How to Prune magnolia 'Peter Dummer'?
Minimal pruning required, see magnolia pruning. Deciduous magnolias should only be pruned between midsummer and early autumn

magnolia 'Peter Dummer' · Magnolia 'Peter Dummer'
Grow in moist but well-drained, neutral to acid soil in full sun or part shade with shelter from cold winds. See magnolia cultivation
Minimal pruning required, see magnolia pruning. Deciduous magnolias should only be pruned between midsummer and early autumn