A popular archetypal cottage garden perennial. Very upright plants, which require no staking, with clusters of purple scented flowers on branching stems from midsummer to autumn. Striking when planted in a mass and will self seed if allowed.
Low foliage and tall flower stems make it ideal for dotting amongst other plants in a border.
Gained the RHS Award of Garden Merit.
Happy in most soils, including quite dry, in full sun or partial shade.
Introduced from Brazil and Argentina in 1732.
Common name(s): Purple Top, Argentinian Vervain.
Photo courtesy of The Hardy Plant Society