Another +1 for Twinkly. I don't own them but a close friend does. And to say they are impressive is an understatement. You just wrap them like you do normally and the software is smart enough to map each light's physical location.

For any addressable light system for a tree or bush I would recommend getting more lights than you think you need.

My personal christmas decoration consists of a charly brown christmas tree with a single ornament on it. It started as a joke (and convenience for ongoing construction), but it became a tradition. I truly appreciate the zen nature of unfolding it into an appealingly broken pattern and also having just a single ornament.