• 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 kaufmanniana (12)

water lily tulip

water lily tulip

© RHS

  • Other common names water lily tulip
    waterlily tulip

  • Family Liliaceae

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

  • Horticultural Group Kaufmanniana Group tulips are small, often with purple-marked foliage, and have single, often bicoloured flowers in early spring

  • Details T. kaufmanniana is a dwarf bulbous perennial, up to 20cm tall, with broad glaucous leaves. Flowers vary in colour through creamy-white, yellow and red, with a yellow base, in early spring

  • Plant range C Asia

Characteristics

  • Foliage Deciduous

  • Habit Clump-forming

  • 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)

    H6

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or East-facing

  • Exposure Sheltered

Soil

  • Loam

    Loam

  • Sand

    Sand

  • Chalk

    Chalk

  • MoistureWell-drained

  • SoilLoam, Sand, Chalk

  • 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 with protection from excessive wet and shelter from strong winds; see tulip cultivation

Propagation Propagate by lifting and separating offsets;see bulb propagation

Suggested planting locations and garden types City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants Rock Garden

How to care

Pruning Deadhead after flowering

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

Diseases May be subject to tulip fire, tulip viruses and bulb rots

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