Most of the spring blooming flowers that contain the nectar a hummingbird needs are actually bright blue - and so bright blue flowers in spring and early summer will give you a head start. We discovered that quite by accident one spring when my husband was carrying things around in a bright blue bucket. But only if he had that bucket. Which just goes to show that the initial attraction is because of a color rather than a flower shape. Attract them using color, and then make sure you have food plants so that they will stay for the summer.
Many people ask about putting up a feeder for the hummingbirds.
I don't, because it is too easy for the nectar to age into something that will hurt rather than harm the birds. You need to change the nectar daily in hot weather - and it can get frustrating and expensive at the start of the season to be changing nectar daily for birds who don't seem to be around yet. Winged Ballerinas Butterflies are lovely in the garden - watch two of them at play and it's like having special seats at a beautiful ballet. They are also in love with the coneflower family. I have seen my clump of Echinacea 'White Swan' so covered with them that it looked like a landing pad.