Buddleja davidii 'Ecolonia'

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<em>Buddleja</em> <em>davidii</em> 'Ecolonia' RHS
<em>Buddleja</em> <em>davidii</em> 'Ecolonia' RHS
Plants for pollinators
Shrubs

A deciduous, bushy shrub to around 1.5m high, with arching branches and lance-shaped green leaves with silvery undersides. Clusters of scented, pale lavender-blue flowers with yellow throats, up to 30cm long, are produced at the tips of the stems from summer into autumn

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Size

Time to Maturity
2–5 years

Growing Conditions

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

Position

Full sun 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)
H6

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
Unresolved

How to Grow

Cultivation

Thrives in a sunny, well-drained situation, though will tolerate partial shade. Protect from strong winds and excess winter wet. See buddleja cultivation for more detailed advice

Propagation

Propagate by semi-hardwood cuttings in summer, or by hardwood cuttings in autumn

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Wildlife gardens
  • Flower borders and beds
  • Wall side borders

Pruning

Pruning group 6; can be cut back to a low framework in early spring. Deadhead after flowering

Pests

May be susceptible to capsid bug, caterpillars, figwort weevil, mullein moth and red spider mite

Diseases

Generally disease-free