Buddleja sterniana

Buddleja sterniana was a species sunk as Buddleja crispa by Leeuwenberg in 1979,[1] and treated as such in the subsequent Flora of China.[2] however, the plant remains widely known by its former epithet in horticulture.

Buddleja sterniana
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Buddleja
Species:
B. sterniana
Binomial name
Buddleja sterniana
Synonyms

The shrub's origin is uncertain but, as it was originally collected by Forrest, may reasonably be assumed to be from Yunnan, China. Seed was distributed in the UK by Reginald Cory in 1922.[3]

Description

Buddleja sterniana is a deciduous multistemmed shrub often growing to > 3 m high, when it can become straggly unless pruned hard. The faintly-scented flowers are pale lavender, with an orange eye, and arranged in small (< 6  cm long) panicles, which appear before the leaves on the previous year's growth, during April in the UK. The leaves are much smaller than those of the type; the undersides are typically covered with a white tomentum.[3]

Cultivation

The shrub was originally grown at the Royal Botanic Garden Edinburgh, but by the Second World War only survived in the UK in the Chalk Garden of the eponymous Colonel Stern in Worthing, Sussex.[3][4] Softwood cuttings can easily be struck in June. The shrub now features in the NCCPG National Collection held by the Longstock Park Nursery, near Stockbridge, in Hampshire, England. All the specimens in commerce probably derive from Forrest seed collections.[5] Hardiness: USDA zones 8–9.[6]

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References
  1. Leeuwenberg, A. J. M. (1979) The Loganiaceae of Africa XVIII Buddleja L. II, Revision of the African & Asiatic species. H. Veenman & Zonen, Wageningen, Nederland.
  2. Li, P. T. & Leeuwenberg, A. J. M. (1996). Loganiaceae, in Wu, Z. & Raven, P. (eds) Flora of China, Vol. 15. Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. ISBN 978-0915279371 online at www.efloras.org
  3. Cotton, A. D. (1947). The spring-flowering buddleias (sic). R H S Journal, Vol 72 1947 pp 428-430.
  4. Stern, F. C. (1960). A chalk garden. Faber & Faber, London, 1974 (2nd ed.).
  5. Bean, W. J. (1914). Trees and shrubs hardy in the British Isles. Eighth edition, revised by D. L. Clarke, 1989. Vol. 1, A-C. Murray, London.
  6. Stuart, D. (2006). Buddlejas. Plant Collector Guide. Timber Press, Oregon, USA. ISBN 978-0-88192-688-0

Literature
  • Bean, W. J. (1970). Trees & Shrubs Hardy in the British Isles, 8th ed., Vol. 1.. (2nd impression 1976) London
  • Hillier & Sons. Hillier's Manual of Trees & Shrubs, 5th ed.. (1990). David & Charles, Newton Abbot.
  • Leeuwenberg, A. J. M. (1979) The Loganiaceae of Africa XVIII Buddleja L. II, Revision of the African & Asiatic species. H. Veenman & Zonen B. V., Wageningen, Netherlands.
  • Stuart, D. (2006). Buddlejas. Timber Press, Oregon, USA. ISBN 978-0-88192-688-0
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