Hardy Hybrids

x weyeriana Boy Blue

 A blue form of B. x weyeriana which flowers from August through until October.

Originally rejected but back in cultivation now, I was lucky enough to get a plant a while back. I like it – big, big leaves in spring and really interesting pale blue flowers with a bright orange eye. Very vigorous but worth a go.



A interesting B. x weyeriana cross made in 2000 by Peter Moore.



  • Flower Colour: Lavender blue yellow throat
  • Habit: Compact
  • Eventual height: 150-200cm (5-6ft) Spread: 150-200cm (5-6ft)
  • Hardiness: Very hardy - 20°C USDA zones 5-9
  • Leaf colour: Medium green
  • Flowering: August - Oct 30-40cm (12-18”) in length
  • Fragrance: Fragrant
  • Situation: Prefers a sunny position
  • Wildlife: Good for bees

Project Details



Place of Origin

Central China, west China and Japan

Plant Heritage

Accession Number B186

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
  • Hybrid x weyeriana 'Boy Blue'
  • Category Hardy Hybrid
  • Colours and sizes are approximate and are intended as a guideline, cultivation notes should be followed

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Cultivation of Plants