Lavatera trimestris

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Annual mallow
Scientific classification edit
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Genus: Lavatera
L. trimestris
Binomial name
Lavatera trimestris

Lavatera trimestris, common names annual mallow, rose mallow, royal mallow, regal mallow,[1] common annual tree mallow[2] syn. Althaea trimestris[3] is a species of flowering plant native to the Mediterranean region.

It is an annual growing to 120 cm (47 in) tall by 45 cm (18 in) wide, producing shallow funnel-shaped flowers in summer, in shades of white and pink, with maroon centres and maroon veining on the petals.[4] The Latin trimestris literally means "of three months", referring to the growing and flowering period.[5] Numerous cultivars have been developed for garden use, all of which are annuals to be sown in spring for flowering the same year. The cultivar 'Silver Cup'[6] has gained the Royal Horticultural Society's Award of Garden Merit.[7]


  1. ^ L. trimestris at Malvaceae Info
  2. ^ "RHS Plantfinder - Lavatera trimestris". Retrieved 20 March 2018.
  3. ^ Synonymy of Lavatera at Malvaceae Info
  4. ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
  5. ^ Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN 9781845337315.
  6. ^ "RHS Plant Selector - Lavatera trimestris 'Silver Cup'". Retrieved 21 May 2013.
  7. ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 59. Retrieved 20 March 2018.

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