Hydrangea paniculata
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Cornales
Family: Hydrangeaceae
Genus: Hydrangea
Species:
H. paniculata
Binomial name
Hydrangea paniculata

Hydrangea paniculata, or panicled hydrangea, is a species of flowering plant in the family Hydrangeaceae native to southern and eastern China, Korea, Japan and Russia (Sakhalin).[2][3] It was first formally described by Philipp Franz von Siebold in 1829.[4]

Description

It is a deciduous shrub or small tree, 1–5 m (3.3–16.4 ft) tall by 2.5 m (8 ft) broad, growing in sparse forests or thickets in valleys or on mountain slopes.[2]

The leaves are broadly oval, toothed and 7–15 cm (3–6 in) long. In late summer it bears large conical panicles of creamy white fertile flowers, together with pinkish-white sterile florets. Florets may open pale green, grading to white with age, thus creating a pleasing “two-tone” effect.[5]

Cultivation

H. paniculata 'Grandiflora'

In cultivation it is pruned in spring to obtain larger flower heads.[6]

Numerous cultivars have been developed for ornamental use, of which the following have gained the Royal Horticultural Society’s Award of Garden Merit:-[7]

  • ’Big Ben’[8]
  • ’Limelight’ (PBR)[9]
  • ’Phantom’[10]
  • Pink Diamond = ‘Interhydia’[11]
  • Pinky-Winky = ‘Dvppinky’ (PBR)[12]
  • ’Silver Dollar’[13] (suitable for smaller gardens)

Those cultivars marked (PBR) are protected by plant breeders' rights from unauthorised propagation.

Other cultivars include:

  • ‘Praecox,’[14] a particularly early flowering cultivar

Uses

Hydrangea paniculata is sometimes smoked as an intoxicant, despite the danger of illness and/or death due to the cyanide[15] present as cyanogenic glycosides.[16]

Etymology

Hydrangea is derived from Greek, meaning ‘water vessel’, in reference to the shape of the capsules.[17]

Paniculata means ‘with branched-racemose or cymose inflorescences’, ‘tufted’, ‘paniculate’, or ‘with panicles’. This name is about the flowers of this species.[17]

References

  1. ↑ Gao, Q.; Botanic Gardens Conservation International (BGCI).; IUCN SSC Global Tree Specialist Group. (2019). "Hydrangea paniculata". IUCN Red List of Threatened Species. 2019: e.T147376037A147618345. doi:10.2305/IUCN.UK.2019-2.RLTS.T147376037A147618345.en. Retrieved 31 July 2023.
  2. 1 2 Wei Zhaofen; Bruce Bartholomew. "Hydrangea paniculata". Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 18 August 2012.
  3. ↑ Hydrangeas for American gardens, by Dirr, Michael. Timber Press, 2004. ISBN 0881926418/ISBN 9780881926415
  4. ↑ "Hydrangea paniculata". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens. Retrieved 10 August 2009.
  5. ↑ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
  6. ↑ "Youtube - Gardening tips: pruning Hydrangea paniculata". YouTube. Archived from the original on 2021-12-21. Retrieved 23 June 2013.
  7. ↑ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 51. Retrieved 7 March 2018.
  8. ↑ "RHS Plantfinder - Hydrangea paniculata 'Big Ben'". Retrieved 7 March 2018.
  9. ↑ "RHS Plantfinder - Hydrangea paniculata 'Limelight'". Retrieved 7 March 2018.
  10. ↑ "RHS Plantfinder - Hydrangea paniculata 'Phantom'". Retrieved 7 March 2018.
  11. ↑ "RHS Plantfinder - Hydrangea paniculata Pink Diamond = 'Interhydia'". Retrieved 7 March 2018.
  12. ↑ "RHS Plantfinder - Hydrangea paniculata Pinky-Winky = 'Dvppinky' (PBR)". Retrieved 7 March 2018.
  13. ↑ "RHS Plantfinder - Hydrangea paniculata 'Silver Dollar'". Retrieved 7 March 2018.
  14. ↑ Pfeiffer, Sue A. (2009). "Early Bloomer: Hydrangea paniculata 'Praecox'" (PDF). Arnoldia. 67 (1): 44. Retrieved 2 October 2019.
  15. ↑ Erowid Hydrangea Vault
  16. ↑ ASPCA Animal Poison Control Center
  17. 1 2 Gledhill, David (2008). "The Names of Plants". Cambridge University Press. ISBN 9780521866453 (hardback), ISBN 9780521685535 (paperback). pp 206, 289
  • Friedman, William. "Eminent panicle hydrangeas." Posts from the Collections, Arnold Arboretum of Harvard University website, 15 July 2019. Retrieved 2 October 2019.
  • Rose, Nancy. "A Parade of Hydrangeas." ARBlog, Arnold Arboretum of Harvard University website, 2 July 2016. Retrieved 2 October 2019.
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