They visited the flowers first. The red tubular flowers planted specifically to attract them. But the tiny birds appeared rarely and randomly. My desire to see hummingbirds in the garden on a regular basis led to the addition of hummingbird feeders under the dogwood tree and on the porch window. It took about a week for them to find the feeders. For the rest of the summer and into the fall we had hummingbirds in the garden all day long.