7 hardy bignonia: the hardiest varieties
The most frost-resistant
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The trumpet vine, or Campsis, is a climbing plant that is generally quite hardy and enjoys being grown outdoors, even in the cooler regions. It enchants us with its trumpet-shaped flowers, usually in shades of orange-red, sometimes bright yellow or salmon pink. This liana is easy to grow in mild climates or by the seaside, although it withstands frost as long as it is south-facing, sheltered from the winds, and mulched in winter. If you live in a very harsh climate, however, opt for a variety of trumpet vine that is particularly resistant to cold.
Discover our selection of 7 trumpet vines among the hardiest available.
Campsis radicans 'Madame Galen': a very hardy variety to grow anywhere
Campsis tagliabuana ‘Madame Galen’ is a vigorous and very hardy bignonia that offers a long and spectacular summer flowering display. Its extensive USDA hardiness zone allows it to be grown throughout France. Indeed, once well established, this variety can withstand frosts down to -20°C. During its first winters, however, it is advisable to protect its stump with a thick and insulating mulch.
Campsis x tagliabuana ‘Madame Galen’© Wendy Cutler
The ‘Madame Galen’ bignonia is a deciduous liana with rapid growth and a very bushy habit, quickly reaching 10 m in all directions. Its splendid and abundant trumpet-shaped flowers in orange to salmon-red persist throughout the summer. The flowers bloom in the axil of the leaves, forming clusters of 4 to 12 trumpets, each 7 to 8 cm long.
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Bignonia: planting, pruning, propagatingVirginia Creeper 'Flava': a very unique variety that is highly resistant to cold
Campsis radicans ‘Flava’ is a hardy and very original variety of bush due to its golden yellow trumpet-like flowering. Its hardiness allows it to withstand temperatures as low as -15°C. Its stump is however capable of surviving at -20°C, provided the plant is situated in a sunny spot sheltered from cold winds in regions with the harshest winters.
The ‘Flava’ bush is a sarmentous shrub with a suckering stump, which can reach nearly 6 m in height and 4 m in spread at maturity. Its summer flowering occurs on the shoots of the year, forming cymes of 4 to 12 trumpet-shaped flowers in a stunning golden yellow colour. This flowering is followed by fruits in the form of flat brown pods, containing numerous small winged seeds. Its long stems with copper-brown bark bear foliage that is finely divided and dentate, bright green in summer, and golden yellow in autumn.
Discover other Campsis - Trumpet Creeper
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Campsis 'Summer Jazz Gold': a small, perfectly hardy trumpet vine
Campsis tagliabuana ‘Summer Jazz Gold’ is a highly floriferous cultivar with yellow flowers and low growth, well suited for small spaces and the coldest regions. Perfectly hardy, the hardiness of this trumpet vine extends beyond -15°C when grown in full sun and well-drained soil. However, be sure to protect the stump from the cold with a thick layer of mulch during the first few years.
The ‘Summer Jazz Gold’ trumpet vine is a small deciduous liana with relatively slow growth and a very bushy habit, reaching a maximum height of 3 m in all directions. The generous flowering begins in the first few years and continues throughout the summer. The bouquets contain up to 60 trumpet-shaped flowers measuring 7 to 8 cm long, bright yellow to golden yellow shaded with apricot. The large leaves measuring 30 to 40 cm long turn a bright golden yellow in autumn.
Campsis 'Orangeade': a possible novelty in all regions
Campsis x tagliabuana ‘Orangeade’ is grown outdoors throughout France for its very original spotted flowers. Sheltered from cold winds and in a well-exposed position, this hardy climbing plant can withstand frosts down to -15°C to -20°C. However, this hardiness is conditional, as it must be protected from strong winds.
The ‘Orangeade’ bignonia is a deciduous liana with a woody stump and underground stolons, benefiting from rapid growth that allows it to reach heights of 5 to 8 m. Its abundant flowering is very spreading, starting in June and lasting until September-October. The dense bouquets of 4 to 12 trumpets, each 5 cm long, feature flowers that are all different, variegated in red-orange and pastel orange.
Campsis 'Atropurpurea': a vigorous variety that withstands the lowest temperatures.
Campsis radicans ‘Atropurpurea’ is a variety with beautiful red flowering, perfectly hardy, low-maintenance, and thrives from the north to the south of France. Its stump is thus capable of withstanding frosts of around -20°C, and its stems survive at -15°C, provided the plant is placed in full sun, sheltered from the wind, and in deep, well-drained soil. In colder regions, young plants should be protected from severe frosts with mulch.
A sarmentous bush with a suckering stump, the ‘Atropurpurea’ trumpet vine is robust and vigorous, reaching about 6 m in height and 4 m in spread. In summer, it forms terminal clusters of 4 to 12 dark red trumpet-shaped flowers. Flat pods with small winged seeds follow this flowering. Its long climbing stems bear deciduous leaves, finely divided and dentate, which turn from green to golden yellow in autumn.
The Bignonia ‘Stromboli’: a sturdy climbing plant that tolerates both cold and heat very well.
Campsis radicans ‘Stromboli’ is a trumpet vine with splendid early blood-red flowering, proving to be as sturdy as it is hardy. Once well-established, it withstands temperatures down to -15°C (-20°C for its stump) and is tolerant of both cold and heat as well as drought. In regions with the harshest winters, it is advisable to plant it in a sunny position sheltered from cold winds.
Campsis radicans ‘Stromboli’ © jacinta lluch valero – Flickr
The ‘Stromboli’ trumpet vine is a fast-growing sarmentous bush that can reach heights of 6 m and a spread of 4 m. Its spectacular blood-red flowering occurs during the beautiful season, producing cymes of 4 to 12 trumpet-shaped flowers. The long stems with brown bark that exfoliates in strips with age provide magnificent green foliage that turns golden yellow in autumn, before disappearing for the winter.
Campsis 'Judy': a variety with a tropical appearance, yet remarkably hardy.
Campsis radicans ‘Judy’ is a hardy climbing plant, grown for its particularly exotic flowering in clusters. This variety withstands temperatures down to -15°C and can be grown outdoors in all regions of the mainland. To ensure its hardiness, it is best to plant it in a sunny position, sheltered from cold winds, and protect its stump from severe frosts with a thick layer of mulch.
The bignonia ‘Judy’ offers rapid growth and can reach up to 8 m in height. Its abundant flowering occurs during summer, producing trumpet-shaped flowers 7 cm long, in a yellow-orange colour with a red centre.
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