Glumicalyx flanaganii

RHS Plant Profile
Flanagan's gooseneck flower

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Flanagan's gooseneck flower RHS
Herbaceous Perennial
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An evergreen perennial to about 60cm with small, toothed leaves and rather sprawling stems. Tight, terminal clusters of cream, tubular flowers with small, orange petal lobes are produced in summer

Position

Full sun

Soil Types

Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
0.5-1 metres

Growing Conditions

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

Position

Full sun
Aspect
West–facing or South–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)
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Scrophulariaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy
Genus
Glumicalyx are low-growing, aromatic evergreen perennial subshrubs with a height of up to 25cm. Upright stems produce clusters of white bell-shaped flowers, opening orange to red.
Name Status
Correct
Plant Range
S Africa, Lesotho

How to Grow

Cultivation

Needs a site in full sun that is free-draining but does not dry out,

Propagation

Propagate by seed, by softwood or semi-ripe cuttings, or by division

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Flower borders and beds

Pruning

Deadhead to prolong flowering

Pests

Generally pest-free

Diseases

Generally disease-free