The snail vine, Phaseolus giganteus, is delightfully fragrant.

The center of the flower and the end of the thin, erect may have a small area of yellow and/or white but the color is usually faint and only noticeable upon close examination.

This plant might be more susceptible to aphids but is definitely invasive and has been compared by multiple growers to kudzu.

Rapid growth combined with the ability of vines touching the ground to take root make this an invasive plant.

[5][6] This plant has been known to regrow even after all foliage visible above ground has died from frost.