Here are some pictures, look under.

Azalea Bushes

Here is a link that might be useful: Azalea Bushes

Azaleas that grow like this may not be getting enough sun or may be getting uneven soil moisture. Four hours of morning sun would be the least I would try to give them. I would try not to have periods of dry and wet soil on the top 4" of soil.

Azaleas can be pruned anywhere in the stems and they will grow new stems so feel free to prune now if buds are not an issue. Pruning after they bloom but before July is best for most. Encores can be pruned at any time although they should rarely need pruning if grown in an area where they can grow to their size at maturity.

Another suggestion: maintain about 3-4" of acidic mulch, such as pine needles mulch. It helps keep the soil evenly moist and reduces he frequency of waterings. Check that your soil drains well (it should if they all grow in raised beds) and that its soil pH is acidic. Note: clay soil should not be used in the raised beds.