Black Locust

Robina pseudoacacia, Produces tons of edible fragrant blossoms!  This tree's ability to fix nitrogen in the soil helps it grow vigorously (which, in some circumstances, can lead to unwanted spread of this species). The dense wood from black locust is incredibly rot resistant, so it makes great garden posts, lumber and firewood. Blossoms attract many pollinators including bees, butterflies and  hummingbirds.