• 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

Nigella damascena


  • Other common names love-in-a-mist
    bird's nest

    blue crown
    blue spiderflower
    devil in a bush
    devil in the bush
    garden fennel
    Jack in prison
    Jack in the green
    Katherine's flower
    lady in the bower
    St Catherine's flower

    see more
  • Family Ranunculaceae

  • Genus Nigella are upright, bushy annuals with finely dissected leaves and solitary flowers with 5 blue or white, petal-like sepals and feathery bracts, followed by ornamental seed pods

  • Details N. damascena is an upright, bushy annual to 50cm, withfeathery foliage. Pale blue flowers 4cm across areborne in summer followed by decorative, inflated seed capsules

  • Plant range S Europe N Africa


  • Foliage Deciduous

  • Habit Bushy

  • Hardiness

    Hardiness ratings

    All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

    • H1a - Under glass all year (>15C)
    • H1b - Can be grown outside in the summer (10 - 15)
    • H1c - Can be grown outside in the summer (5 - 10)
    • H2 - Tolerant of low temperatures, but not surviving being frozen (1 to 5)
    • H3 - Hardy in coastal and relatively mild parts of the UK (-5 to 1)
    • H4 - Hardy through most of the UK (-10 to -5)
    • H5 - Hardy in most places throughout the UK even in severe winters (-15 to -10)
    • H6 - Hardy in all of UK and northern Europe (-20 to -15)
    • H7 - Hardy in the severest European continental climates (< -20)




  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered


  • Chalk


  • Loam


  • Sand


  • MoistureWell-drained

  • SoilChalk, Loam, Sand

  • pHAlkaline, Neutral


  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 1-2 years

How to grow

Cultivation Grow in any well-drained soil in full sun

Propagation Propagate by seed sown in situ in mid-spring or autumn. Autumn-sown plants may need the winter protection of a cold frame or cloche

Suggested planting locations and garden types Flower borders and beds Coastal Patio & Container Plants City & Courtyard Gardens Cottage & Informal Garden

How to care

Pruning No pruning necessary

Pests Generally trouble free

Diseases Generally trouble free

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