Buddleja davidii

RHS Plant Profile
butterfly bush

Other common names

orange eye, summer lilac

Synonyms

Buddleja variabilis

Plants for pollinators
Shrubs

A large, fast-growing, deciduous shrub, to 3m tall, with long, arching shoots and lance-shaped, pointed, green or grey-green leaves up to 25cm long. From summer to autumn it bears dense sprays, 30cm or more long, of small, fragrant flowers in various shades of purple

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

2.5-4 metres

Max Spread

4-8 metres

Size

Time to Maturity
5–10 years
Max Spread
4-8 metres
Max Height
2.5-4 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

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

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

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
Correct
Plant Range
China

How to Grow

Cultivation

Grow in well-drained soil in full sun or partial shade. See buddleja cultivation for more detailed advice

Propagation

Propagate semi-ripe cuttings in summer or hardwood cuttings in autumn

Suggested planting locations and garden types

  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Gravel garden
  • Wildlife gardens
  • 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