Viburnum opulus var. calvescens

RHS Plant Profile
smooth guelder rose
Plants for pollinators
Shrubs

A deciduous shrub, up to 5m high though usually smaller in cultivation, with thick, corky bark and maple-like, palmately lobed leaves which turn pink, orange or red in autumn. Flat clusters of small white flowers with purple anthers, surrounded by larger sterile flowers, are produced in late spring and early summer. These are followed by large, translucent red berries that persist into winter

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

4-8 metres

Max Spread

2.5-4 metres

Size

Time to Maturity
10–20 years
Max Spread
2.5-4 metres
Max Height
4-8 metres

Growing Conditions

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

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Viburnaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Potentially harmful
Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling. Pets: Fruit are ornamentalnot to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus
Viburnum can be deciduous or evergreen shrubs with opposite, simple or palmately lobed leaves and clusters of small, often fragrant white or pink flowers, followed by red, blue or black berries
Name Status
Correct

How to Grow

Cultivation

Grow in moderately fertile, humus-rich, moist but well-drained soil in sun or part shade. See viburnum cultivation for further advice

Propagation

Propagate by seed, sown in a cold frame in autumn, by softwood cuttings in summer

Suggested planting locations and garden types

  • Cottage and informal garden
  • Wildlife gardens
  • Coastal
  • Flower borders and beds
  • Hedging and screens

Pruning

Minimal pruning required, if necessary prune immediately after flowering, though this will prevent development of berries

Pests

May be susceptible to aphids and viburnum beetle

Diseases

May be susceptible to Phytophthora, honey fungus, grey moulds and leaf spot