Trumpet Vine is a dense, vigorous, deciduous vine that clings to structures by aerial rootlets. Orange to scarlet blooms are prized by hummingbirds. Grows well in shade, but needs sun for best flowering. Blooms on new growth, so early spring pruning will not affect flowering.. Mature Size: 30′ x 10′ after 3 years. Full Sun (6+ Hours), Morning Sun Afternoon Shade.