Helichrysum petiolare

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Helichrysum petiolare
Helichrysum petiolare00.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Helichrysum
Species: H. petiolare
Binomial name
Helichrysum petiolare

Helichrysum petiolare, known as licorice or liquorice plant, silver bush everlasting flower, trailing dusty miller and kooigoed, is a species of flowering plant in the family Asteraceae, native to South Africa and introduced to Portugal and the United States of America.[1]

Description[edit]

Helichrysum petiolare in cultivation.

Helichrysum petiolare is a herbaceous perennial, a mound-forming evergreen shrub growing to 50 cm (20 in) tall by 2 m (6 ft 7 in) or more, with woolly grey-green leaves and dull white flowerheads in late summer (but not if grown as an annual in cooler climates).

Cultivation[edit]

It is cultivated for its foliage effect and as groundcover.[2] This plant prefers sun to part-shade with well-drained soil, being susceptible to root rot and is hardy to zones 9-11. The foliage has a faint licorice aroma. [3]

Numerous cultivars have been developed, of which the following have gained the Royal Horticultural Society's Award of Garden Merit:-

  • H. petiolare[4]
  • 'Goring Silver'[5]
  • 'Limelight'[6]
  • 'Variegatum'[7]

Uses[edit]

Its traditional common name of kooigoed translates as "bedding stuff" and it is still used to provide a soft and aromatic mattress. It is listed as a weed in the state of California.[8]

The essential oil has been investigated for its anti-microbial, anti-oxidant, and anti-inflammatory properties. In South Africa it forms a component of traditional African medicine. The leaves and twigs are boiled and prepared as a sort of tea to soothe coughs and fever. The leaves are also applied to wounds to prevent infection, and are ceremonially burnt to produce a traditional incense.[9] [10]

References[edit]

  1. ^ "GRIN Taxonomy for plants - Helichrysum petiolare". USDA ARS. Retrieved 21 June 2013. 
  2. ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964. 
  3. ^ "Missouri Botanical Garden - Helichrysum petiolare". Retrieved 21 June 2013. 
  4. ^ "RHS Plant Selector - Helichrysum petiolare". Retrieved 21 June 2013. 
  5. ^ "RHS Plant Selector - Helichrysum petiolare 'Goring Silver'". Retrieved 21 June 2013. 
  6. ^ "RHS Plant Selector - Helichrysum petiolare 'Limelight'". Retrieved 21 June 2013. 
  7. ^ "RHS Plant Selector - Helichrysum petiolare 'Variegatum'". Retrieved 21 June 2013. 
  8. ^ "CAL IPC - Helichrysum petiolare ". Retrieved 21 June 2013. 
  9. ^ http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=%22Helichrysum%20petiolare%22
  10. ^ "PlantzAfrica - Helichrysum petiolare". Retrieved 21 June 2013.