Spathiphyllum wallisii

RHS Plant Profile

Wallis peace lily

Other common names

peace lily, white sails

Herbaceous Perennial Conservatory Greenhouse

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An evergreen perennial with erect, lance-shaped, glossy dark green leaves, and ovate white flowering spathes to 15cm in length, each with a slender cream spadix within

Position

Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 5–10 years
Max Spread: 0.1-0.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Partial shade

Aspect: North–facing or South–facing or West–facing or East–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H1B

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Araceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Clump forming
Potentially harmful: Harmful if eatenskin/eye irritant. Wear gloves and other protective equipment when handling Pets: Harmful if eatenskin/eye irritant - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Spathiphyllum are evergreen rhizomatous perennials with lance-shaped leaves and tiny white flowers borne in a dense spike within an ovate, white, hood-like spathe
Name Status: Correct
Plant Range: Colombia C America

How to Grow

Cultivation

Under glass grow in partial shade. Flowering may suffer in deep shade. Use peat-free compost. During growth, water and mist freely; maintain a high humidity. Apply a balanced liquid fertiliser monthly. Pot on when root growth has overfilled the container. Suitable as a houseplant. May be grown outdoors in frost free conditions. See Spathiphyllum and houseplant cultivation for further advice

Propagation

Propagate by division in winter or immediately after flowering

Suggested planting locations and garden types

Patio and container plants
Sub-tropical
Low Maintenance

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free