Buddleja davidi

Adonis Blue

This is a beautiful semi-deciduous shrub that is a medium grower and perfect for adding some vibrant colour to a border.  B. Adonis Blue has dark green foliage and produces large clusters of flowers in a unique shade of vibrant dark blue in the summer fading to a paler shade as autumn commences.


Buddleja ‘Adokeep’ (selling name ADONIS BLUE) is a cultivar raised by Elizabeth Keep in her garden after her retirement from East Malling Research Station in 1983. Elizabeth’s main objective was to breed shorter cultivars with a range of colours. B. Adonis Blue resulted from crossing a hybrid of B. fallowiana alba x B. davidii ‘Black Knight’ back to B. davidii ‘Black Knight’.

Elizabeth produced a series of cultivars which were all named after British butterflies.


  • Flower Colour: Vibrant blue
  • Habit: Arching branches
  • Eventual height: 100-200cm (4-6ft) Spread: 60-120cm (2-4ft)
  • Hardiness: Very hardy - 20°C USDA zones 5-9
  • Leaf colour: Dark green
  • Flowering: Very floriferous. The flowers are 25-30cm (9-12") in length
  • Fragrance: Sweetly scented and rich in nectar
  • Situation: Prefers a sunny position
  • Wildlife: Good for bees, butterflies and other insects. Deer and rabbit resistant.
  • Later in the year some close up images of the flowers and leaves will be added along with a botanical description.

Project Details



Place of Origin

Central China, west China and Japan

Plant Heritage

Accession Number B125

All details of our collection are held on the main Plant Heritage database including plant name, accession number, date of accession and plant source.

  • Genus Buddleja
  • Species davidii
  • Cultivar Adonis Blue Adokeep EU16240
  • Category semi - deciduous shrub
  • Propagation for resale is illegal without a licence from the agent