Seeds from Campsis radicans Judy or Cow Itch Vine. This clinging vine can grow 20 feet produces these sprays of golden orange blossoms from early summer right on through late fall in my zone 8B?and is hardy in zones 6 to 10. Very easy to grow and keep in bounds compared to other trumpets. An especially nice to grow over a trellis or privacy fence and will grow in full sun or part shade, producing more blossoms in full sun.