Garden flowers

Peruvian lily

AlstroemeriaAlstroemeriaceae
Also: Alstroemeria, Lily of the Incas
AT A GLANCE
Part shade Water: average H4down to −10 °C 45 cm–1 m tall · 45–60 cm wide In a pot: yes
Flowering · UK
Flowering · Northern Italy
Flowering · Central Italy
Flowering · Southern Italy and islands

Plant deeply and avoid disturbing the roots once settled — this genus dislikes being moved.

Care

Light

Standard border siting.

Water

Standard border watering.

Soil

Fertile, well-drained soil enriched with organic matter; resents disturbance once established, as it forms deep, brittle roots.

Pruning

Pull (don't cut) spent flowering stems from the base with a firm tug to encourage more flowering stems — a genus-specific technique. Cut back dying foliage in autumn.

Feeding

Feed fortnightly with a high-potash liquid feed while it is in flower — it produces stems for months and a fed plant flowers far longer. A mulch in autumn protects the tubers as well as feeding them.

Propagation

Divide in spring, with care: the brittle tubers snap easily and a damaged piece rots rather than grows. Take an outer section with roots intact rather than splitting the whole clump, and disturb it as little as possible.

Month by month

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

  1. AprilFeed as growth resumes. how ›
  2. JunePull out spent flowering stems from the base (don't cut) to encourage more flowers. how ›
  3. NovemberMulch thickly over the crown for winter protection. how ›

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

  1. AprilFeed as growth resumes. how ›
  2. JunePull out spent flowering stems from the base (don't cut) to encourage more flowers. how ›
  3. NovemberMulch thickly over the crown for winter protection. how ›

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

  1. MarchFeed as growth resumes. how ›
  2. MayPull out spent flowering stems from the base (don't cut) to encourage more flowers. how ›
  3. NovemberMulch thickly over the crown for winter protection. how ›

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

  1. MarchFeed as growth resumes. how ›
  2. MayPull out spent flowering stems from the base (don't cut) to encourage more flowers. how ›
  3. DecemberMulch thickly over the crown for winter protection. how ›

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

Common problems

Slugs

How to spot it. On young shoots.

What to do. Protect emerging growth.

Virus

How to spot it. Mottled, distorted leaves.

What to do. Remove and dispose of affected plants, no cure.

Winter cold damage

How to spot it. To the crown in a hard winter without mulch.

What to do. Mulch thickly.

Popular varieties

Alstroemeria ‘Indian Summer’AGM60–75 cm × 45–60 cm · June–SeptemberJune–SeptemberMay–SeptemberMay–September
Alstroemeria ‘Princess Lilies’30–40 cm × 30–40 cm · June–SeptemberJune–SeptemberMay–SeptemberMay–September

Questions

Peruvian lily: is it hardy?

H4: Hardy through an average UK winter. It survives down to −10 °C.

Can it grow in a pot?

Resents root disturbance, so choose a permanent pot rather than repotting often.

Peruvian lily: when do you prune it?

Pull (don't cut) spent flowering stems from the base with a firm tug to encourage more flowering stems — a genus-specific technique.

Peruvian lily: when does it flower?

In the climate of UK it flowers in June–September.

When do you feed it?

Feed fortnightly with a high-potash liquid feed while it is in flower — it produces stems for months and a fed plant flowers far longer. A mulch in autumn protects the tubers as well as feeding them. Feeding months, UK: May–July.