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A picture of a Peruvian Lily

Peruvian Lily

Alstroemeria ligtu

Also known as

St. Martin's-Flower

Alstroemeria ligtu by Diego Quintana Davis (CC BY-SA 4.0)

Full Sun
Moderate care
Light watering
Frost Hardy


RHS hardiness


Minimum temperature

Expected size






    • spring
    • summer
    • autumn
    • winter

    More images of Peruvian Lily

    A pink flower on a Alstroemeria Ligtu plant
    A close up of a Alstroemeria Ligtu flower
    An pink Alstroemeria Ligtu flower
    A photo of Peruvian Lily
    A photo of Peruvian Lily

    Peruvian Lily Overview

    Alstroemeria ligtu, commonly known as Inca lily, is a herbaceous perennial that form spreading clumps of erect stems of about 60 cm tall. In summer, they produce prolific umbels of beautiful funnel-shaped flowers - often spotted or streaked - that come in numerous colours. In the wild, Alstroemeria is often harvested for its edible roots. Inca lilies make for excellent, long-lasting cut flowers. Be careful when harvesting or handling this plant the foliage may exacerbate skin allergies. Inca lilies need well-draining soil and should not be left to sit in waterlogged soil as the fleshy tubers are prone to rotting. Inca lilies enjoy a position in full morning sun and some shade in the afternoon. During the growing season, feed your Alstroemerias with a high potash fertilizer once every week to encourage flowering. Stems that are done flowering can be removed by twisting it at the base of the plant, and flowers can be deadheaded to prevent seed formation. Also be sure to mulch well around the roots, especially in colder regions. Inca lilies are easy to propagate via division.

    Common problems with Peruvian Lily

    How to propagate Peruvian Lily


    Inca lilies can be easily propagated via division, usually done in spring or autumn. Start by cutting down your plant, and after about two weeks lift the tubers, along with its roots, and divide with a sharp, sterilized knife. Replant the tubers. Mulch and water well.


    Soak seeds for 12 hours and sow in seed trays with potting soil. Germination will be slow. Transplant seedlings after 4-6 weeks. Take care with brittle roots when transplanting seedlings.

    Special features of Peruvian Lily

    Attractive flowers

    Attracts useful insects

    Inca lilies attract bees, butterflies and other pollinators to the garden.

    Other uses of Peruvian Lily

    Cut flowers


    In the wild, this Alstroemeria is often harvested for its edible roots.