Next summer when the plant is in leaf and the sap is flowing. Plums need to be growing when they are pruned in order for their sap to seal the cuts and keep out infection.
It's a tad too late to prune it this year in my opinion as you risk Silver leaf disease, Derrick. You also need to let it establish so I would have left it unpruned this year anyway. Here's a link to pruning fan-trained trees (including plums) from the RHS:
Posts
Next summer when the plant is in leaf and the sap is flowing. Plums need to be growing when they are pruned in order for their sap to seal the cuts and keep out infection.
It's a tad too late to prune it this year in my opinion as you risk Silver leaf disease, Derrick. You also need to let it establish so I would have left it unpruned this year anyway. Here's a link to pruning fan-trained trees (including plums) from the RHS:
http://apps.rhs.org.uk/advicesearch/profile.aspx?pid=625
Many thanks. I'll wait until Spring before I get out the secauteurs!!