Golden Trumpet Tree in bloom
This tree is just finishing up bloom here in the San Francisco Bay Area, and while perfectly hardy in Sunset zones 14 through 17 around here, is seldom seen. I'll admit, in my zone 17 garden it seldom blooms as profusely as I've seen it in southern California, but even a few blooms at a time rather than covering the tree make my day in April and May. There is a fabulous group of these at the Ruth Bancroft Garden in Walnut Creek at the driveway approach to the Folly entry, not to be missed.
Here is a link that might be useful: Tabebuia chrysotricha in bloom