Buddleja davidii 'Castle School'
'Castle School', Longstock Park, UK
Buddleja davidii 'Castle School' is a recent introduction, cloned from a seedling discovered growing in the wall of the eponymous Castle School in Tiverton, Devon, England, by nurseryman Martin Hugh-Jones and introduced to commerce in 2004,  by his nursery, Sampford Shrubs. 
'Castle School' has large pale-lilac panicles of highly fragrant flowers. The cultivar is also relatively early to flower, and said to resemble 'Lochinch' but with superior colour in both flower and foliage. 
'Castle School' is rare in cultivation, and is not known to have been introduced to North America or continental Europe. A specimen is grown as part of the NCCPG national collection held by Longstock Park Nursery  Hardiness: USDA zones 5–9.
- Stuart, D. D. (2006). Buddlejas. RHS Plant Guide. Timber Press, Oregon. ISBN 978-0-88192-688-0
- Moore, P. (2012) Buddleja davidii cultivars, 2011-2012, Longstock Park Nursery. longstock Park Nursery.
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