Narcissus 'Thalia' (5)

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daffodil 'Thalia'

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Synonyms

Narcissus triandrus 'Thalia'

Bulbs
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A Division 5 daffodil to 35cm in height, flowering in mid-spring, and producing two, milk-white flowers per stem. These are about 5cm across, with small cups and narrow, slightly twisted outer petals

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0-0.1 metre

Size

Time to Maturity
2–5 years
Max Spread
0-0.1 metre
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
West–facing or South–facing or East–facing
Exposure
Exposed or Sheltered
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 & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Amaryllidaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
Harmful if eatenskin irritant. Wear gloves and other protective equipment when handling. Pets (dogs, cats, tortoises): Harmful if eatenskin irritant. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus
Narcissus are bulbous herbaceous perennials with linear leaves and leafless stems bearing flowers, which may be solitary or in umbels, with 6 spreading perianth segments and a cup or trumpet-shaped corona
Name Status
Not established
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea

Triandrus daffodils are small, mostly less than 50cm tall, with up to 6 more or less nodding flowers per stem, each with a short cup and usually reflexed perianth segments

How to Grow

Cultivation

Plant at one and a half to two times its own depth in autumn. Will tolerate most soils but prefers moderately fertile, well-drained soil that is constantly moist during the growing season. See daffodil cultivation for further advice

Propagation

Propagate by removing offsets as the leaves fade in early summer

Suggested planting locations and garden types

  • Cottage and informal garden
  • Patio and container plants
  • City and courtyard gardens
  • Cut flowers
  • Flower borders and beds
  • Underplanting of roses and shrubs

Pruning

Deadhead as flowers fade and allow the leaves to die down naturally

Pests

May be susceptible to slugs, narcissus bulb fly, narcissus eelworm, and bulb scale mite

Diseases

May be susceptible to narcissus basal rot, narcissus leaf scorch or daffodil viruses