| 'Griffin Blue'|
| University of Georgia, USA.|
Buddleja davidii 'Griffin Blue' is a cultivar raised at the University of Georgia's experimental nursery at Griffin. 
Buddleja davidii 'Griffin Blue' Wikipedia
'Griffin Blue' is a compact variety growing to 2 m in height. The terminal panicles of rich blue flowers are 20–25 cm in length, complemented by grey-green leaves.
'Griffin Blue' is in cultivation on both sides of the Atlantic. In the UK, a specimen is grown as part of the NCCPG national collection held by Longstock Park Nursery near Stockbridge in Hampshire. Hardiness: USDA zones 5–9.