• AGM plants

    AGM plants have been through a rigourous 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

Kniphofia 'Nobilis'

Red-hot poker 'Nobilis'

AGM plants

AGM plants have been through a rigourous 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
Red-hot poker 'Nobilis'

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  • Other common names Red-hot poker 'Nobilis'

  • Synonyms Kniphofia alo�ides var. nobilis
    Kniphofia uvaria 'Nobilis'

    Kniphofia uvaria var. nobilis
    Kniphofia 'Prince Igor' misapplied

    see more
  • Genus Kniphofia may be evergreen or herbaceous perennials, with linear or strap-shaped leaves and erect stems bearing a dense raceme of tubular, usually pendent flowers

  • Family Asphodelaceae / Asphodelaceae

  • Species 'Nobilis' is a vigorous evergreen perennial to 1.5m or more, forming a large clump of narrow, arching leaves, with rich orange-red, tubular flowers in long spikes, fading to yellow towards the base

Characteristics

  • Foliage Evergreen

  • Habit Clump-forming

  • 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

    H6

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or East-facing

  • Exposure Exposed

Soil

  • Chalk

    Sand

  • Chalk

    Loam

  • MoistureMoist but well-drained

  • SoilSand, Loam

  • pHAcid, Neutral

Size

  • Ultimate height

    1-1.5 metres

  • Ultimate spread

    0.5-1 metres

  • Time to ultimate height

    2-5 years

How to grow

Cultivation Best grown in a sandy soil that has been enriched with humus but any deep, moist but well-drained soil will do. Full sun is best; can tolerate partial shade but flowering is reduced

Propagation Propagate by division of established clumps in late spring. Propagate by taking offshoots from the crown

Suggested planting locations and garden types Flower borders and beds City & Courtyard Gardens Cottage & Informal Garden Mediterranean Climate Plants

How to care

Pruning Old flower stems can be cut down after flowering

Pests May be attacked by thrips

Diseases May be subject to violet root rot

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