Q:

How do you prune Japanese magnolias?

A:

Quick Answer

Japanese magnolias, also known as saucer magnolias, flower from late winter to early spring. To prune this plant, you need pruning shears and a pruning saw.

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Full Answer

  1. Shape the young tree

    To help a Japanese magnolia grow straight and vertical, prune multiple stems while it is still young enough to leave the dominant trunk. Remove low branches that might become obstructions at the collars against the trunk.

  2. Prune for health and appearance

    Perform seasonal pruning in late spring to mid-summer after the tree has finished blooming for the year. At this time, cut off any damaged, dead, diseased or infested limbs. Trim branches that rub together or against the tree's trunk, as these might damage the bark and open the tree to disease or infestation. Be sure to cut cleanly against the trunk, making sure to avoid creating shredded or ragged edges.

  3. Prune sparingly

    Though Japanese magnolia trees should be shaped when young and pruned for health, they should be pruned and shaped as little as possible when mature. Pruning cuts in mature trees do not heal easily, and the tree may not be able to recover from the damage. Once a Japanese magnolia tree has matured enough to establish its position and shape, it will live longest if it is left completely on its own.

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