Mascagnia macroptera - This heat-loving evergreen vine produces a late spring display, with eye-catching clusters of bright yellow, orchid-shaped flowers against dark green foliage. Often blooms again in the fall. Seed pods have a papery butterfly-like appearance, giving this vine its name. Use on a trellis or as a mounding shrub or sprawling ground cover.

Fast-growing vine that reaches 10-12 feet high. It produces clusters of bright yellow flowers from spring to frost. While many other plants are touted as spring-to-frost bloomers, this one is the real deal.