Where I have azaleas planted, there seems to be a lot of ants. Will they harm the plants?
Can Ants Harm Azaleas
Certified GKH Gardening Expert
Ants by themselves are typically not considered harmful to azaleas - however, there might be a more underlying reason why they are congregating around your azaleas and that reason is aphids, which are harmful. I would check your azaleas for an aphid infestation, just to be on the safe side. More information on the aphids and the symbiotic relationship between ants and aphids can be found in the following articles:
Here is another article that may interest you on how to keep ants off your flowers: