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Pieris japonica 'Ralto'PBR
  • RHS Plants for pollinators

pieris 'Ralto'

'Ralto' is a spreading, compact, evergreen shrub to 1.5m tall, with irregular creamy white- to yellow-margined leaves, which emerge orange-flushed and mature to mid-green, and dark red flowers from spring, which fade to deep pink by midsummer

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Size
Ultimate height
1–1.5 metres
Time to ultimate height
10–20 years
Ultimate spread
0.5–1 metres
Growing conditions
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid
Colour & scent
StemFlowerFoliageFruit
Spring Red Cream Yellow Orange
Summer Pink
Autumn
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or East–facing or West–facing

Exposure
Sheltered
Hardiness
H5
Botanical details
Family
Ericaceae
Native to the UK
No
Foliage
Evergreen
Habit
Bushy
Potentially harmful
Harmful if eaten. Wear gloves and other protective equipment when handling. Pets (dogs, cats, rabbits, rodents, tortoises): Harmful if eaten - For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus

Pieris are compact evergreen shrubs with leathery, dark green leaves, often brightly coloured when young, and small white urn-shaped flowers borne in panicles in spring

Name status

Accepted

How to grow

Cultivation

Grows well in acidic, moderately fertile, humus-rich soil but may need some protection in winter when young

Propagation

Propagate by softwood cuttings in early summer or semi-hardwood cuttings in late summer. Some bottom heat may be required

Suggested planting locations and garden types
  • Cottage and informal garden
  • City and courtyard gardens
  • Patio and container plants
  • Wildlife gardens
  • Low Maintenance
  • Flower borders and beds
Pruning

Pruning group 8

Pests

May be susceptible to pieris lacebug

Diseases

May be susceptible to honey fungus (rarely), Phytophthora root rot, and fungal leaf spot

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