• 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

Cuphea ignea

cigar plant

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
cigar plant

© � RHS 2002

  • Other common names cigar plant
    cigar flower

    firecracker plant
    Mexican cigar flower
    red-white-and-blue flower
    vegetable firecracker

    see more
  • Synonyms Cuphea platycentra

  • Genus Cuphea can be annuals, perennials or evergreen shrubs, often with sticky hairs, opposite, simple leaves and tubular flowers with a showy calyx and small petals

  • Family Lythraceae / Lythraceae

  • Details C. ignea is a spreading evergreen sub-shrub to 40cm in height, with lance-shaped leaves and tubular scarlet flowers, black at the tip and edged white

  • Plant range Mexico, Jamaica

Characteristics

  • Foliage Evergreen

  • Habit Spreading / Branched

  • 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)
    Old hardiness ratings

    While we update our systems with the new hardiness ratings you may still see old hardiness ratings in your search results. These are denoted as 'Old'.

    • H1 - Requires heated glass
    • H2 - Requires unheated glass
    • H3 - Hardy outside in some regions of the UK
    • H4 - Hardy throughout the UK
    • H1 + H3 - Requires heated glass but may be grown outside in summer

    For full details of the hardiness ratings see

    see more

    H1c

Colour

Sunlight

  • Full Sun

  • Partial Shade

  • Aspect South-facing or West-facing

  • Exposure Sheltered

Soil

  • Chalk

    Loam

  • Chalk

    Chalk

  • Chalk

    Sand

  • MoistureWell-drained

  • SoilLoam, Chalk, Sand

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height

    0.1-0.5 metres

  • Ultimate spread

    0.5-1 metres

  • Time to ultimate height

    5-10 years

How to grow

Cultivation Best grown in well-drained soil in a sheltered site in sun or partial shade but shade from hot sun. Alternatively grow in a pot under glass or as a houseplant

Propagation Propagate by seed

Suggested planting locations and garden types Flower borders and beds Wall-side Borders City & Courtyard Gardens Patio & Container Plants

How to care

Pruning Pruning group 10 in spring if needed

Pests Generally pest free

Diseases Generally disease free

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