Verbena rigida

Verbena rigida, known as slender vervain[2][3] or tuberous vervain, is a flowering herbaceous perennial plant in the family Verbenaceae. It is native to Brazil and Argentina, and is not fully hardy in temperate climates, where consequently it is grown from seed as an annual.

Verbena rigida
Verbena rigida (8726586459).jpg
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Verbenaceae
Genus: Verbena
V. rigida
Binomial name
Verbena rigida
  • Verbena venosa Gillies & Hook.
  • Verbena scaberrima Cham.

Growing to 60 centimetres (24 in), it has a spreading habit, with stalkless toothed leaves and clusters of bright purple or magenta, scented flowers, held on branched stalks, in summer. Numerous cultivars have been selected for garden use.[4][5][6]

The species has gained the Royal Horticultural Society's Award of Garden Merit.[2][7]


  1. ^ a b "Verbena rigida". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew. Retrieved 2016-01-08.
  2. ^ a b "RHS Plant Selector - Verbena rigida". Retrieved 17 February 2022.
  3. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  4. ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
  5. ^ "Archived copy". Archived from the original on November 27, 2012. Retrieved August 2, 2012.{{cite web}}: CS1 maint: archived copy as title (link)
  6. ^ "Verbena rigida". Archived from the original on 2006-06-22.
  7. ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 106. Retrieved 5 February 2019.