• 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

Bletilla striata

hyacinth orchid

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
  • Other common names hyacinth orchid
    common bletilla

  • Family Orchidaceae

  • Genus Bletilla are deciduous terrestrial perennial orchids with tuber-like pseudobulbs, ribbed, linear to lance-shaped leaves, and erect racemes of bell-shaped flowers

  • Details B. striata forms a clump of ribbed, sword-shaped leaves, with erect stems bearing several pink, orchid-shaped flowers to 5cm wide opening in spring and early summer

  • Plant range China to Japan

Characteristics

  • 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)

    H4

Colour

Sunlight

  • Partial Shade

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

  • Exposure Sheltered

Soil

  • Loam

    Loam

  • MoistureMoist but well-drained

  • SoilLoam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Under glass, grow in loamed-based potting compost (JI No.2) with added leaf mould, in bright filtered or bright indirect light. In summer water freely, applying a quarter strength balanced liquid fertiliser at every third watering. Keep dry in winter

Propagation Divide in early spring

Suggested planting locations and garden types Flower borders and beds Patio & Container Plants

How to care

Pruning No pruning required

Pests Glasshouse red spider mite, aphids, glasshouse whitefly and mealybugs may be troublesome

Diseases Generally disease free

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