Hardy Hybrids

Longstock Silver

B. ‘Longstock Silveris a very hardy deciduous small to medium shrub. The leaves are soft felted like B. crispa and the flowers are a fragrant lilac with a pale eye, also like B. crispa in cylindrical panicles from mid-summer until October.

A sterile hybrid that does not set seed.


B. alternifolia ‘Argentea’  x B. crispa made in 2000.  A Longstock introduction.




  • Flower Colour: Lilac with a pale eye
  • Habit: Bushy
  • Eventual height: 150-200cm (5-6ft) Spread: 150-200cm (5-6ft
  • Hardiness: -18°C
  • Leaf colour: Silverery green and aromatic
  • Flowering: August - October 10-15cm (4-6") in length
  • Fragrance: Fragrant
  • Situation: Prefers a sunny position
  • Wildlife: Moderate attraction

Project Details



Place of Origin

B. B. alternifolia ‘ Tibet & China   see hybrid species

B.crispa Afghanistan, Pakistan India & Nepal


Plant Heritage

Accession Number B192

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
  • Cultivar 'Longstock Silver'
  • Category Hardy Hybrid
  • 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