M x soulangeana is very hardy and not difficult to grow. A reliable shrub or small tree that will ultimately reach a height and spread of up to 25 ft.
Will perform best if planted in full sun and sheltered from cold winds. Choose a well-drained site. Dig over the soil area before planting and add plenty of humus or well-rotted compost. Dig a hole large enough to take the roots fully spread out. Add a good general purpose fertilizer such as bonemeal. Firm in well and water thoroughly.
Water regularly until well established.
Makes a good specimen plant or small tree.
Can be pruned in midsummer once flowers have faded. Do not prune back too hard.
Apply a mulch of well rotted compost in the autumn.
Layer or take cuttings in late spring or early summer. Cuttings can be slow to root so some bottom heat is recommended. Alternatively sow seed in autumn and spring.
See also: Magnolia Susan, Magnolia Sellata