• 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

Tulipa 'Prinses Irene' (3)

tulip 'Prinses Irene'

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
tulip 'Prinses Irene'

© � RHS 2002

  • Other common names tulip 'Prinses Irene'

  • Genus Tulipa are bulbous perennials with characteristic flowers, in a wide range of colours, in spring

  • Family Liliaceae / Liliaceae

  • Details 'Prinses Irene' grows to 35cm in height, with lance-shaped leaves and solitary bowl-shaped orange flowers, each tepal with a central purple flame

  • Horticultural Group Triumph Group tulips have single, cup-shaped flowers in a wide colour range, in mid and late spring

Characteristics

  • Foliage Deciduous

  • Habit Columnar/Upright

  • Toxicity All parts may cause severe discomfort following ingestion

  • 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 West-facing or East-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

    0-0.1 metre

  • Time to ultimate height

    1-2 years

How to grow

Cultivation Plant 10 to 15cm deep in fertile, well-drained soil. Protect from excessive wet and shelter from strong winds

Propagation Propagate by lifting and separating offsets

Suggested planting locations and garden types Flower borders and beds Cut Flowers Garden Edging City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants

How to care

Pruning Deadhead after flowering

Pests Can be damaged by slugs, aphids and stem and bulb eelworm; squirrels may eat the bulbs

Diseases May be subject to tulip fire and bulb rots

Advertise here

Did you find the information you were looking for?

RHS members can get exclusive individual advice from the RHS Gardening Advice team.

Join the RHS now