Lophomyrtus × ralphii 'Kathryn'

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A half-hardy, rounded, evergreen shrub to 2m tall, primarily grown for its foliage. The small, glossy oval leaves are flushed purple and blistered between the veins. In summer, mature plants produce open, cup-shaped white flowers with a prominent boss of stamens; these are followed by blackish-red berries

Position

Partial shade

Soil Types

Loam, Chalk, Clay, Sand

Max Height

1.5-2.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity
10–20 years
Max Spread
1-1.5 metres
Max Height
1.5-2.5 metres

Growing Conditions

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

Position

Partial shade
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

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
Lophomyrtus are evergreen shrubs or small trees with simple, leathery leaves, four-petaled flowers with prominent stamens and purple-black to red berries
Name Status
Accepted

How to Grow

Cultivation

Under glass, grow in peat-free, loam-based potting compost in bright, filtered light. During the growing season, water freely and apply a balanced liquid fertiliser monthly. Water sparingly in winter. Outdoors, grow in fertile, humus-rich, moist but well-drained soil in partial shade, with the protection of a warm wall

Propagation

Propagate by seed sown as soon as ripe. Root semi-ripe cuttings in summer with bottom heat

Suggested planting locations and garden types

  • City and courtyard gardens
  • Climber and wall shrubs
  • Conservatory and greenhouse
  • Wall side borders

Pruning

See pruning group 1; may require restrictive pruning under glass

Pests

May be susceptible to glasshouse red spider mite

Diseases

Generally disease-free