There is a group of late flowering Azaleas. The Satsuki hybrids are simply a fine group of evergreen azaleas. The most common ones in this group are called Gumpos, and I have seen these bloom into June. They come in a wide variety of colors from pure white to vibrant oranges, and there are even some bicolor selections. They are low growing azaleas, as you can see from the photo. I think the one in the picture shows how low and spreading they are. You grow them the same way as you would any evergreen azalea. They like filtered shade, fertile well drained soil, and must be watered during dry periods. These are fine azaleas and were more popular before the Encore azaleas were introduced, but they certainly offer a different landscape look than the Encores.