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Verbena bonariensis (Purple Top) - A perennial plant with an open, tall form to 4-6 feet tall. It has dark green toothed leaves along thin square scabrous (rough textured) stems and at the tips of these stems are rounded 2- to 3-inch-wide clusters of pinkish-purple buds that open to display pink flowers that later fade nearly to white over a long period from spring to fall.
Plant in full sun (best) or in partial shade. Tolerates heat and dry conditions but also more regular irrigation and is perennial in USDA Zones 7 to 10 and useful as a long blooming annual in colder climates.
Verbena bonariensis is native to Brazil and Argentina though has escaped cultivation and is naturalized on disturbed sites in California and the southeastern US. The name for the genus comes from the Latin word for sacred boughs of plants made up of olive, myrtle and other plants (possibly Vebena) and the specific epithet was given to this plant by Linnaeus in reference to the city of Buenos Aires (named for Our Lady of Bonaria, patroness of Cagliari), where this plant was reportedly discovered in 1726. We have grown this useful and attractive plant since 1989.
The information displayed on this page about Verbena bonariensis is based on our research conducted about this plant from books in our nursery library as well as from information that is provided by reliable online resources. We also have included our own observations made about it as it grew in the nursery gardens and other gardens visited, as well how the crops of this plant performed in the containers when we had them in our nursery field. We also include comments received from others and welcome hearing from anyone who has information about this plant, particularly if it includes cultural information aiding others to better grow it.
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