Tabebuia caraiba (Silver Trumpet Tree) | Top Tropicals Plant ...The Silver Trumpet Tree (Tabebuia aurea, formerly T. argentea) is a small, deciduous, drought-tolerant tree (20–30 ft) popular in South Florida for its brilliant yellow, bell-shaped spring flowers. It features striking silvery-green foliage, a corky, twisted trunk, and thrives in full sun, often blooming heavily after dry periods.