Thevetia peruviana with peach-colored flowers
Thevetia peruviana

Native to Colombia. I tried growing the larger flowering Thevetia thevetioides with seeds from California in Barranquilla, but they all died after growing a couple of feet. Photo taken in Barranquilla.

Close-up Thevetia peruviana with peach orange flowers
A yellow thevetia peruviana flower
Thevetia peruviana yellow flower with a blue sky background