Dianthus barbatus

Dianthus barbatus, the sweet William,[2] is a species of flowering plant in the family Caryophyllaceae, native to southern Europe and parts of Asia. It has become a popular ornamental garden plant. It is a herbaceous biennial or short-lived perennial plant growing to 13–92 cm tall, with flowers in a dense cluster of up to 30 at the top of the stems. Each flower is 2–3 cm diameter with five petals displaying serrated edges. Wild plants produce red flowers with a white base, but colours in cultivars range from white, pink, red, and purple to variegated patterns. The exact origin of its English common name is unknown but first appears in 1596 in botanist John Gerard's garden catalogue. The flowers are edible and may have medicinal properties. Sweet William attracts bees, birds, and butterflies.

Dianthus barbatus
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Caryophyllaceae
Genus:	Dianthus
Species:	D. barbatus
Binomial name
Dianthus barbatus L.
Synonyms[1]
Caryophyllus barbatus Moench Cylichnanthus barbatus Dulac Dianthus aggregatus Poir. Dianthus compactus Kit. Dianthus corymbosus F.Dietr. Dianthus girardinii Lamotte Dianthus hispanicus Dum.Cours. nom. illeg. Dianthus latifolius Willd. Dianthus pulcherrimus Loisel. Dianthus splendidissimus Hoffmanns.

Description

Sweet William grows in the mountains of southern Europe from the Pyrenees east to the Carpathians and the Balkans, with a variety disjunct in northeastern China, Korea, and southeasternmost Russia.[3][4][5] It grows to 13–92 cm tall (depending on the variety),[6] with green to glaucous blue-green tapered leaves 4–10 cm long and 1–2 cm broad. The flowers are produced in a dense cluster of up to 30 at the top of the stems (known as an umbel) and have a spicy, clove-like scent; each flower is 2–3 cm diameter with five petals with serrated edges; in wild plants the petals are red with a white base.[5][7][8]

There are two varieties:[5]

• Dianthus barbatus var. barbatus. Southern Europe. Leaves broader, up to 2 cm broad.
• Dianthus barbatus var. asiaticus Nakai. Northeastern Asia. Leaves slenderer, not over 1 cm broad.

English name

John Gerard

Many legends purport to explain how sweet William acquired its English common name, but none is verified. It is often said to honour the 18th century Prince William, Duke of Cumberland. As a result of the Duke's victory at the Battle of Culloden and his generally brutal treatment of the king's enemies, it is also claimed that the Scots sometimes call the flower "stinking Billy".[9][10][11] Though this makes a nice story, it is entirely untrue. The Scots sometimes refer to the noxious ragwort as stinking Billy in memory of the infamous Duke. Phillips speculated that the flower was named after Gerard's contemporary, William Shakespeare.[12] It is also said to be named after Saint William of York or after William the Conqueror. Another etymological derivation is that william is a corruption of the French oeillet, meaning both "carnation" and "little eye". Sweet William is a favourite name for lovelorn young men in English folkloric ballads, e.g., "Fair Margaret and Sweet William".

Cultivation and uses

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Sweet William seeds

Sweet William is a popular ornamental plant in gardens, with numerous cultivars and hybrids selected for differing flower colour, ranging from white, pink, red, and purple to variegated patterns.[8]

The plant was introduced to northern Europe in the 16th century, and later to North America and elsewhere, and has become locally to widely naturalised in these areas.[7][13]

John Gerard praises its beauty but omits any reference to medicinal uses. Its height makes it convenient for flower arrangements. In the Victorian language of flowers, sweet william symbolizes gallantry. The plant is widely used in borders, rock gardens and informal country cottage style gardens. Sweet William is a good candidate for a naturalistic garden because its nectar attracts birds, bees, and butterflies. Its flowers are considered edible. Sweet Williams is a family of dianthus. It thrives in loamy, slightly alkaline soil with sun to partial shade. Propagation is by seed, cuttings, or division, but seeds of cultivars will not breed true. If it is planted from seed after the last frost, it will flower in the second year. If it is planted in flats before the last frost and then transplanted, it may flower in the first year. Some gardeners recommend deadheading to encourage further flowering. The plant is self-seeding.[14] Sweet William can suffer from Fusarium Wilt which causes the leaves to curl or droop down.[15]

In 1977 the question of possible medical uses was revisited by Cordell. Saponins were found in Sweet William, but there has been little follow-up.[16]

At the wedding of Prince William and Catherine Middleton on 29 April 2011, Catherine Middleton included Sweet William in her bouquet, a tribute to her bridegroom.[17]

Gallery

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  closeup view of Dianthus barbatus
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  Pink Sweet William
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  Different colours
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  More colours
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  Double Sweet William
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  Potted plant D. barbatus
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  'Heart Attack' flower cluster closeup
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  Flower bud of sweet william
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  Full-grown plants
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  Dianthus barbatus in full bloom
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  Dark pink cultivar of Dianthus barbatus
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  Pink sweet william with white halo
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  White sweet william with tinge of pink

References

1. "The Plant List: A Working List of All Plant Species". Retrieved 19 April 2015.
2. Thompson and Morgan plant catalog spelling - Sweet William
3. Flora Europaea: Dianthus barbatus
4. Med-Checklist: Dianthus barbatus
5. Flora of China: Dianthus barbatus var. asiaticus
6. Types of Sweet William Flowers
7. Blamey, M. & Grey-Wilson, C. (1989). Flora of Britain and Northern Europe. ISBN 0-340-40170-2
8. Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan ISBN 0-333-47494-5.
9. Meyer, D. (1987). The Highland Scots of North Carolina, 1732–1776, p. 14. Univ. N. Carolina Press
10. Hairr, J. (2002). Harnett County: A History, pp. 23–24. Arcadia Publishing
11. Ross, D. R. (2001). On the Trail of Bonnie Prince Charlie, p. 112. Dundurn Press
12. Phillips, H. (1829). Flora Historica, p. 43. E. Lloyd & Son
13. Missouriplants: Dianthus barbatus
14. Crockett, J.U. 1961. Greenhouse gardening as a hobby. Doubleday & Company, Inc., Garden City, New York.
15. https://horticulture.ahdb.org.uk/download/8433/file
16. Cordell, G. A., Lyon, R. L., Fong, H. H., Benoit, P. S., & Farnsworth, N. R. (1977). Biological and phytochemical investigations of Dianthus barbatus cv." China Doll"(Caryophyllaceae). Lloydia, 40(4), 361-363.
17. https://www.express.co.uk/life-style/life/962301/Meghan-Markle-royal-wedding-kate-middleton-bouquet-flowers-compared

External links