Since installing my new flower garden I have had a hummingbird take up residence in one of my trees, in the spring he was mostly brown but now he is iridescent green with a red gorget so I'm pretty sure he's a young male and this is his first home. Things are winding down for the cool season, right now I think the nasturtiums are his main nectar source and once we get frost they will be gone. So I want to get some winter blooming nectar plants for him and I was hoping for some suggestions.

This is what I have so far: Snapdragons, lobelias, abelia, flowering quince, narcissus.

What can I add to provide plenty of nectar through the cool months?

Thanks in advance!