Why is my rhododendron too big and how can I manage its size effectively?

Rhododendrons can become too big due to lack of pruning or improper planting location. To manage its size effectively, prune the plant in early spring before new growth starts. Remove older branches and trim back long shoots to maintain a desired shape and size. Additionally, consider transplanting the rhododendron to a more spacious location if it has outgrown its current spot.