Q: Everything I have found says it’s not possible to get multi-colored flowers from a single angel trumpet. I have a single plant that is producing both pink and also yellow blooms.

A: The most likely explanation for the different colors is the age of the flowers. Brugmansia blooms commonly open either white or light yellow and then change color during the day. I do not think it would be genetically possible to have two flowers of the same age but different colors on the same branch.