Houseplants

Peace lily

SpathiphyllumAraceae
Also: Spathiphyllum
AT A GLANCE
Bright indirect light Water: lots H1babove 10 °C 40–70 cm tall · 40–60 cm wide In a pot: yes
Flowering · UK
Flowering · Northern Italy
Flowering · Central Italy
Flowering · Southern Italy and islands

Use the plant's dramatic drooping as your watering cue rather than a fixed schedule.

Care

Light

One of the best houseplants for a shadier spot, though it flowers more freely with brighter indirect light.

Water

Dislikes drying out fully, and famously droops dramatically when thirsty — a useful watering cue.

Soil

Peat-free, moisture-retentive but well-drained houseplant compost.

Pruning

Remove spent flower stems at the base and any yellowing leaves.

Feeding

A dilute balanced feed monthly in the growing season. Feed too strongly and the leaf tips brown; a plant that has stopped flowering usually needs more light rather than more fertiliser.

Propagation

Divide at repotting in spring: tip the plant out and pull the crowns apart with roots attached. Each piece re-establishes quickly if potted snugly rather than into an oversized pot.

Month by month

Months change with the climate: in southern Italy tomatoes go out two months earlier than in England.

  1. MarchRepot every 1-2 years — a fast grower that becomes rootbound quickly. how ›
  2. AprilMonthly liquid feed through the growing season. how ›
  3. JuneWipe leaves periodically to keep pores clear and discourage spider mite.

Months based on climate: UK. Your choice stays on this device.

  1. MarchRepot every 1-2 years — a fast grower that becomes rootbound quickly. how ›
  2. AprilMonthly liquid feed through the growing season. how ›
  3. JuneWipe leaves periodically to keep pores clear and discourage spider mite.

Months based on climate: Northern Italy. Your choice stays on this device.

  1. MarchRepot every 1-2 years — a fast grower that becomes rootbound quickly. how ›
  2. AprilMonthly liquid feed through the growing season. how ›
  3. JuneWipe leaves periodically to keep pores clear and discourage spider mite.

Months based on climate: Central Italy. Your choice stays on this device.

  1. MarchRepot every 1-2 years — a fast grower that becomes rootbound quickly. how ›
  2. AprilMonthly liquid feed through the growing season. how ›
  3. JuneWipe leaves periodically to keep pores clear and discourage spider mite.

Months based on climate: Southern Italy and islands. Your choice stays on this device.

Common problems

Drooping from underwatering

How to spot it. Dramatic wilting.

What to do. Water promptly — usually recovers within hours.

Brown leaf tips

How to spot it. From dry air or tap water chemicals.

What to do. Increase humidity, use rainwater.

Root rot

How to spot it. If left standing in water in a saucer.

What to do. Empty saucer after watering.

Questions

Peace lily: is it hardy?

H1b: Tender, needs above 10°C. It survives above 10 °C.

Can it grow in a pot?

Standard container culture.

Peace lily: when do you prune it?

Remove spent flower stems at the base and any yellowing leaves.

Peace lily: when does it flower?

In the climate of UK it flowers in March–August.

When do you feed it?

A dilute balanced feed monthly in the growing season. Feed too strongly and the leaf tips brown; a plant that has stopped flowering usually needs more light rather than more fertiliser. Feeding months, UK: April–September.