QuestionsHow to growTrees and ShrubsPlantingbest time to repot an Azalea 0 Vote Up Vote Down Karen Cobbe asked 16 years ago Please can you advise me of the best time to replant a container Azalea (Rhododendron v ‘Glowing Embers’). It has been in the same container for 3 years, although it is still flowering I think It needs a bigger pot. Thanks. 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Rhododendrons are best re-potted immediately after flowering as a rush of new growthe begins. Use soil acid soil as well as lime-free compost.Â