Native to southern Europe, Cornus mas is technically a dogwood. This tree produces clusters of tiny yellow flowers on bare branches from the end of February into March. It also has a high resistance to pests, disease and air pollution. This makes it a good street tree in urban areas. Grows 15 feet (4.5 m) in full sun to part shade and likes moist, but well-drained soil. It gets its common name from the bright red fruit it bears in mid-summer. Although the fruit is acidic, it is nonetheless edible and can be used to make jams and jellies. Unfortunately, the fruit is often quickly consumed by birds or squirrels or hidden by the tree’s dark green leaves, so sometimes you don’t see the fruit at all. Its flaking bark makes it an interesting and appealing addition to the winter garden, but the pretty yellow flowers are the main reason most people bother to find a spot for it.