Ipheion uniflorum 'Froyle Mill'

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spring starflower 'Froyle Mill'

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spring starflower 'Froyle Mill' RHS / Joanna Kossak
spring starflower 'Froyle Mill' RHS / Joanna Kossak
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A deciduous perennial bulb to 15cm in height, with narrow, strap-shaped pale green foliage. Upright stems of solitary, fragrant,dark violet-blue flowers appear in spring

Position

Full sun

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
Aspect
South–facing or East–facing
Exposure
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)
H5

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Amaryllidaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Tufted
Genus
Ipheion are small bulbous perennials with onion-scented, narrowly strap-shaped leaves and sweet-scented star-shaped flowers in late winter and spring
Name Status
Accepted

How to Grow

Cultivation

Plant 8cm deep in autumn in moderately fertile, humus-rich, well-drained soil that does not dry out. Provide protective winter mulch in colder areas

Propagation

Propagate by seed sown in containers in a cold frame when ripe or Divide in summer when dormant

Suggested planting locations and garden types

  • Coastal
  • Cottage and informal garden
  • Gravel garden
  • Rock garden
  • City and courtyard gardens
  • Mediterranean climate plants
  • Flower borders and beds
  • Garden edging

Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free