Plant Profile: Campsis radicans

Campsis radicans, commonly known as trumpet vine, is a robust, multi-stemmed, deciduous vine that clings to structures using aerial rootlets. This woody plant is indigenous to the southeastern United States but has also established itself in various northern regions. In its natural habitat, it thrives in swamps, forests, and thickets.

Often referred to as cow-itch vine, trumpet vine can cause skin irritation, including redness and itching, upon contact with its leaves.

This vine is adaptable and can flourish in a range of soil types, though it performs best in lean to average soils with consistent moisture and in full sun to partial shade. While it can grow in shaded areas, optimal flowering occurs with ample sunlight. Since it blooms on new growth, pruning in early spring does not hinder flowering. It is essential to support these vines on sturdy structures, as mature specimens can become quite heavy. The challenge with Campsis radicans lies not in cultivation but in managing its growth; it tends to produce numerous suckers from underground runners and self-seeds readily, often creating dense colonies that can outcompete other plants. To control its spread, consider planting it near concrete or in areas that can be mowed, as cutting back the suckers will help keep them in check.

Regarding pests and diseases, this plant generally does not face significant issues, although it is known for its aggressive spreading behavior.

Fire Risk: This species has a high flammability rating and should not be planted within the defensible space around your home. It is advisable to choose plants with low flammability ratings for areas closest to your residence.