• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Libertia chilensis

© � RHS 2002

  • Synonyms Libertia grandiflora AGM

  • Genus Libertia are clump-forming perennials with grass-like, evergreen leaves and panicles of saucer-shaped white or blue flowers, followed by orange seed capsules

  • Family Iridaceae / Iridaceae

  • Details L. grandiflora is an evergreen perennial forming a large clump of erect, linear leaves, with clusters of white flowers borne on stiff stems in late spring and early summer, followed by conspicuous seed capsules


  • Foliage Evergreen

  • Habit Tufted



  • Full Sun

  • Aspect South-facing

  • Exposure Sheltered


  • Chalk


  • Chalk


  • Chalk


  • MoistureMoist but well-drained

  • SoilSand, Loam, Chalk

  • pHAcid, Alkaline, Neutral


  • Ultimate height

    0.5-1 metres

  • Ultimate spread

    0.5-1 metres

  • Time to ultimate height

    2-5 years

How to grow

Cultivation Grow in moderately fertile, humus-rich soil that is moist but well-drained. Needs a warm sunny position and a dry mulch for protection in winter

Propagation Propagate by seed in pots outdoors as soon as ripe or propagate by division in spring

Suggested planting locations and garden types Drought Resistant Flower borders and beds Cut Flowers Gravel Garden Prairie Planting

How to care

Pruning Remove flower stalks after flowering, tidy up in late winter

Pests Generally pest free

Diseases Generally disease free

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