• 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

Crocosmia 'Hot Spot' (Firestars Series)

  • Family Iridaceae

  • Genus Crocosmia are deciduous cormous perennials with erect, sword-shaped leaves and branched spikes of showy, funnel-shaped flowers in summer

  • Details

    'Hot Spot' is a cormous perennial to 75cm tall forming a clump of upright, sword-shaped leaves. Upward-facing yellow flowers with red stripes radiating from the base of each petal are borne on arching stems from midsummer into autumn


  • Foliage Deciduous

  • 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)




  • Full Sun

  • Partial Shade

  • Aspect South-facing or West-facing or East-facing

  • Exposure Sheltered or Exposed


  • Loam


  • Sand


  • Chalk


  • Clay


  • MoistureMoist but well-drained

  • SoilLoam, Sand, Chalk, Clay

  • 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 Plant 8-10cm deep in fertile, humus-rich, moist but well-drained and preferably sandy soil in full sun or partial shade; in colder areas plant somewhere with shelter from cold drying winds, such as near a wall, and protect in winter with a thick, dry, organic mulch. If clumps become congested, divide them in early spring

Propagation Propagate by division in early spring, just before growth starts

Suggested planting locations and garden types Flower borders and beds Cut Flowers Wall-side Borders Cottage & Informal Garden Prairie Planting Coastal Mediterranean Climate Plants

How to care

Pruning No pruning required, except removal of dead leaves and flower stems before new growth starts in spring

Pests May be affected by glasshouse red spider mite

Diseases Generally disease free

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