Campsis radicans 'SERENA' trumpet vine, trumper creeper - climbing

Campsis

The genus Campsis consists of only two species and they both carry the energy of subtropical climbers that, over the course of evolution, learned to ascend using small aerial rootlets and to brace themselves against tree bark as if it were a natural ladder. They belong to the family Bignoniaceae, a group known for its trumpet flowers and often woody climbing habit. C. radicans originates from North America, whereas C. grandiflora comes from East Asia, an intriguing geographical split that suggests a much earlier distribution of the genus’s ancestors across the warmer regions of the Northern Hemisphere. The genus was described by João de Loureiro (1717–1791), a Portuguese missionary and botanist working in Southeast Asia, who defined it on the basis of its characteristically curved stamens, reflected in the Greek kampein, meaning “to bend”. The nomenclatural history is, however, tangled: European gardens of the 17th century were unsure where to place the plant, and it appeared under the names Bignonia, Tecoma and even Apocynum, until the 19th century finally settled the genus in its present form. In the wild it is a climber of bright woodland edges, well‑drained riverbanks and disturbed habitats, where its rapid growth and ability to root along the stems allow it to occupy space before slower woody plants can take hold.

Campsis radicans, trumpet vine, is one of the most striking North American climbers, admired by Europeans as early as the colonial period for its softly red, trumpet‑shaped flowers. The species was described by Carl Linnaeus (1707–1778) in 1753 as Bignonia radicans and was later transferred to the genus Campsis by Édouard Bureau (1830–1918). Its native range stretches from Iowa and New Jersey down to Florida and Texas, where it inhabits river floodplains, woodland margins and abandoned pastures. In the pre‑Columbian landscape it was tied mainly to moist valley bottoms, but with the spread of agriculture and the disturbance of natural habitats it became a successful coloniser of fences, hedgerows and neglected plots. It reached Europe in the 17th century, first appearing in England, and quickly established itself in gardens thanks to its vivid colour and generous flowering at a time when most native woody plants have long finished blooming. It is valued for its toughness and indestructibility as well – it can envelop pergolas, walls and old trees, forming dense green screens. However, this feature demands respect: the species’ root suckers and its ability to root along the stems make it a plant that can easily get out of hand unless given clearly defined boundaries. Culturally it is associated with the American South, where it has become an almost iconic feature of rural gardens, and its folk name “cow‑itch vine” recalls the fact that contact with the foliage may cause skin irritation in sensitive individuals.