How to prune rustica rubra magnolia

Immediately after flowering (spring), before leaves fully expand. Use sharp, clean tools to make clean cuts back to a side branch or bud — never leave stubs. Seal large wounds with pruning paste. Keep pruning to a minimum; magnolias bleed heavily and heal slowly.

Only as needed — rarely more than once every few years. Magnolia × soulangeana 'Rustica Rubra' requires minimal pruning and resents it more than most woody shrubs. Prune only to remove dead, diseased, or damaged wood. If shaping is necessary, do so immediately after flowering. Avoid pruning in autumn or winter as wounds are slow to heal and prone to disease.

Use sharp, clean tools to make clean cuts back to a side branch or bud — never leave stubs. Seal large wounds with pruning paste. Keep pruning to a minimum; magnolias bleed heavily and heal slowly.