| 'Dudley's Compact Lavender'|
Buddleja davidii 'Dudley's Compact Lavender' is an obscure American cultivar of unknown provenance, but which may have an association with the Farquhar Nursery of Dedham, Massachusetts, which raised the hybrid cultivar 'Eva Dudley' circa 1918. 'Dudley's Compact Lavender' featured in the Royal Horticultural Society's Buddleja Euro-trial at Wisley, but was unplaced in the public popularity poll. 
Buddleja davidii 'Dudley's Compact Lavender' Wikipedia
'Dudley's Compact Lavender' grows to a height of about 1.8 m, and bears pale lavender to lilac panicles.
Little is known about cultivation; the plant was introduced to the UK by the Longstock Park Nursery, NCCPG national collection holder, which received a specimen from the Bernheim Arboretum and Research Forest, Kentucky. Hardiness: USDA zones 5–9.