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Buddleja Sugar Plum ('Lonplum'PBR)
  • RHS Plants for pollinators

butterfly bush [Sugar Plum]

A compact deciduous shrub to 1.5m tall, with arching branches of grey-green, lance-shaped leaves, whitish beneath, and long panicles of rich purple-red, scented flowers, produced through summer into autumn

Synonyms
Buddleja davidii 'Lonplum'PBR
Buddleja davidii 'Sugar Plum'

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
5–10 years
Ultimate spread
1–1.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green White
Summer Purple Green White
Autumn Purple Green White
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H6
Botanical details
Family
Scrophulariaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus

Buddleja can be evergreen or deciduous shrubs, occasionally trees or scrambling climbers with simple leaves and panicles of small, tubular fragrant flowers

Name status

Trade

How to grow

Cultivation

Will perform best when grown in a sunny, well-drained situation. See buddleja cultivation for more detailed advice

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types
  • Cottage and informal garden
  • Wildlife gardens
  • City and courtyard gardens
  • Gravel garden
  • Flower borders and beds
Pruning

Pruning group 6

Pests

May be susceptible to aphids, capsid bugs, caterpillars, earwigs, figwort weevils, glasshouse red spider mite, leaf and bud eelworm, and mullein moth

Diseases

May be susceptible to honey fungus, fungal leaf spot, and virus diseases

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