Golden Trumpet Vine. Stansils Double Gold has unusual double flowers! This plant is more compact then common Allamanda vines that can grow quite massive. You can trim it into a small bush, or let it grow over a fence or trellis. Very attractive ever-blooming vine with bright yellow double trumpet-like flowers 3" wide, slightly fragrant, blooming year-round. Grows well in most soils. In areas where there is seasonal change, keep fairly dry during winter and prune in spring before growth begins. Rare variety, vine with fragrant yellow double flowers.