Like others, we have a lot of Delphinium exaltatum and while it's not a hummingbird favorite, it is easy to grow, always comes back, and attracts some hummingbirds.
Don, we tried those California delphiniums in the ground and they either died or were eaten by rabbits. If I were to try them again, I would only plant in a container.
Hybrid delphiniums have never attracted hummingbirds in our yard. We can grow them in Wisconsin because we don't have the heat and humidity for the most part, but it's a beautiful but short-lived plant that needs to be staked and is very susceptible to many diseases---you really have to love this plant to bother with it.
Kathi and Michael Rock