Callistemon rugulosus

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Synonyms

Callistemon laevis hort.

Shrubs
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An evergreen shrub to 4m, with pointed, lance-shaped leaves to 8cm long. In summer it produces 15cm long, red bottlebrush-like flowers with yellow-tipped stamens

Position

Full sun

Soil Types

Loam, Sand

Max Height

2.5-4 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity
10–20 years
Max Spread
1.5-2.5 metres
Max Height
2.5-4 metres

Growing Conditions

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

Position

Full sun
Aspect
East–facing or South–facing or West–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)
H3
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Myrtaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy
Genus
Callistemon are evergreen shrubs with aromatic, linear to lance-shaped leaves and bottlebrush-like spikes of flowers in which the long colourful stamens are prominent
Name Status
Correct
Plant Range
S & E Australia

How to Grow

Cultivation

Grow in moist but well-drained, neutral to acid soil in full sun; established plants are drought resistant. In colder areas grow under glass in peat-free, loam-based compost in full light with good ventilation. Pot on or top dress in early spring

Propagation

Propagate by seed sown in spring, or root semi-ripe cuttings in summer

Suggested planting locations and garden types

  • Coastal
  • Cottage and informal garden
  • Mediterranean climate plants
  • Low Maintenance
  • Banks and slopes
  • Conservatory and greenhouse
  • Flower borders and beds

Pruning

See pruning group 8; tolerates hard pruning and may require restrictive pruning when grown under glass

Pests

May be susceptible to scale insect, mealy bug and glasshouse red spider mite

Diseases

May be susceptible to honey fungus