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botanical name:
Verbena bonariensis
Verbena bonariensis © Deeproot Plant Base
common name:  Buenos Aires Verbena, Brazilian Verbena, Purple-Top Vervain
synonyms:  Verbena patagonica
family:  Verbenaceae
characteristics: perennial
height: 1.50m
width: 0.60m
growth rate: fast
growth habit: erect
leaf colour: green
flower colour: purple
stem/bark: green
main season: Summer
aspect: full sun
conditions: dry soil, moist soil, sandy soil
preferred soil pH: alkaline
minimum temp: -4°C
USDA zone: 9 to 10
description:
Sparsely leaved, upright branching, wiry stems carry small heads of lilac-purple flowers, which persist over a long period.

cultivation:
Well drained soil in full sun. Needs a mild location to over-winter, but can be treated as on annual.

propagation:
From seed. May self-seed in favourable conditions.

usage:
Valuable for providing height in borders and other situations, but without creating a dense screen. The wiry stems give a light, airy and transparent effect.
Attractive to butterflies.

other notes:
RHS AGM
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