Magnolia trees are a low maintenance species that don’t need an awful lot of care. They are also resilient to many common diseases and pests, and can live for more than 100 years if cared for properly. Place them in the right space to make the most of them – larger magnolias can branch out over 10 feet, so they need plenty of space to grow.
Mature magnolias will last hot summers and drought, however growing trees need to be watered regularly before they are established. Like all plants, magnolias need a little bit of pruning to remove dead branches to stop them being an energy drain and to keep them looking in their best condition. You should prune your magnolia after blooming season in late spring or early summer – if you prune at the wrong time the bloom will be less impressive.
If it is growing well, you don't need to fertilise. However you can apply fertiliser if it is browning or isn't growing as well as it should be.