemperatureThrives in temperatures between 18-27°C (65-80°F). Avoid drafts and sudden temperature drops.

HabitPerennial, clump-forming herbaceous plant with glossy leaves and distinctive white spathes.

Mature SizeAbout 30-60 cm tall (1-2 feet) and 30-45 cm wide (1-1.5 feet).

Growth RateModerate growth rate under ideal conditions.

BloomingProduces white spathes and flower spikes periodically, typically spring to fall, but can bloom year-round indoors.

DormancyNo true dormancy; growth may slow in lower light or cooler temperatures.

MethodsDivision, Seed (rarely used)

DifficultyEasy (by division); challenging and impractical from seed.

Best SeasonSpring or early summer for division.

PruningRemove spent flowers and yellowing leaves regularly with clean, sharp scissors.

RepottingRepot every 1-2 years or when rootbound, preferably in spring.

Pests & DiseasesMay attract spider mites, mealybugs, or aphids. Root rot possible with overwatering. Rarely affected by serious diseases.

ToxicityMildly toxic to pets and humans if ingested. Causes irritation or stomach upset.

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