| You should even prune encore azaleas immediately after their first bloom. Their subsequent blooms are on new buds. |
Here is a link that might be useful: Encore Azaleas
| Encore is a newish group of azaleas that bloom in the spring on old wood like other azaleas and then bloom during the summer on new wood. They are marketed as ever-blooming azaleas and do this best in the deep South. In any case it doesn't matter since they all get pruned at the same time, just after they finish blooming. |
Here is a link that might be useful: How to grow rhododendrons and azaleas.