Campsis Yellow Trumpet Campsis yellow trumpet is exactly as the title describes, with its golden yellow trumpet shaped blooms, this beauty looks as if it should be part of a marching band! This long-lasting hardy shrub will climb and flower all the way from May through to the end of September, giving you plenty of opportunity to admire the glorious butter yellow blooms! Reaching an equal height and spread of 152cm (59.8in) this free-flowering trumpet vine naturally remains compact and neat even when climbing up a sunny wall or fence. Add an exotic touch to your British garden!