Species Hybrids & Cultivars Protection below -10°C

colvilei Kewensis

Buddleja colvilei ‘Kewensis’ is similar in all ways to the species except for its dark red flowers. Although perhaps marginally hardier than the species it is still best grown against a wall to protect from winter winds.



This cultivar is derived from the original plants which grew in the Temperate House at The Royal Botanic Gardens, Kew and  were introduced into cultivation in 1849.



  • Flower Colour: Red with a white throat
  • Habit: Shrub
  • Eventual height: 300cm (9ft)
  • Hardiness: Requires winter protection
  • Leaf colour: Green
  • Flowering: Early summer
  • Fragrance:
  • Situation: Protect from winter winds
  • Wildlife:

Project Details



Place of Origin

S Xizang and Yunnan Provinces in China plus Bhutan, India, Nepal and Sikkim.

Plant Heritage

Accession Number B206

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 colvilei
  • Cultivar 'Kewensis'
  • Category Semi tenderSpecies Shrub
  • Colours and sizes are approximate and are intended as a guideline, cultivation notes should be followed

Find out more about soil feeding, pruning and pest control.

Cultivation of Plants