Many azaleas produce flower before they open their foliage buds. Be patient. Nature will take its course.

Some azaleas are naturally deciduous. They usually open their flower buds about the same time they open their foliage buds.

Other azaleas are evergreen. They appear to be evergreen because they grow two sets of leaves each year. Evergreen azaleas have dimorphic leaves, known as spring and summer leaves. The spring leaves unfold at the beginning of the growing season and are dropped in autumn. Summer leaves emerge in early summer and are smaller, thicker, darker, and more leathery than spring leaves. They remain on the plant during the dormant period and drop in the spring, however, summer leaves may persist for several years in warm climates. Some "evergreen" azaleas are deciduous in colder climates. Sometimes this is called being semievergreen.

Here is a link that might be useful: All about rhododendrons and azaleas

Thank you for the information - The leaves are appearing now!