Commonly called Brazilian vervain, this plant is a rapid-growing, clump-forming tender
perennial. Plants typically form a 1-foot tall basal clump of dark green leaves from
which rise erect, slender, wiry, branching, stems to 3.5’ tall bearing clusters (to
2” across) of tiny rose-violet flowers.
Though a tender perennial it often grows as an annual in Oklahoma. If sited in sheltered
locations with southern exposures, plants can survive mild winters. Even if plants
do not survive winter, they often remain in gardens for a number of years through
self-seeding. Plants have no serious insect or disease problems, though watch for
powdery mildew. This species is very heat and drought resistant and makes a great
cut-flower and attracts butterflies and hummingbirds. Improved cultivars include ‘Little
One’, ‘Lollipop’, and Meteor Shower®.
Exposure: Full sun/part shade
Soil: Poor soils, good drainage
Hardiness: Use as an annual