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Sep 21, Prune your Damson plum during the dormant stage in late winter or early spring. Shape the tree and remove dead and diseased branches. Also break off any suckers that grow from the roots or trunk of the tree. In early March apply 1 cup of fertilizer for each year of tree age, up to a maximum of 12 cups. Pruning a Damson You don't have to do it so often, but it's a job I enjoy. It's also possible to do this job while picking the fruit.

Pruning during the winter increases the chance of the tree becoming infected with silver leaf fungus so, like all plums, damsons should only be pruned from late spring to early autumn. Dec 02, Damsons are by naturesmall, scruffy trees that do notneed nor are improved by pruning. So ifyou can, just leave it to mature naturally. However, if necessary, the best time to cutit Estimated Reading Time: 6 mins.

Thin out the centre of the tree.

Apr 17, Julia pruning a 25 year old damson plum tree (variety Merryweather). Plums should only be pruned during a period of strong new growth, for us that means mid.