Convolvulus cneorum

Convolvulus cneorum, the silverbush or shrubby bindweed,[1] is a species of flowering plant in the family Convolvulaceae, which contains many plants described as "bindweed". The Latin specific epithet cneorum is a word of Greek origin referring to a small olive-like plant, possibly a species of Daphne.[2]

Convolvulus cneorum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Solanales
Family: Convolvulaceae
Genus: Convolvulus
Species:
C. cneorum
Binomial name
Convolvulus cneorum

Description

Unlike other species in the genus, it is an evergreen shrub rather than a vine, forming a low mound 0.6–1.2 m (2 ft 0 in–3 ft 11 in) in height, with a similar spread. It produces many pink buds unfurling to white 2.5–4 cm (1–2 in) diameter flowers which are white with a yellow throat. These appear at the end of stems in loose panicles and may almost completely cover the plants for a long period during the summer months. The leaves are grey-green and are covered in fine hairs which give the plant a silvery appearance.[3]

Distribution

The species is found in coastal areas of Spain, Italy, Croatia and Albania[3] In Italy it is found on the coast of Tuscany and western Sicily and on the islands of Capri and Li Galli. In Croatia it is found on many of the islands off the coast. It is often found growing in cracks in rocks.[4]

Cultivation

The species prefers an alkaline soil, full sun and good drainage. It tolerates near-drought conditions for short periods,[5] and is cold hardy to −9 C.[3] It has gained the Royal Horticultural Society's Award of Garden Merit[1] (confirmed 2017).[6]

References
  1. "RHS Plantfinder – Convolvulus cneorum". Retrieved 30 January 2018.
  2. Harrison, Lorraine (2012). RHS Latin for Gardeners. United Kingdom: Mitchell Beazley. ISBN 184533731X.
  3. Irish, M. (2006-02-06). Perennials for the Southwest: Plants That Flourish in Arid Gardens. United States: Timber Press. p. 314. ISBN 978-0-88192-761-0. ISBN 0-88192-761-9.
  4. Pandza, M. (March 2002). "Localities of the species Convolvulus cneorum L. (Convolvulacae in Croatia". Nat. Croat. 11 (1): 113–118. ISSN 1330-0520. Retrieved 2007-12-08.
  5. "Convolvulus cneorum". Gardenia.net. Retrieved 16 September 2019.
  6. "AGM Plants – Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 22. Retrieved 24 January 2018.

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