Ipomea coccinea

This is also known as Little Red Morning Glory. Everyone has seen the morning glories with large flowers (and hummingbirds are often depicted at those flowers in greeting cards and artwork). We have had those kind of morning glories in our yard, but have not seen hummingbirds use the large morning glory flowers. However, they will use the flowers of Little Red Morning Glory. This is a reseeding annual, so you only need to plant it once and the plants will come back with a vengeance every year. The one downfall of this plant is that it is mostly leaves and very few flowers. The one upside of the plant is that it flowers in the late summer/early fall when you have the largest number of hummingbirds in your yard.