• 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

Ipomoea indica

blue dawn flower

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 blue dawn flower

  • Synonyms Ipomoea learii
    Ipomoea acuminata

    Pharbitis learii
    Ipomoea learii

    see more
  • Family Convolvulaceae

  • Genus Ipomoea can be annuals or perennials, often twining, or evergreen shrubs, with simple, lobed or dissected leaves and tubular or funnel-shaped flowers which may be solitary or borne in racemes or panicles

  • Details I. indica is a vigorous twining evergreen perennial to 6m or more, with heart-shaped or 3-lobed leaves and wide-funnel-shaped blue or purple-blue flowers to 8cm across, opening over a long period from late spring to autumn

  • Plant range Pantropical

Characteristics

  • Foliage Evergreen

  • Habit Climbing

  • Toxicity Ingestion may cause severe discomfort. Wear gloves and wash hands after handling

  • 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)

    H1C

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or East-facing

  • Exposure Sheltered

Soil

  • Loam

    Loam

  • MoistureMoist but well-drained, Well-drained

  • SoilLoam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 4-8 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow under glass in a loam-based potting compost, in full light with shade from hot sun. Water freely when in growth and apply a balanced liquid fertilizer every two or three weeks. Water sparingly in winter. If grown in a container it can be put outside in summer

Propagation Propagate by seed sown singly at 18°C in spring. Chip or soak for 24 hours to aid germination. Take softwood cuttings in spring

Suggested planting locations and garden types Patio & Container Plants

How to care

Pruning Pruning group 11 in spring

Pests Glasshouse whitefly and glasshouse red spider mite may be a problem

Diseases Powdery mildews may be a problem under glass

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