Alkanet Anchusa officinalis



A. officinalis is typically biennial (occasionally perennial), producing many spikes of attractive blue flowers from mid-summer to first frost

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      alkanet oxtongue

    • Common names

      Anchusa osmanica, Anchusa angustifolia

  • skullToxicity

    Bristles can cause skin irritation. Wear gloves and other protective equipment when handling

  • infoCharacteristics

    • Foliage type


    • Height

      0.5-1 metres

    • Spread

      0.5-1 metres

    • Hardiness zones


  • sunLight

    Full Sun

  • scissorsPruning

    Cut back old stems after flowering has finished

  • bambooSoil

    SoilChalk, Clay, Loam, Sand

  • pinSuitable locations

    • Hardiness zone

      Flower borders and beds

  • sproutPropogation

    • Propagate by seed in late winter or early spring at 13-16C (55-61F). Root basal cuttings in spring or root cuttings in winter

  • insectPests

    Generally trouble free

  • microbeDiseases

    Can be prone to powdery mildew